Telescopes

One of the most surprising discoveries first-time telescope owners will find is that images may appear upside-down or backwards depending on the type of telescope. The first thought is the telescope is broken - when in fact it is working perfectly normal. Depending on the type of telescope images may appear correct, upside-down, rotated, or inverted from left to right.

Why is this? Why would I want to see everything incorrectly? For astronomical viewing, it is not important whether an object is shown correctly. In space there is no up or down. Besides, Saturn is not something you see everyday and you would not know if it was upside-down or not. A Tree, Building, Person or an Automobile for example would be important to see correctly. When you view an automobile upside-down, you recognize that this is not correct. Lets talk about the different types of telescopes and how the orientation of the image is observed through them and what you can do to correct it for land use.

Refractor and Cassegrain telescopes will produce an image that is upside down when used without a diagonal. When a diagonal is used the image will be corrected right side up, but backwards from left to right. It will look like trying to read a sign in a mirror. There are special diagonals called Erect Image Prism diagonals that can correct the backwards image for land use.

Newtonian Reflectors will produce an image that is upside down and are not recommended for land use. There are no ways to correct this with a Newtonian Reflector.

Reflecting telescopes use mirrors to collect light.

i think it is the guy whose surname is Snell.

In general, reflecting telescopes can give you more light collection than refracting telescopes, and they can be designed to have greater focal length in more compact bodies. Light collection is the single most important factor in a telescope's ability to produce images of good resolution.

Taking molecules away from other microorganisms and seeing what it looks like without the molecules.

A telescope is the most helpful tool when observing the moon.

Galileo (1564-1642) is often credited with the invention of the telescope, when in fact he only improved upon it.

The earliest telescopes were built in 1608 by three separate Dutch spectacle makers: Hans Lippershey (who patented one), Zacharias Janssen, and Jacob Metius. The following year, 1609, Galileo heard of the use of lenses in this manner, and built telescopes of his own, which quickly brought him great prestige in Venice. In 1610 his telescopes allowed him to observe the known planets and discover the first moons around Jupiter.

Venus has the greatest visual magnitude when viewed from Earth.
Note: one might think Jupiter would have the greatest visual magnitude, but Jupiter is quite far away from Earth, and reflects back much less sunlight than the inner planets.

Refracting telescope.

Many moons in our solar system can be seen through a telescope, such as the four largest moons of Jupiter (Io, Europa, Ganymede, and Callisto), the largest moon of Saturn (Titan), and Earth's moon. Some smaller moons, such as Triton (moon of Neptune) and Miranda (moon of Uranus), may also be visible with more powerful telescopes.

Fifferent objects in the Univers have different levels of electromagnetic energy. Telescopes that detect different types of electromagnetic waves are able to see the different energy objects objects. For example night vision cameras pick up the infrared radiation of the human body that the normal cameras can't see.

The focal point of all Hubble Space Telescope

(HST) activities is the Space Telescope Operations

Control Center (STOCC) at NASA's Goddard Space

Flight Center in Greenbelt, Md., where the orbiting

observatory is managed.

It is not visible to the naked eye in any circumstances, but it might be visible in large binoculars.

Many historians explain that Galileo was the first person to use a telescope. In 1610 Galileo discovered Saturn's rings. He also observed Jupiter's four moons and viewed the different phases of Venus. This lead to the study of sunspots and various celestial activities. Even though Galileo is credited with being the first to make practical improvements and enhancements to the use of the telescope, he was not the inventor, and therefore not the first person to use a telescope. That person would be Hans Lippershey. Hans Lippershey was born 1570 in Germany, but was raised in Holland. He invented the first refracting telescope in 1608. A lens maker, he designed this telescope from two lenses and applied for a patent, intending that it would be important for the military. He successfully demonstrated the usefulness of his refracting telescope to the military.

Radio telescopes are generally much larger than optical telescopes for two reasons: First, the amount of radio radiation reaching Earth from space is tiny compared with optical wavelengths, so a large collecting area is essential. Second, the long wavelengths of radio waves mean that diffraction severely limits the resolution unless large instruments are used.

Most large earth bound telescopes cannot see clear images of objects in deep space. Our. atmosphere distorts the pictures with shimmery air. The HST (Hubble Space Telescope) has the advantage because it is in space and has almost no distortion. It can see much farther than regular telescopes.

Refracting

A 1 m telescope has a collecting area of pi x 1 x 1 = 1 pi
A 3 m telescope has a collecting area of pi x 3 x 3 = 9 pi.
Therefore, the bigger telescope collects 9 times as much light.

each star is like a fat little kid eyeing a box of cookies. Except in this case earth is the cookies. And eating the cookies is an apocalyptic scenario where everyone dies. for this reason people use telescopes to keep the stars under constant surveillance, because if the stars know they're being watched, they wil not attack.

Saturn is the last planet that can be seen without using a telescope or binoculars and the planet was known in the ancient world before telescopes were invented. The rings, however, can only be seen using a telescope.

Space-based telescopes can see further in space as they don't have to make do with a disturbing atmosphere (slight differences in temperature in atmospheric layers lead to perturbations of photos). So, very long exposures (over hours) can reasonably be made without having to fear such undesired phenomena. Very long exposures also means that the very faint sources of light (at the edge of the observable universe) can also be pictured so that they can be distinguished from the background noise. This way, space telescopes see further.

A telescope collects electromagnetic radiation to view objects far away. A telescope is a device used to observe remote objects and used in the study of astronomy. The first telescope was made in the 1600's..

A refracting telescope is a type of optical telescope. It was used in astronomical telescopes and spy glasses. Objective lens are used to produce the image.