How to Use a Telescope - Comprehensive Telescope Kits

!: How to Use a Telescope - Comprehensive Telescope Kits

For the budding stargazer, the most important instrument in his inventory should be a telescope. Once this debate is resolved, the next question is where to source this all important instrument from. You can work from scratch, buy all the raw material required, and build your own telescope, or you can take the easier and more practical way out and buy yourself a telescope kit which contains every last thing you will need to make you telescope and then just assemble the supplies together. It is the telescope kit that is the recommended option for a beginner. Ideally, only professional should attempt to build a telescope out of practically nothing. Telescope kits not only come with everything you need to build a good telescope, they also contain a descriptive instruction manual that will lead you through each step of the telescope construction process.

The commonly available kits have the elements and the guides for making a Dobsonian telescope. This telescope uses a secondary mirror in addition to a primary mirror. The other optical constituents of this telescope are a finder scope, an eye piece, a focuser, and the mirror support system. The housing compartment for all these elements is not included as part of the kit.

Using such kits to construct your own telescope is graced with numerous advantages. Most of these advantageous highlights are meant for beginners, who can save both time and money with this option. A complete kit allows the builder to save the time that would otherwise be spent searching high and low for the correct components. The average price of a telescope kit is 0 to 0. They can be purchased at hobby centers everywhere, and if you find a discount, the better bargains you will get.

For teachers who need a demonstration to incite the interest of youngsters and get them hooked onto an interesting hobby such as this, telescope kits are a good teaching aid. It is possible to use such a kit for classes in school and demonstrate the whole process to the students. There is no age restriction for this hobby, making it a good hobby for anyone interested in it.

Telescope kits generally are aimed at beginners, amateurs just starting out on their telescope love affair, or at students of the astronomy who intend to pursue a profession in the field someday. To build a telescope using such a kit, you do not need a degree in astronomy or even the experience of an expert. Absolutely any novice is capable of constructing a decent instrument with the instructions given. Manuals that come with the kits, are step-by-step guides, and even have diagrams that explain the methods detailed. Affordably priced, and attractively marketed, these kits can pack a pretty powerful telescope and are a lure for any beginner.

It takes only 2-3 days to have an operational, fully functional telescope in your hands after you get your kit. The total work-hours required for it are hardly 15 or 20 from your time. You can work for an hour a day or work a marathon stretch over two days to complete your project. A lazy weekend is the best time to get started. There is never the complication that arises from missing a crucial element during purchase, because these kits always have everything. If you find something damaged, you can have it replaced at the store you bought the kit from. However, it is best to run through the content of the kit and check for quality at the time you make the purchase.

If you are a beginner, do not think too much about basic construction from sourced raw material. If you are a professional, however, you have the options open to you.

How to Use a Telescope - Comprehensive Telescope Kits

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Celestron 21068 SkyScout Scope 90mm Telescope with Sky Scout Mounting Braket

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90mm (3.5”) diameter refractor, 660mm focal length (f/7), altazimuth mount with pan handle and built-in clutch, 6x30 finderscope, 40mm eyepiece (16.5x) - 1.25”, 10mm eyepiece (66x) - 1.25”, adjustable SkyScout mounting bracket, erect image fully coated optics, adjustable height stainless steel leg tripod with accessory tray, “The Sky Level 1” CD-ROM

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Choosing the Best Telescope For Kids - Beginner Telescope Buyers Tips

!: Choosing the Best Telescope For Kids - Beginner Telescope Buyers Tips

One of the best gifts that you can give a child is their first telescope. Nothing beats the excitement of peering out in to space for the first time. The first close glimpse of the moon and all of it's craters and the sight of Saturn's rings all amaze children and adults alike.

Choosing a telescope for a child is tricky. You want to ensure that you select one of quality. Toy stores carry a selection of telescopes but the sad fact is that most of them are junk that barely work. A little research before you buy can make all of the difference. There are affordable high quality scopes available that are designed to be easy to use for first time star gazers. On average, you can expect to find a quality scope for - 0 on sale or a bit more at retail. Researching and price comparing on the web can score you even better deals.

The most important part of a telescope is the lens. Most starter scopes have what is known as a "refracting lens". These lenses magnify objects by using a convex bent glass. They are adjustable for focus and field of vision. This allows the user to point the scope at an object in space and focus the scope on the object.

