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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

Why are cloudy days cooler but cloudy nights warmer than the clear ones?

During a clear night, as heat absorbed by the earth during the day seeps out, the atmosphere allows the heat to pass through. During a cloudy night, however, the clouds catch and retain the heat in the atmosphere.
Clouds trap heat being reflected from the earth
The heat radiation lost from the earth gets reflected by the clouds back to the earth, warming it. Whereas on a clear night it just escapes into space.

Why can't i see out of my meade 114eq-ds telescope?

This could be caused by a number of issues. Beginning with the simplest, there could be an optical blockage somewhere, either in the form of a lens cap or a non refracting object between your target and your eye, Since the 114 is a reflecting telescope, there may be an issue with the mirror's collimation. This would make it difficult to focus on anything and induce coma on your targets. Simple google Collimating A Reflecting Telescope to learn how to fix this. Finally, you could have an inferior eyepiece that is plagued with few coatings and many aberrations. This would present a rather fuzzy and clouded image. Make sure to check all optics for anything that may need to be cleaned and adjusted, especially if you just bought it.

Queen who eventually become the 'M' or 'W' constellation in the night sky?

The queen in question here was Queen Cassiopeia, the wife of King Cepheus. She was considerably beautiful and vainly proclaimed it. The constellation by that name appears as a W which is taken to represent her crown. The constellation is visible all year round in the northern hemisphere night sky and is located roughly on the opposite side of the Pole Star from the Great Bear.

What type of telescope concave mirrors to gather light and view the image?

Reflecting telescopes use concave mirrors to gather and focus light to form an image. The primary mirror in a reflecting telescope collects incoming light and reflects it to a secondary mirror, which then directs the light to the eyepiece or camera for viewing. This design is commonly used in telescopes like Newtonian reflectors and Cassegrain telescopes.

Galileos telescope designs using lenses were examples of?

Galileo's telescope designs using lenses were examples of early optical technology advancements that allowed for magnification and enhanced observational capabilities. These designs revolutionized astronomy and helped Galileo make significant discoveries, such as the moons of Jupiter and the phases of Venus, that supported the heliocentric model of the solar system.

Which technology can allow a single ground-based telescope to achieve images as sharp as those from the Hubble Space Telescope?

Adaptive optics technology can enable ground-based telescopes to achieve images as sharp as those from the Hubble Space Telescope. This technology involves using mirrors that can change shape to compensate for the distortions caused by Earth's atmosphere, allowing for clearer and more detailed images.

What is a refraction of a mirror?

It splits in differents colors according to their different wave length. An example of refracted light is a rainbow.

The ray is split in 7 colors: red, orange, yellow, green, blue, indigo and violet.

What are lens openings called?

Lens openings are called apertures. They regulate the amount of light that enters the camera lens to control exposure and depth of field in a photograph. The size of the aperture is measured in f-stops.

Does the telescope effect people?

Not directly, but knowledge of what is observed, or of the fact of observation, frequently causes people to change their behaviors and attitudes. The telescope itself doesn't affect you at all, but if you knew that other people were watching you, THAT KNOWLEDGE would affect you.

When did Grote Weber invent the radio telescope?

Grote Reber, not Grote Weber, is credited with building the first radio telescope in 1937. He used a parabolic antenna to observe radio waves from outer space, laying the foundation for modern radio astronomy.

Why do astronomers put telescopes in space?

The Earth's atmosphere is about 120 miles thick and anything we see from the surface of the Earth is distorted by the water vapor and debris that is in the air. If you are in space you do not have this distortion. The Hubble Telescope is a good example of space based telescopes.

Scientists have put telescopes in space to avoid interference by the atmosphere.

SOURCE:

-Page 560 of Holt Science & Technology Earth Science

-Chapter 18-Studying Space

-Section 2- Telescopes

-Optical Telescopes in Space

Reflecting telescopes differ from refracting telescopes in having?

Reflecting telescopes use mirrors to gather and focus light, while refracting telescopes use lenses. Reflecting telescopes tend to be more compact and easier to support larger apertures, making them popular for professional astronomical research. Additionally, reflecting telescopes are less affected by chromatic aberration compared to refracting telescopes.

What is magic telescope?

A magic telescope is a tool or device, often a fictional or fantasy object, that allows a person to see things that are not normally visible with the naked eye. It is a common motif in literature and folklore, symbolizing the ability to gain insight or knowledge beyond ordinary perception.

What was Johannes Kepler known for?

Johannes Kepler(1571-1630) was a German astronomy and natrual philosophere who was known for his ability in formulating and verifying the three laws of planetary motion, which are now known as Keplers's Laws.

Do reflecting telescopes have mirror?

Telescopes just refract.

This is not completely true.

If we look at the HST (Hubble Space Telescope) this is a telescope that uses reflection rather than refraction.

Basically light enter the telescope and reflects of one concave mirror onto another concave mirror leading to a focal point where you can see an image.

(look on google images "Hubbell's optics" and a little bit down there is a double diagram with a white background.")

What is light telescope?

Telescopes that work with visible light, as opposed to other radiations such as infrared, ultraviolet, x-rays, etc.

What is the first planet to be discovered using observed gravitational anomalies?

The first planet to be discovered using observed gravitational anomalies was Neptune. Its existence was predicted mathematically based on irregularities in the orbit of Uranus, which led astronomers to search for and discover Neptune in 1846.

What is the formula for light gathering power for telescopes?

The formula for light gathering power for telescopes is proportional to the square of the diameter of the objective lens (or mirror) of the telescope. This can be calculated using the formula: Light gathering power = (Diameter of objective lens)^2.

How do you set the telescopes in the grand tower in mysterious journey 2?

In Mysterious Journey II: Chameleon, to set the telescopes in the Grand Tower, you need to adjust the lenses by rotating them to align specific constellations in the night sky. Look for clues in the observatory room to know which constellations to aim for and adjust the telescopes accordingly. Remember to observe patterns and use trial and error to solve the puzzle.

The trouble experienced with the Hubble Space Telescope dealt with?

The trouble experienced with the Hubble Space Telescope included a flaw in its primary mirror, which caused blurry images. This issue was corrected during a servicing mission in 1993. Additionally, the telescope has faced challenges with a few component failures, which have been addressed through subsequent servicing missions.

What computer language was used to program the computer for Hubble space telescope?

Ada was the programming language initially used to program the computer on the Hubble Space Telescope. It was chosen for its reliability and high-level capabilities, specifically for real-time systems and safety-critical applications.

Is mercury visible with a telescope?

Yes, but only for a short time after sunset or before sunrise. It would not be seen throughout the night, because it is close to the sun. You would not see it every night, only on rare occasions, because it is so close to the sun.

How do you fix the telescope clubpenguin?

On Mission 1 you have to open up your spy phone and click on the red light near the top. Then choose the spanner. Click on one of the pieces of the telescope whilst holding the spanner, and the telescope will be fixed.

Why do astronomers find it difficult to locate extrasolar planets with telescopes?

Planets are considerably smaller than their parent stars, also they emit no light and are very close to the star. With all this combined, separating between the two with a telescope is very difficult.

What is the name of a famous refracting telescope?

NASA's most famous telescope is probably the Hubble Telescope that orbits the earth.