The Hubble Telescope is a large observatory, which is hovering in space, that was first launched in 1990. The Hubble Space Telescope (HST) was named after the astronomer Edwin P. Hubble and has been sending Earth photos of the Universe and beyond for seventeen years. It was actually Lyman Spitzer Jr. who first had the concept of an observatory that was above Earth's atmosphere, so that it wouldn't interfere with the data, which would assist scientists in the study of all things space. The HST rotates Earth every 97 minutes and is approximately 360 miles above the planet's surface. Read more...
Binoculars are two small telescopes, sealed into one package. The majority of binoculars use Galilean optics, or a convex objective and a concave eyepiece lens. Binoculars offer low light levels and small magnification, which can make it useful to amateur astronomers whom are just seeking a casual perusal of the sky. The large view field of binoculars is useful when watching large deep sky objects such as the Milky way, nebula and galaxies though one will likely be unable to view asteroids or moons. Read more...
In keeping with the time, Astronomy has advanced to include software for computers. A majority of the software to be found will be for Windows platform but there are some for Mactinosh and Unix as well. Additionally, there are several astronomy driven web pages accessible to anyone with internet access and a computer. Some of these software packages can be purchased for free, while other require payment. The cost for software can range from low to high, depending on what sort of features one is looking for. Read more...
Radio telescopes are completely different from the better known telescopes in that it deals with the EM (electromagnetic) spectrum. Radio telescopes are generally large dish (parabolic) antennas, used singularly or in a group, which collect data on radio sources. Radio telescopes are often setup away from major cities or large populations in order to avoid electromagnetic interference. While an optical telescope would be placed on a high mountain, ideally, to have a clear view of the sky, radio telescopes would be placed in valleys in order to avoid EMI. Read more...
The history of the telescope begins with the first spyglass and spectacles. It was Galileo who designed and used the first refractor telescope, with improvements fostered by his contemporary Kepler, and soon scientists all over the world were fascinated with the use and improvement of such device. Of course there is some controversy over whether Galileo was the first to invent the telescope (though he is undisputedly the most renowned) or whether it was a Dutch spectacle maker named Hans Lippershey. Read more...
Galileo was the inventor of the first telescope, however it did not come without inspiration from other inventions. The spyglass was first invented, and then spectacles followed. In 1609 it was discovered that if one put a lens of the farsighted a distance away from one that was for nearsighted and peers through the farsighted lens then distant objects would come into focus. As soon as Galileo learned of this, he set out to refine it. Read more...
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