If you are shopping for a telescope for beginners, you may also wish to consider giving a guide to the stars and planets. There are many good books for children and young adults that will help them understand more about what they are seeing through the scope.

The first thing that most people want to view with a telescope is the moon. After examining Earth's own satellite and all of it's craters, the next stop is likely the ringed Saturn or even the big dipper and Little Dipper. The Gemini Twins and Orion also make for exciting viewing with a new backyard telescope.

There is no better way to encourage a love of learning than the gift of a hands on experience. When you shop for a beginners telescope you are doing more than giving a simple gift. You are unlocking curiosity and an interest in science that will stay with a child for years to come. Who knows, you could even inspire the next generation of astronauts!

Choosing the Best Telescope For Kids - Beginner Telescope Buyers Tips

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How to Make an Upside Down Telescope : Upside Down Telescope: Glue Magnifying Glass to 1st Tube

!: How to Make an Upside Down Telescope : Upside Down Telescope: Glue Magnifying Glass to 1st Tube

Use rubber cement to glue the magnifying glass to the first tube. Learn how to make an upside down telescope in thisfree crafts video. Expert: Gary Zier Bio: Gary Zier, originally from Florida, is a systems administrator with 10 years of computer networking experience and an expertise in conditional access security systems. Filmmaker: Gary Zier

How to Make an Upside Down Telescope : Upside Down Telescope: Glue Magnifying Glass to 1st Tube

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A Beginner's Guide to Astronomy

!: A Beginner's Guide to Astronomy

Astronomy is both a science and a hobby and it's a subject that is accessible to almost everyone.   Indeed, humans have gazed at the night sky with a sense of wonder and fascination for millennia and the starry skies have inspired poetry and philosophy as well as science and exploration.  It's a hobby the whole family can enjoy and anyone can join millions of others who enjoy this subject just by stepping outside on a cloudless night and looking up at the sky.

You don't even need a telescope to start enjoying astronomy.  You can pick out major constellations, the moon, and several planets using the naked eye or with a pair of binoculars that you might already possess for other purposes.  However, part of the fun of astronomy is the use of the telescopes and they vary from simple designs that cost less than £100 to complex pieces of equipment that cost thousands.

The best way to start your exploration of the cosmos is to pick an evening when the weather is calm and the sky is clear of clouds.  You can start simply by looking out of your window or by standing in your garden, but the more sky you can see the more scope you have for exploration, so if you can go to anywhere that is open land then so much the better.  Also, being out in the country and away from street lights will reduce the amount of light pollution that so hinders the amateur astronomer.

Take a star chart or a beginner's guide to astronomy book.  You can download and print start charts from many astronomy websites and your local library will probably stock many such books.  Of course you could simply buy your own book and start your astronomy library.  Over time it's likely to grow into quite a collection.

Make sure you're dressed appropriately and that you are warm and comfortable.  Some of the clearest nights for star gazing in Europe for example are during the winter.  The air is much clearer and the visibility is so much better as a consequence.  Give your eyes time to adjust to the darkness and if you do take a torch in order to refer to a book or star chart then use a dim setting so that the light from the touch doesn't spoil your night time vision.  If you're fortunate enough to live in a remote part of the countryside, near a desert or up a mountain then you have a distinct advantage over town dwelling astronomers!

If you're budget does stretch to some equipment then the two basics are; a pair of binoculars and a telescope.  The binoculars can be used for a quick check of an intended target area of the sky before you change the position of your telescope.  Your first telescope might be one made by companies like Celestron, Meade, Skywatcher, or Orion. All these companies are recognized experts in their field and provide a range of telescopes for both amateur astronomers and professional star gazers. 

When you start searching for a suitable telescope you'll probably come across references to refractor telescopes and reflector telescopes.  To learn about the differences between these two types and more information, astronomy guides, and telescope reviews visit the two sites listed below.

A Beginner's Guide to Astronomy

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Meade NG-70 70mm/2.8 inch Altazimuth-Mount Achromatic Refractor Telescope

Some of the worldâ?TMs top astronomers got started with a telescope just like this one â?" and so will you. A quality refracting telescope for land or sky viewing. It's perfect for observing the Moon, planets and land objects like mountains, trees and wildlife.

