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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
Who the first man to use a telescope in observing heavenly bodies?
the color of the stars is realetedto its
How is the hubble telescope able to operate outside of the atmosphere?
The Hubble Telescope operates outside of the Earth's atmosphere in space, where it is not affected by atmospheric distortions that can blur images. This allows for clearer and more detailed observations of distant celestial objects. Additionally, being above the atmosphere also provides access to a wider range of wavelengths of light that would be absorbed or scattered by the atmosphere.
Phobos is one of the two natural satellites of Mars. It orbits that planet every
7hours 39minutes, at an average distance of about 9,380 km (5,830 miles).
What kind of upbringing did Frank Drake have?
Drake loved electronics and chemistry. He considered the possibility of life existing on other planets as an eight-year-old, but never discussed the idea with his family or teachers due to the prevalent religious ideology.
He enrolled at Cornell University on a Navy Reserve Officer Training Corps scholarship and studied astronomy. His ideas about the possibility of extraterrestrial lifewere reinforced by a lecture from astrophysicist Otto Struve in 1951. After college, Drake served briefly as an electronics officer on the heavy cruiser USS Albany. He then went on to graduate school at Harvard to study radio astronomy.
Drake's hobbies include lapidary and the cultivation of orchids.
Was it possible for Pocahontas to gaze at the stars through a telescope?
yes
Because the Telecope was invented in the year 1608 and Pocahontas died on March 21,1617
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What two discoveries did Galileo make with the telescope?
He Discovered that Earth was not the center of the solar system , Jupiter Has four moons and Venus has light and dark phases, like a moon! He also discovered the rings of Saturn. All this using just one telescope?
Galileo didn't invent the telescope, but he was the first person we know of to point a telescope into the skies - and discovered that Jupiter wasn't just a bright light in the sky, but was an enormous planet with moons of its own. The four largest are called the "Galilean" moons; Ganymede, Europa, Callisto and Io.
What kind of telescope is used to see Saturn?
You can see Saturn with any kind of telescope. In fact, you can see it without a
telescope. For professionals and serious amateurs, the type of telescope used
depends on what specific property or characteristic of Saturn they're interested in.
Why can't a radio telescope be used on a cloudy night?
A radio telescope can be used on a cloudy night, because its signal can move through the clouds and rain mostly unaffected and still gather data.
Why are mirrors better than lenses for telescopes?
I cannot think of a telescope without mirrors, unless it is completely run by computer with digital imaging.
How do you make a refracting telescope using simple materials?
A homemade refraction telescope can be quite simple to build provided one has the materials needed (two twelve inch cardboard tubes, one capable of sliding into the other; two lenses of different focal length; two small pieces of corrugated cardboard; scissors, pencil, razor knife, paint and glue). Use the knife to cut out a circle from the cardboard slightly smaller than the size of each lens. Cut a ring around each hole. Trim each ring to fit within one of the tubes. Glue each lens to the cardboard ring, then glue the lens assembly into the end of each tube. Finally, slide the smaller tube into the larger, and your telescope is complete.
Why can radio telescope can see things that a telescope that detect visible light cant?
-- The source may be one that emits electromagnetic energy in the radio portion
of the spectrum but little or no visible light.
-- There may be material in the way, such as dust or gas, that absorbs visible light
but doesn't absorb radio energy.
What is the Comparison between Hubble and Galileo telescope?
what is the comparison between Hubble telescope and Galileo telescope
Can you observe Venus through a telescope during civil twilight?
Indeed you can. When at its brightest, Venus is about one-fourth as bright as all the rest of the stars (but not the Moon) put together. You can even see it for a bit when the Sun is out.
It's largely a matter of features and construction.
Basically, the Zhumell uses a "camera tripod", which uses a "joystick" for aiming the scope. It's very "handy", but... it tends to "shift" the aim, a bit, when you "lock it down". It works ok, but... there are no "granular" adjustments, in any axis, so "tracking" a moving "object" (eg. the stars, etc) can be challenging.
By comparison, the Celestron uses separate declination (eg. up/down) and azumith (left/right) controls, and the declination does have a "granular" adjustment. So, as with the "joystick", it works ok, but, again, "tracking" a moving "object" (eg. the stars, etc) can be challenging.
An "equatorial mount" allows "granular" adjustments in both axises. It's a bit more expensive, and it's quite "precise", but... it's a bit of a "pain" to get it all set up and adjusted.
I've had both; I still have the Zhumell Zenith.
What does the design of modern X-ray telescopes depend on?
grazing incidence optics... x rays cannot be treated the same as visible light... it is not filtered but focused
