Celestron PowerSeeker 80EQ Telescope

!±8±Celestron PowerSeeker 80EQ Telescope

Brand : Celestron
Rate :
Price : $126.00
Post Date : Oct 26, 2011 19:00:27
Usually ships in 1-2 business days

Celestron PowerSeeker 80EQ 45 - 225X Refractor Telescope opens up the wonders of the universe to the aspiring astronomer. Amateur astronomy is a great hobby you can enjoy year-round, and Celestron's PowerSeeker Telescopes are the ideal choice for affordable stargazing enjoyment! PowerSeeker Scopes are quick and easy to set up, even for the novice... no tools required! Their sturdy Equatorial mounts are perfect for tracking objects across the night sky, meaning these Telescopes shine for moon- and planet-watching. All Celestron PowerSeekers include a tripod, full range of eyepieces, plus a 3X barlow lens. Specs: 80 mm aperture size; Includes 20 mm eyepiece for 45X magnification, 4 mm eyepiece for 225X, and a 3X barlow lens that triples the magnification power of each eyepiece; Refractor optical design; Fully-coated glass optics with high-transmission coatings for enhanced brightness and clarity; Sturdy German Equatorial mount, perfect for tracking objects across the night sky; 1.25" erect image diagonal, ideal for terrestrial and astronomical viewing; Comes with The Sky X Planetarium software, featuring a 10,000 object database to get you started; Focal length: 900 mm; Limiting stellar magnitude: 12; Resolution (Rayleigh): 1.74 arcsec; Resolution (Dawes): 1.45 arcsec; Light-gathering power: 131X; Angular F.O.V. is 1.2 degrees. Linear F.O.V. is 61' 5x24 mm finderscope; Weighs 19 lbs. Includes aluminum tripod. Order yours today! Celestron PowerSeeker 80EQ 45X-225X Refractor Telescope

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Choosing the Best Telescope For Kids - Beginner Telescope Buyers Tips

!±8± 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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Orion Observer 70mm Equatorial Refractor Telescope

!±8± Orion Observer 70mm Equatorial Refractor Telescope

Brand : Orion | Rate : | Price : $169.99
Post Date : Oct 17, 2011 19:17:04 | Usually ships in 1-2 business days

This tried-and-true refractor goes the extra distance in introducing the novice to the wonders of the night sky. The Observer 70 features a 70mm fully anti-reflection coated achromatic objective lens, which provides 36% more light-gathering ability than a 60mm. Its 700mm focal length (f/10) will show you the stark beauty of the lunar surface, Saturn's rings, Jupiter's atmospheric belts, or the billowy clouds of the Orion Nebula. The included EQ-1 equatorial mount comes equipped with dual slow-motion controls for manual star tracking and adjustable aluminum tripod. Includes an EZ Finder II finder scope to help you zero in on your celestial targets, two eyepieces - 25mm (1.25") and 10mm (1.25") - and 90-deg star diagonal. One year limited warranty.

• A great entry-level refractor telescope at a very affordable price
• Reveals detailed views of the Moon and bright planets such as Jupiter and Saturn
• 70mm (2.75") aperture and 700mm focal length provides great views of bright night-sky objects
• Includes sturdy tripod and equatorial (EQ) mount for convenient manual slow-motion tracking of celestial objects
• Includes two eyepieces, finder scope, focuser, 90-degree mirror diagonal for comfortable viewing
• Free Starry Night astronomy software and DVD, and more!

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Who Really Invented the Telescope?

!±8± Who Really Invented the Telescope?

For most of us, we thought that Galileo Galilei was the inventor of the telescope, because it is what our science teacher told us, and that is what we read in our science books. But the truth is that they are wrong, because even if Galileo is one of the greatest astronomers of this planet has ever produced, was not he who invented the telescope, so they invented the telescope is a question that has plagued our minds .

The answer to the question of who invented the telescopeHans is Lipperhey. Yes, he was the one who invented the telescope and its invention has contributed significantly to the world of astronomy and science as a whole. The telescope has changed the landscape of many things in our world. The telescope is not alone in discovering the world beyond our planet, such as stars, planets and other astronomical objects, but also used in our daily lives. For example, a telescope with the support of navigation and transport, as a vessel used, and is also used inmilitary as an instrument of protection and defense of territories.

Now back to the question of who invented the telescope, this guy named Han Lipperhey the cause of a great change in our world, and was born in Germany and built his home in Holland. Married in 1954 and a citizen of The Netherlands 1602, was a merchant of professions. At the time when the Italians came up with techniques of glass, which was introduced in the Netherlands, such a development has brought newIdeas and progress, and then people began to try different ways to create lenses. It was in 1608 that the telescopes were invented.