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Aperture: 70mm(2.8-Inch). Focal Length: 700mm. Focal Ratio: f/10. The world’s top astronomers got started with a telescope just like this one — and so will you. A quality refracting telescope for land or sky viewing. Perfect for observing Saturn, Jupiter, the Moon and land objects. A first look at the rings of Saturn or the craters of the Moon can inspire a lifetime of exploration. Go to any star party anywhere in the world and you’ll see more Meade telescopes than any other. Altazimuth Mount w/Slow Motion Controls, Steel Tripod w/ Accy Tray, Red Dot Viewfinder, Diagonal Mirror, Two Eyepieces (MH9mm, MH25mm), Astronomical Software & Instructional DVD.

• Refracting Telescope Perfect For Land Or Sky Viewing
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Celestron 127EQ PowerSeeker Telescope

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21049 With Free Motor Drive: CES1071 Features: -Telescope. -PowerSeeker collection. -Color: Black. -Material: Aluminum. -127 mm (5'') Newtonian reflector. -3x Barlow lens triples the magnifying power of each eyepiece. -Quick and easy no-tool setup. -Slow motion controls for smooth tracking. -Erect image optics - ideal for terrestrial and astronomical use. -Fully coated glass optical components with high transmission coatings. -Enhanced image brightness and clarity. -Accessory tray for convenient storage of accessories. -''The Sky'' level 1 planetarium software with 10,000 object database. -Dimensions: 11'' H x 17'' W x 33'' D.

• 3x Barlow Lens
• German Equatorial Mount
• 127mm Aperture
• 1000mm Focal Length
• Comes with aluminum tripod and accessory tray

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A Telescope Buying Guide For Beginners

!: A Telescope Buying Guide For Beginners

Buying a telescope is a daunting task for a newcomer. It all depends on your astronomy goals and careers. There is no perfect one which suits all observers in all conditions. You have to look for the features you want in your telescope and select the best one's according to your requirement.

Selecting the proper type
The refractor type telescopes best suit for watching moon and major planets. Refractor telescopes are long & thin, and known for their sharp, detailed and contrasty images. They collect light through multi-element lenses. If you are just a starter then a small, quality achromatic refractor of 60 to 90 mm aperture would be a good one. The best thing about a refractor telescope is that they are inexpensive, portable and almost maintenance free. A refractor telescope is also useful when you will be mostly observing from city or the surrounding areas where the night skies are lightly polluted. Reflector telescopes are also known as Newtonian telescopes. They are good for planetary as well as deep-sky viewing. However Newtonian telescopes are more fragile and need more maintenance than others. These telescopes collect light with a curved, concave mirror and with the help of their large apertures, they show fine, highly-resolved images. The reflector scopes are not suitable for terrestrial viewing because they produce an upside-down image. Catadioptrics use both lenses and mirrors to collect and focus the incoming light. They are also called compound telescopes. Catadioptrics scopes are considered the most versatile telescopes and gives great all-around performance. They use a large aperture in very compact tubes. They show magnificent images of the moon, planets and faint deep-sky objects, when viewed in dark skies away from urban areas. These scopes are best suited for astrophotography. Compared to other two, these scopes have a wide range of accessories available. They can be entirely computer controlled.
Factors affecting the performance of a telescope

Aperture: Telescopes collect light from distant objects and focus it to produce images. The light collecting capacity of a telescope is the most important feature. It is the aperture of scope (diameter of mirror or lens) that is responsible for gathering light. Larger the aperture, the more light gathered, the more you'll see. Telescope Mounts: There are three basic mounts for telescopes altazimuth, Dobsonian, or equatorial. Altazimuth is the simplest type of mount, providing up-down, left-right motions. It is mainly recommended for terrestrial viewing and casual stargazing. The Dobsonian mount was basically designed for easy maneuvering of large reflectors of more than six inches. It is a boxy altaz-type mount sitting close to the ground. Equatorial mounts are designed for the purpose of astronomical viewing. These mounts are more expensive and complicated than the altazimuth mounts. With the help of these type of mounts users can track or follow the motion of celestial objects through the sky with a single manual hand control. Magnification: Magnification should never top the priority for buying a telescope. The quality if image degrades with magnification. Practically 300X is maximum magnification for good quality images. Telescope's magnification is also known as its power and it is adjusted by changing eyepieces. Ideally there should have been three eyepieces for the magnification of a scope: one low, one medium and one high. Lower powers of 30 - 50X are recommended for observing galaxies, star clusters and nebulae as they are spread over a wide area of sky. For observing the rings of Saturn, Jupiter, studying craters and valleys of the Moon's surface medium power of 80 - 100X are advised. Higher powers of 150 - 200X allow the astronomers to observe mountain peaks and fine lunar detail, the surface features of Mars.

