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Telescopes
A telescope is a device used to form images of distant objects. There are two kinds: an optical telescope uses lenses and is known as a refracting telescope or a refractor, and a reflecting telescope, which uses a mirror and is known as a reflecting telescope or a reflector. The earliest telescope was a refractor built by the Dutch eyeglass maker Hans Lippershey. This category is for questions related to telescopes, including using them to view distant planets and objects in space.
1,887 Questions
What part does light play in a telescope?
many such as magnifying
They take objects that are at a distance and magnify them using mirrors and/or lenses.
the use of a telescope is so you can see in to space clearly
Can you see the flag on the moon from earth with a telescope?
IT IS NOT POSSIBLE WITH ANY TELESCOPE, EVEN THE HUBBLE SPACE TELESCOPE !
http://www.rocketroberts.com/astro/flag_on_moon.htm
Go to that link for a detailed, scientific answer as to why we cannot see it. The simple answer is we are way too far away !...........I'm sorry, but I am an astronomy major and the statement that we could not even see it with the hubble telescope is completely untrue. However, the answer is NO, you cannot see it from Earth, even with a powerfull telescope.
What is the process of retaining radiation without reflecting it?
One way to retain radiation without reflecting it is by using materials that absorb the radiation instead of reflecting it. This absorption process converts the radiation into heat energy, which is then dissipated through convection or conduction. Materials such as lead, concrete, or water are commonly used to retain radiation in various applications like shielding in nuclear facilities or medical imaging.
What type of electromagnetic radiation does an infrared telescope collect?
infra-red telescope is a telescope in which you can look at everything in the waves of infra-red.
How else do telescopes use to investigate space?
Telescopes use various methods to investigate space, including optical, radio, infrared, ultraviolet, and X-ray observations. Each type of telescope is designed to detect specific wavelengths of light, allowing astronomers to study different phenomena, such as the composition of celestial bodies, the behavior of distant galaxies, and cosmic events like supernovae. Additionally, space-based telescopes avoid Earth's atmosphere, providing clearer images and enabling observations of faint objects in the universe. Advanced technologies, like adaptive optics and spectroscopy, further enhance the capabilities of telescopes in exploring the cosmos.
Can you see Neptune with the naked eye?
Neptune is the only planet (including all dwarf planets) in our Solar System that cannot be seen with the naked eye. [See related question]
Even with a telescope, it is difficult to see.
When was the Kepler telescope built?
The Kepler Mission is a NASA space telescope designed to discover Earth-like planets orbiting other stars. Using a space photometer developed by NASA, it will observe the brightness of over 100,000 stars over 3.5 years to detect periodic transits of a star by its planets (the transit method of detecting planets) as it orbits our Sun. The mission is named in honor of German astronomer Johannes Kepler.
What are the four refractory media of the eye in order of refracting light?
The refrective media of eye is composed of four parts of eye, the cornea which is the anterior 1/6 of the external tunic (fibrous tunic) of the eyeball. The aqueous humoris second part of the refractive media of eye, it is a colorless, transparent and watery fluid, it fills the chambers of the eye and is formed by active transport and diffusion from the capillaries of the ciliary processs from which it enters the posterior chamber then it passes into the anterior chamber throuh pupil and escapes from the iridocorneal angle into the sinus vinus sclerae through the space of iridocorneal angle, and finally drains in the opthalamic veins via anterior ciliary veins. The third part of the refractive media of the eyeball is the lens which is a adjustable, transparent and elastic, convex body lacking blood vessels and nerves and the convexity of its anterior surfac is less than the of it's posterior surface. The last one of the refractive media of eye is the vitreous body. The vitreous body is a colorless, transparent and jelly-like body which is fills the posterior fourth-fifths of the eyeball . It is also a condensed superficially to form a transparent envelope, the vitreous membrane. The refractive media is an important theory that you must understand in your anatomy courses especialy when you want to be an opthomologistbecause most cases of the eye come from the refractive media. In the conclusion the four refractive media of eye are the ones that were mentioned above that are : Cornea + Aqueous humor + Lens + Vitreous body Prepared by: Dr. Mohamed Esse Rage & Dr. Abdirahman Abdulkadir Issak, Wuhan Medical University, China
Why does it not matter that the image produced by a telescope inverted?
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.
Why are reflecting optical telescopes important?
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.
What is the main purpose of reflecting and refracting telescopes?
Taking molecules away from other microorganisms and seeing what it looks like without the molecules.
What tool is most helpful in observing the Moon?
A telescope is the most helpful tool when observing the moon.
What year did Galileo invent the telescope?
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.
Which planet has the greatest visual magnitude?
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.
What is the name of the telescope that uses convex lenses to gather and focus light?
Refracting telescope.
What moons can been seen through a 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.
Why are different types of telescopes used to observe and study stars?
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.
Who came up with the idea for the hubble space telescope?
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.
Can Venus be seen without a telescope?
It is not visible to the naked eye in any circumstances, but it might be visible in large binoculars.
Did Galileo design refracting telescopes?
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.
