Celestron 21045 114mm Equatorial PowerSeeker Telescope

!±8±Celestron 21045 114mm Equatorial PowerSeeker Telescope

Brand : Celestron
Rate :
Price : $115.56
Post Date : Feb 10, 2012 19:30:18
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Celestron PowerSeeker 114EQ 45 - 225X Reflector 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: 114 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; Newtonian reflector 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; Erect image diagonal, ideal for terrestrial and astronomical viewing; Comes with The Sky X Planetarium software; Focal length: 900 mm; Limiting stellar magnitude: 12.8; Resolution (Rayleigh): 1.22 arcsec; Resolution (Dawes): 1.02 arcsec; Light-gathering power: 265X; Angular F.O.V. is 0.9 degrees. Linear F.O.V. is 48' 5x24 mm finderscope; Includes aluminum tripod. Order yours today! Celestron PowerSeeker 114EQ 45X-225X Reflector Telescope

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Who Invented the Telescope?

!±8± Who Invented the Telescope?

The invention of the telescope was a major advance in the science of Astronomy, but who invented it? Maybe you think you already know the answer.

Well, what would you say if I told you that you're probably wrong? After all, it was Galileo Galilei who invented it, right? You might be surprised by the answer to that question. Although Galileo Galilei was a great astronomer, he didn't invent the telescope.

If not Galileo, then who?

A man named Hans Lipperhey invented the telescope. He was born in Wesel, Germany and made his home in Middleburg, part of the Zeeland province in the Netherlands. He was married there in 1594, and became a citizen in 1602. He was a spectacle-maker by trade.

The Italians developed new glass-making techniques which were introduced to the Netherlands in the 1590's. These new techniques helped to bring about new ideas and innovations in the glass-making community and people started to experiment with different ways to combine lenses.

Where is the proof?

Many other people claim to have invented the telescope, but Hans Lipperhey is the only person documented to have applied for a patent for the device.

Child's play

Legend has it that it wasn't Hans himself, but his children who actually invented the telescope while they were playing.

So now you know the story of the telescope and how it came to be.

Who Invented the Telescope?

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Celestron 127EQ PowerSeeker Telescope

!±8±Celestron 127EQ PowerSeeker Telescope

Brand : Celestron
Rate :
Price : $114.00
Post Date : Jan 06, 2012 09:17:34
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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.

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How to Fix Light Pollution Problems With Your Telescope

!±8± How to Fix Light Pollution Problems With Your Telescope

If you are a serious astronomy nut, you know the single most challenging aspect of star gazing is light pollution. With most of the population living in and near major cities, finding a nice piece of sky with little light pollution is getting more and more challenging. However, there are things the star-gazer can do to limit the effects of too much light and fully enjoy the beauty of the heavens. Let's address what light pollution is, what types there are, and what you can do to solve the problems caused by them.

One type of light pollution is undesirable illumination caused by too much artificial light in your field of view, usually created by badly directed light fixtures. This can come from street lights, your neighbor's security lights, etc. Think of it this way, have you ever been blinded by an on-coming car with crooked headlights? Instead of lighting up the road, these misdirected light sources brighten up your car. Same idea. The only fix for this is to move to another location, away from the offending source. The good news is you only have to change your immediate location, like moving a block away.

Another type of light pollution is a general glow in the sky. This is the sum total of all of the lighting in the area of a city. While this type of light seems difficult to overcome, it is actually the kind to more simply fix - light pollution filters. Simply put, they serve to filter the "bad" light out and let the "good" light some through. There are three types of light pollution filters: line filters, narrowband, and broadband.

So which one should you buy? Well, to give you a straight answer...it depends. If you live in a highly populated area, you may want to give serious consideration to purchasing a broadband filter. For those who would do well to buy a narrowband or line filter, it depends on what you want to view. Those interested in the details of celestial bodies should seriously consider buying one of these types.

There is little question as to whether light pollution is a problem for the serious backyard astronomer. The good news is that solutions abound, whether you just need to move your telescope or you need to solve the bigger problem with a light pollution filter. There are numerous brands to choose from - Celestron, Meade, and Orion to name just a few. Just knowing that solutions exist can make your viewing experience much less bothersome. Take your time, figure out where you will view the sky, and what you are looking for prior to making your purchase.

How to Fix Light Pollution Problems With Your Telescope

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