A Telescope Buying Guide For Beginners

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Should I Buy a Reflecting Telescope Or a Refracting Telescope?

!: Should I Buy a Reflecting Telescope Or a Refracting Telescope?

Understanding Reflecting Telescopes and Refracting Telescopes

Telescopes are great tools for looking at objects in the night sky and the key part of any telescope is the objective. The objective is what allows light into the telescope enabling you to see the images from the sky. Telescopes with bigger objectives allow more light in and that means a clearer and crisper image for the viewer.

The two main types of telescopes are reflecting telescopes and refracting telescopes. These are similar in design except for the manner in which they collect light.

Differences Between Refracting and Reflecting Telescopes

The objective in refracting telescopes is a piece of glass that is located near the front of the telescope. The objective takes the light that it gathers and refracts, or bends, it to send it to the eyepiece, which magnifies the image. Refracting telescope technology is used in other equipment like binoculars, rifle scopes and spyglasses.

Reflecting telescopes are different because the objective is a mirror at the distal end of the telescope instead of a glass lens at the front. The mirror in a reflecting telescope has a concave shape, a bowl like shape, which allows it to capture the light in the center of the mirror and send it as one stream of light towards the eyepiece so the image can be seen.

Benefits of Using a Reflecting Telescope

Reflecting telescopes are preferred by many for several reasons. One reason is that there is less distortion with a reflecting telescope than with a refracting telescope since the mirror is able to gather and reflect all wavelengths of color consistently. The use of the mirrors instead of glass lenses makes reflecting telescopes more affordable than refracting telescopes.

When mirrors are used instead of glass lenses, the telescope can be enlarged to allow for the supports for the mirror to be located on the posterior of the telescope. The larger the mirror that is used, the more light that is reflected and the better and clearer the image will be.

Disadvantages of the Reflecting Telescope

Reflecting telescopes can have their own issues and problems as well. One problem can be the size of reflecting telescopes. As larger and larger mirrors are used, the telescopes have to grow in size to fit the mirrors inside. While you get better results with the larger reflecting telescopes, they are not very portable and it can be difficult to find a place to keep them when you are not using them.

Another problem is that reflecting telescopes may need to have the mirrors adjusted from time to time to keep them working perfectly and to maximize the light that is captured.

Should I Buy a Reflecting Telescope Or a Refracting Telescope?

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selecting a Telescope

A telescope is a considerable tool used in exploring objects throughout the universe. They precisely enable us to see the invisible! Telescopes are also a time machine, allowing us to peer into the past. The word telescope was derived from the roots tele, which means "distant," and skopos, which means "to see." So a telescope is an instrument that allows us to see distant objects, such as the Moon, planets, stars and star clusters, nebulae and remote galaxies. 2009 marked the 400th anniversary of the first telescope pointed to the night sky by the preeminent mathematician, scientist and astronomer Galileo Galilei. Modern telescopes are far excellent in optical quality than these earlier instruments. Just like the pupil of our eye gets larger in the dark to let in more light, the larger the telescope's optics the more faint light from distant stars and galaxies appear brighter, allowing us to see additional and deeper into space. A second benefit with a larger telescope is its quality to decree smaller and finer details on extended objects like the Moon and planets, and permit the clear disunion of close duplicate stars.