The truth was that there was only one person who invented the telescope, since the invention of three people, and Hans Janssen and Jacob Metius Lippershey Zacharis can be given. After the invention of the telescope were then produced in quantities and were distributed throughout Europe and then America and Asia. The first telescopes can only increasesize 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 actually did not invent 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 really 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 settle with the more believable version and that is, it was Hans and two others who invented the telescope.

Who Really Invented the Telescope?

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Tasco Spacestation 60x700mm Refractor AZ with Variable Led Red Dot Finderscope Telescope

!±8± Tasco Spacestation 60x700mm Refractor AZ with Variable Led Red Dot Finderscope Telescope

Brand : Tasco | Rate : | Price : $54.84
Post Date : Oct 11, 2011 19:00:35 | Usually ships in 1-2 business days

Put on your pressure suit and commence docking procedures, because we have a Spacestation powerful enough to take you to the moon and way, way beyond. Se the star like you've never seen before with a view from an all-new Tasco Spacestation telescope featuring a cosmically inspired new design. Its variable LED electronic REd Dot Finderscope takes you to to visit your favorite constellation in a flash by quickly finding any object in the sky. Partially pre-assembled and super -sturdy, these Spacestations come ready for blast off, so let the countdown begin. For those who want to experience astronomy but not get too committed, the Tasco Spacestation 60AZ may be the perfect scope for the first time user or astronomy novice. Accessories include Tasco SkyWatch CD-Rom, 3x Barlow lens, Moon Map, Moon Filter, Erecting Lens.

• Single Fork Arm Altazimuth Mount
• Red Dot Starpointer Finderscope
• Adjustable Aluminum tripod

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Messier R-80 80/900 EQ Maksutov-Newtonian Achromatic Refractor

!±8±Messier R-80 80/900 EQ Maksutov-Newtonian Achromatic Refractor

Brand : Bresser
Rate :
Price : $299.00
Post Date : Oct 09, 2011 16:45:05
Usually ships in 24 hours

Anyone looking for a good starter telescope should consider the Messier R-80 as one of the favorite choices. The Messier R-80 has 77% more light-gathering power than a standard 60mm beginner scope. The brighter images make it easier to detect subtle details and increases the joy during observations. This telescope will outperform those standard scopes without burdening the observer with a large additional weight. The craters of the moon will look magnificent in the Messier R-80, and even the rings of Saturn can be seen from a distance of 1.4 billion km!

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Meade 20218 NG-70SM 70MM Altazimuth Refractor Telescope

!±8±Meade 20218 NG-70SM 70MM Altazimuth Refractor Telescope

Brand : Meade
Rate :
Price : $63.52
Post Date : Oct 07, 2011 06:54:38
Usually ships in 1-2 business days

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.

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Shining light on Star Refractor

!±8± Shining light on Star Refractor

Although Galileo has been historically credited with the invention of the refracting telescope in early 1600, should claim to three ophthalmologists, whose work has helped to be taken for his telescope in the development of the theory of refraction. Refractors are very simple and have only two main components - the objective is called convex lens and a concave lens, where the eyepiece.

The convex lens is at the end of the telescope and is used to bend or breakLight enters the telescope and turn it into a single beam of light. Then the image has come to be seen in the opposite direction on the concave lens, the image is reversed. Refractive telescopes allows the viewer to see a very bright and clear image.

Galileo invented the refracting telescope is currently used by many people, but the drawback is the small field of view it offers. A well known is the refracting telescope in California, at the Chabot Space and Science Centre. The centeractually has two refractors - an eight-inch refractor and a 21-inch refractor. Telescopes are very simple, and this can lead to spherical aberrations. One way, these aberrations will be treated with a pair of lenses (a convex lens and an apartment) in order to create an achromatic lens.

Refractors and color

One of the most common problems with a refractor is the separation of light that occurs when light is bent. If thishappens, is called chromatic aberration, and can be solved with the use of an achromat.

One of the main problems with the refracting lens becomes large enough, without imperfections, which are collected as the light through the lens. There are 41-inch lenses, but they are useless. Refractive telescopes ends are not usually used by professional astronomers around the issue of light to focus on a place at the same time.

Break-Telescopes are very popular among astronomers and novice observers are used throughout the world. It 'a good choice for beginners telescope surrounded by the lens, the image look less wobbly and doing less exercise than reflecting telescopes, which makes the image to the eye of the beholder to send in a mirror. The process of reflected light from the mirror first and then the second eye, an unstable.

Shining light on Star Refractor

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