Perhaps you are curious in purchasing a new telescope. Basically, there are two types of telescopes to select from. A refractor uses lenses to accumulate and bend light as a cone to a focus. Binoculars are merely two refractor telescopes mounted side by side. Reflectors use a set of mirrors to accumulate light, which is brought to a focus by virtue of a concave curve (inward like the scoop of a spoon) on the front surface of the former (largest) mirror. Light enters a mostly hollow tube and reaches the former mirror at the bottom. As the reflected cone of light (due to the curve) travels up the tube, it is intercepted by a smaller flat (plane) diagonal mirror set at a 45 degree angle with respect to the light path. 45 + 45 = 90 degrees, so the light is sent surface the tube at a right angle for the observer to study a focused image straight through an eyepiece (ocular). This is a excellent Newtonian reflector, named after another preeminent scientist, Isaac Newton who created its design. The length in the middle of the former objective (lens or mirror) and the eyepiece where the focal point is reached is called focal length. This is considered by how steep or shallow the curve in the glass is. A greater curve will focus light in a short distance, so the telescope tube will be correspondingly shorter as well. A shallow curve will extend this distance, calling for a longer tube assembly. Many reflectors are referred to as combination telescopes because of their short, stubby tubes. This cassegrain manufacture uses a steeply curved former mirror and a convex (curved outward like a ball) secondary mirror mounted near the top town of the tube. When light reflects off of this convex curved mirror, the steeply converging (come together) rays of light are made to diverge (spread apart), thereby effectively extending the focus additional so the light path will continue straight through a central hole in the former mirror (like a donut) and focus surface the rear of the tube assembly. Many cassegrains use a extra glass plate at the front of the tube to "correct" the light path from different problems possible in this design. They may be called a Schmidt Cassegrain or a Maksutov.

Telescope

In order to point the telescope's optical tube assembly at a single location in the night sky, it will need a mounting. There are basically two types of telescope mountings. An altazimuth mounting has two axes at right angles to each other where one axis allows the telescope to pivot up and down (altitude) and the other axis left and right (azimuth). It's the simpler of the two. The other type is called an equatorial mounting. It also uses two axes at right angles to each other, but one of them, called the polar axis, is set in line with the earth's axis of rotation. Once accomplished, you plainly set the declination (north-south) axis and right ascension (east-west) on the polar axis to point at a single object, then just rotate westward on the polar axis to track an object in the sky as it appears to move due to the earth's rotation. Setting circles may be attached to both axes for locating objects using their celestial coordinates (right ascension and declination). If the polar axis has a clock drive motor, it will automatically guide this tracking at the same rate the earth is turning. Many commercially-made telescopes now come with Computer controlled guiding systems and a push-button hand paddle known as "Go-to"capability. This is great for taking pictures straight through the telescope, known as astrophotography. If not, hand knobs with worm and gears are typically used to manually guide the instrument. Whether way, the mounting is supported typically on a pedestal or tripod. Some common types of equatorial mountings include the German, fork, English yoke, and others.

selecting a Telescope

Many Accessories are available or required to properly operate a telescope. A finder is Whether a small refractor telescope with a wide field of view and crosshairs or a laser device used to point the main telescope accurately and "find" the object sought for viewing. Eyepieces come in different types and sizes. Magnification is calculated by dividing the focal length of the telescope by the focal length of the eyepiece. For example, a telescope with focal length 900mm using an eyepiece with a focal length of 20mm will yield a magnification of 45X (900/20=45). another way to say this is 45 power, which means that objects will appear 45 times larger in diameter than with the unaided eye. A common misconception is that magnification determines how considerable a telescope is. Since magnification can be adjusted using different focal length eyepieces for any telescope, the telescope's true "power" is considered by its size (aperture or diameter). A Barlow lens can amplify the magnification of any given eyepiece by effectively extending the focal length of the telescope. Commonly, they duplicate or triple the magnification of the eyepiece used, so in our former example we now have 90X or 135X with the same eyepiece. Filters are typically threaded to screw into the barrels of eyepieces and come in different colors to heighten definite features of planetary detail. Lunar filters work well to cut glare and growth variation on the Moon. Solar filters block all the harmful rays allowing safe viewing of sunspots. Other filters are used for reducing scattered light as in city areas permitting views of faint extended objects such as nebulae. A star diagonal prism or mirror changes the position of the eyepiece by creating a right angle to the normal light path. This works well with refractors or cassegrain reflectors, especially when viewing objects high overhead. Dew caps extend the tubes length preventing dew from forming on the surface of lenses or corrector plates.

What advantages/disadvantages exist for Whether type telescope design? Well, if you want as large and considerable a telescope as feasible within your budget, you must reconsider Whether you intend to place it in the car to transport it to a dark sky site or you intend to permanently mount it in your back yard or observatory. Again, a long-focus telescope will have a longer tube, maybe prohibiting it from fitting in the car easily. A short-focus telescope, sometimes called richest field telescopes or Rft's, are great for seeing at wider fields of view in the sky, capturing beautiful views of rich star clusters and several objects in relation to each other simultaneously. Long-focus telescopes are regularly excellent for examining fine details on planets and splitting close duplicate stars. The trade-off is loss of portability. Refractors have an optical benefit over reflectors in that they don't suffer diffraction (light scattered or bent around the edge of a barrier) caused by the central obstruction to the incoming light by the diagonal or secondary mirror. If the lens is of high optical quality, the refractor will typically outperform an equal sized reflector in producing sharply-defined images. Refractors are ordinarily made with a long focus, making the tube length a concern. Also, refractors are far more high-priced than reflectors of equal size. Since the size of the telescope's lens or mirror is a function of its light-gathering power, the reflector is adored unabridged when larger sizes are desired.

How about some tips for enhancing your observational feel straight through a telescope? When starting any observing session, all the time start with the longest focal length eyepiece and the widest field of view to help spot objects more precisely in the telescope. plainly align the telescope by sighting along the top of the tube and pointing it in the normal direction of the object in the sky. If you have an equatorial mounting with setting circles, you can look up the celestial coordinates of the object and adjust accordingly. Of course, if you have Go to quality and have done a 2 or 3 star alignment, you may plainly push a button on the hand paddle. Whether way, your next step is to spot the object in the finder and align so it appears in the town of the crosshairs (like a gun sight). If your finder is optically aligned with the main telescope, the object should appear in the field of view of the eyepiece. When observing faint objects, try using a technique known as averted vision. Instead of seeing directly at an object, look off to the side a bit and see if you consideration that the object appears brighter. That's because that part of your eye's retina has more cones, which are sensitive to light and dark. Become well-known with the night sky by using a planisphere, ordinarily referred to as a star finder. Get to know the brightest stars and seasonal constellations by name. Attend a planetarium show to learn their relative positions in the sky. It takes time, but the universe is a very sick person place, one that doesn't mind waiting while we take the first steps towards understanding.

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selecting a Riflescope: the Most strict Telescopic Scope for your Rifle

choosing a riflescope is not easy, and choosing the best telescopic scope for your rifle has become a science rather than a matter of preference. There are any features of a riflescope that influence both its accuracy and its suitability for your needs, and these can be split into two general headings:  features relating to accuracy and those relating to construction.

Telescope

selecting a Riflescope: the Most strict Telescopic Scope for your Rifle

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From EsoCast. An exoplanet in orbit around a star, the Milky Way came from another galaxy by a team of European astronomers have discovered. The Jupiter-like planets is particularly unusual because it orbits a star near the end of his life and could be swallowed some of his own, with tantalizing clues to the fate of our planetary system in the distant future. Astronomers have discovered about 500 planets around stars in our cosmic neighborhood, but no one discovered outside our own Milky Waywas confirmed. But now, a planet discovered with a weight of at least 1.25 times Jupiter's star was surrounded by extra-galactic origin, even if the star is now in our galaxy. The star, known as HIP 13044, is located about 2000 light years from Earth and is part of the current so-called Helmi. This stream of stars was originally swallowed a dwarf galaxy, the Milky Way was an act of galactic cannibalism 6-9000000000 years.Astronomers discovered the planet in search of small detectors of oscillation of the gravitational pull of orbiting companion star. For these precise observations, the team uses a high-resolution spectrograph FEROS, called on the ESO 2.2-meter telescope at La Silla in Chile planet, HIP 13044 b, is also one of the few known exoplanet host star increases greatly its size to survive after the exhaustion of hydrogen fuel cells to produce at their core have - RedGiant ...

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The 3 Basic Types of Telescopes

Since the arrival of modern astronomy, scientists have come along a long way to build high powered telescopes. The earliest history of the modern telescope can be traced back to 16th century Netherlands. modern day telescopes come in dissimilar types, sizes and shapes. The cost linked with each telescope differs widely and depends on the task it will be used for.

Normally, astronomers agree that there are only two main types of telescopes. They are refractive telescopes and reflective telescopes.

Telescope

As the name suggests, refractive telescopes constitute a lens which gathers the beam of light and converge it on the surface of the mirror. On the other side of the spectrum, reflective telescopes disperse the beam of light that is spread across the surface of the mirror. Also these two major types, there is also a pretty well known type, called a mixture telescope. This type in effect combines the qualities of the reflective and refractive telescopes. Combining these qualities may not necessarily mean that a mixture telescope will be more effective. In theory, all of the three types have their advantages and drawbacks.

The 3 Basic Types of Telescopes

Refractive types are the ones that come in mind when thinking about the telescopes. These are open-ended from the far end, which than slants towards a finished end on the other side. A picture of this type is deeply embedded in our conscience as we have seen it numerous times in our text books. You always find this type in your neighborhood store. The main benefit of the refractive telescope is that they are very easy to maintain. The tube is finished from both the ends which mean that the glass surface inside the telescope is protected from the surface environment such as heat, dust and winds. The main disadvantage is that it suffers from chromatic aberration which is a defect that allows the light to form a rainbow colse to an image. This is partly the guess that refractive telescopes are not convenient to view distant objects as the mirror may produce light spectrum colse to a darker image.

On the contrary, reflective telescopes are more convenient to contemplate distant plants and galaxies. These are the giant machines that we see in famed gargantuan laboratories colse to the world. Because of the advantages of the reflective surface, this type is now available for use in homes and smaller labs. Usually, a reflective telescope acts a light bucket where it traps the beam of oncoming light. When the beam is trapped, viewers can than adjust the objective mirror at the end to make objects look much bigger than their general size. The main disadvantage is to claim the telescope as the mirror and linked material is exposed to the surface environment. To most viewers, it is not a major factor influencing their use of the telescope, as the maintenance for smaller telescopes is not a question large adequate to outweigh its huge advantages.

The third type, a mixture telescope is commercially available for use and it might be a good starter telescope for novice and beginners alike. It combines the qualities of the refractor and reflector to supply a good magnification and view. This being said, mixture telescopes are not regularly used by advanced astronomers. Apart form the above types, there are more advanced versions along with radio and x-ray telescopes, among others.

For a beginner, it is recommend to look for a pro telescope outlet and buy after a getting a pro advice from an expert. Be aware of the neighborhood stores with telescopes. It is not a good idea to buy your first telescope from a local shop as the telescopes might not be of the top quality. This is due to the large scale output of telescopes that has led to inferior material capability which in turn poses a requisite malfunctioning risk. A pro outlet always provides warranty and guarantees to fix any problems. The cost of a beginner telescope varies from two hundred to twenty five hundred dollars. It is recommended to buy a telescope above four hundred dollars, for the reasons stated above.

The 3 Basic Types of TelescopesMonster Star - July 2010 Tube. Duration : 1.57 Mins.

has been found, this is the biggest star ever R136a1. Read more ... They belong to the true monsters of the room - huge stars, the size and brightness by far what many scientists thought it was still possible. "Planets may take longer to form the stars live and die company," said Professor Paul Crowther from Sheffield University, UK One of the objects, known simply as R136a1 is the largest ever found. Viewed today, the star about 265 times the mass of our sun, but the latest models of worksuggests that the birth could have been even greater. Perhaps, as far as 320 times that of the sun, says Professor Paul Crowther from Sheffield University, UK. The stars have been identified by the team of Crowther using a combination of new observations on the Very Large Telescope in Chile and set the data previously collected with the Hubble Space Telescope.

Keywords: Stars, Moon, Sky, Sun, Hubble Telescope

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Who certainly Invented the Telescope?

For most of us, we understanding that Galileo Galilei was the originator of telescope because this is what our science teachers have told us and this is what we have read in our science books. But the truth is, we are wrong because even if Galilei was one of the greatest astronomers this planet has ever produced, he was not the one who invented the telescope, so who invented the telescope is a inquire that has been plaguing our mind.

The acknowledge to inquire on who invented the telescope is Hans Lipperhey. Yes he was the one who invented the telescope and his invention has greatly contributed to world of astronomy and science as whole. The telescope has changed the landscape of many things in our world. The telescope is used not only in discovering the world covering our planet such as the stars, planets and other ample objects but even in our daily lives. For instance, a telescope is used in aiding navigation and transportation such as a vessel and it is used even in the military field, as a tool of protecting and defending one's territory.

Telescope

Now going back to the inquire on who invented the telescope, this guy named Han Lipperhey was the cause for a big convert in our world and he was born in Germany and built his home in Netherlands. Married in 1954 and a population of the Netherlands I 1602, he was a trader by professions. At that time when the Italians came up with glass-techniques that was introduced to the Netherlands, such improvement has brought new ideas and progress and population then began to try out dissimilar ways of creating lenses. It was in 1608 that telescopes were invented.

Who certainly Invented the Telescope?

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The truth was there was not only one man who invented the telescope because the invention can be given to three persons, Hans Lippershey and Zacharis Janssen and Jacob Metius. After the invention, telescopes were then produced in numbers and were spread over Europe and ultimately in the Americas and in Asia. The early telescopes can only increase the size of an object thrice its original size. But the present telescopes can view object that are light years away and can see even the tiny object and magnify them.

When did Galilei enter into the picture? He literally did not develop the telescope but added some things because he put a convex and concave lens in a tube so what he did was an improved version of the original one. So Galilei was not literally the one who invented the telescope.
Now here is the twist to the story because there was a rumor that circulated that it was neither Galilei nor Hans who invented. It was the children of Hans who found out about the telescope while they were playing. But that side of the story on who invented the telescope was not yet proven. So at this point, we have to decide with the more believable version and that is, it was Hans and two others who invented the telescope.

Who certainly Invented the Telescope?How to Use Telescopes: Using Newtonian Telescopes Video Clips. Duration : 4.07 Mins.

Telescopes that the design of Sir Isaac Newton were minted that follow Newtonian telescopes and find appropriate. Studio Newtonian astronomical observatory with a director in this free video. Expert: Rocky Alvey and Billy Teets Bio: Rocky Alvey is the deputy director of the Vanderbilt Dyer Observatory and has been involved in astronomy since 1969. Filmmaker: Dimitri LaBarge

Tags: telescopes, science, nature, astronomy, star charts, sky charts

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Telescope-Which One is Right for You?

A telescope can be a remarkable tool for those who have all the time been fascinated by the night sky. With the right model you may be able to see the planets, stars, and the moon with greater clarity than you had ever imagined before. But, how will you know which model is right for you? You can select from a reflective or a refractive model and you must also think about the power and magnification of the telescope that will be most useful along with the portability, the mount and the cost.

1. What is the contrast in the middle of a reflective and a refractive scope? A reflective scope uses mirrors to focus the image and the light while a refractive scope uses curved glass lenses to focus the light and the image. generally the reflector telescope is best for deep sky viewing and the refractor is best for lunar and planetary viewing. You can also find a combination telescope which uses both glass and mirrors which is best for normal viewing.

Telescope

2. If you think that the greater the power and magnification on a scope, the best it is, you would be mistaken. Generally, the best and clearest images are seen on lower magnification. If you want greater magnification you can all the time buy distinct lenses to supplement your primary lens. The main notice should be the aperture. The aperture is how much light the telescope will let in and be able to focus and this should be one of your main considerations.

Telescope-Which One is Right for You?

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3. For those who want to take their telescope with them when they go out into the woods hiking or camping, portability should be an leading consideration-especially if you will also be taking a mount and a tripod. If you will simply be setting it up at home, these will not be such leading factors.

4. You can select from one of a few distinct types of mounts for your telescope-here are two of the most popular: An altazimuth mount allows the scope to move horizontally and vertically and is excellent for beginners. The equatorial mount is favored by professional astronomers and allows the scope to move perpendicularly along the line of the equator to result the movement of stars and other objects over the sky.

5. Your funds should be one of the most leading considerations when choosing a telescope. They range in price anywhere from under fifty dollars to thousands. As a beginner, you will probably want to stay at the lower end of the price spectrum, but think getting a scope that will allow you to add pieces as you get more experienced and your interest grows.

You can find a lot of facts to help you to select your first telescope online. facts about how scopes work, what all of the scientific jargon means, and also the best places to buy a scope. Before you make this purchase, educate yourself so that you can feel sure and comfortable that you have made a good choice and you will be able to "focus" your energy on the night sky.

Telescope-Which One is Right for You?How to Buy a Telescope: Refractor Telescope Buying Guide Tube. Duration : 3.40 Mins.

A refractor is the most common type of telescope. Discover the difference between refracting and reflecting telescopes in this free video on home astronomy from a telescope seller. Expert: Jesse Sturgeon Bio: Jesse Sturgeon has served as a sales and service representative for Anacortes Telescope in Anacortes, Washington for several years. He enjoys introducing people to science and art of astronomy. Filmmaker: Curtis Enlow

Keywords: astronomy, science, telescopes, night sky, binoculars

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