0
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 does a radio telescope and a reflecting telescope have in common?
Reflective and Radio telescopes gather radiation at different parts of the electromagnetic spectrum that they operate, visible light for the optical telescope and Radio frequencies for the Radio telescope. But in both cases, it's electromagnetic radiation. Radio telescopes have to capture the incoming energy that's needed to be above a certain noise and gets processed in electronic circuitry. The result is plotted out as picture of which each point indicates the location at which the beam of the antenna is pointed. It has a huge dish to reflect the incoming energy like that in a reflector telescope. The same terminology can be used in reflecting telescope, but the processing is done in a CCD camera positioned at the focus of the telescope.
Did the hubble space telescope discover Neptune?
No, the Hubble Space Telescope did not discover Neptune. Neptune was first observed in 1846 by the astronomer Johann Galle using mathematical predictions made by Urbain Le Verrier and John Couch Adams. The Hubble Space Telescope was launched in 1990 and has contributed significantly to our understanding of the universe through its observations.
Is it safe to look at the sun through a telescope?
No, it is not safe to look directly at the sun through a telescope as it can cause serious damage to your eyes. Always use appropriate solar filters or projection methods to safely view the sun through a telescope.
Who is the first person look at the moon through a telescope?
galileo
Answer:
The four bright satellites of Jupiter were discovered independently by Galileo and the German astronomer Simon Mayer in the early seventeenth century. There is evidence that these satellites were visible to the naked eye prior to the discovery of the telescope and the "discovery" may be more of a "confirmation". The nake of the initial maked eye observer is not known.
Unfortunately, photographic film is not a very efficient light
detector. Only about 2% of the light striking photographic film is
able to trigger the chemical reaction needed to produce an image.
Thus, roughly 98% of the light falling onto photographic film is
wasted.
What does the acronym ccd stand for in a telescope?
In a telescope, CCD stands for Charge-Coupled Device. It is a sensor that converts light into electronic signals to create digital images. CCDs are commonly used in digital cameras and astronomical equipment for high-quality imaging.
What did early astronomers use before the telescope?
Arab astronomers invented the astrolab, a device for helping them mark the positions of the planets and constellations through the seasons.
Before them the Greeks had invented the "Ankylothera" device, sort of a celestial calendar.
Prior to both of these groups Egyptians marked the ground with stones to note the position of the sun at its solstices and equinoxes. Stone henge, in England, was an astronomical observatory. There are also rock arrangements in South America American Indian observers used to note the positions of stars.
Can Uranus be seen on a clear night without a telescope?
the planets in order closest to sun to furthest to sun.....
-mercury
-venus
-earth
-mars
-jupiter
-saturn
-uranus
-pluto (this is classed aas a dwarf planet though, b/c it's so small)
How is a radio telescope similar to a refracting telescope and a reflecting telescope?
Radio telescopes, refracting telescopes, and reflecting telescopes all use mirrors or lenses to collect and focus incoming electromagnetic radiation. The main difference is the wavelength of the radiation they are designed to study – radio telescopes focus on radio waves, refracting telescopes focus on visible light, and reflecting telescopes focus on a variety of wavelengths including visible light, ultraviolet, and infrared.
right now is to explore Venus but they cant because every one go there dies after sending the information they thing they die 1st reason aliens 2nd reason tornadoes and hurricanes that's why u see circles on Venus
Optical space telescopes are not affected by atmospheric turbulence, which can distort images and limit the clarity of ground-based telescopes. Additionally, they can be positioned above the Earth's atmosphere, avoiding interference from light pollution and atmospheric absorption. This allows them to capture clearer and more detailed images of distant objects in space.
Did da vinci improve and invent the telescope?
While Leonardo da Vinci did not invent the telescope, he did make some sketches of an early version of it in his notebooks. The credit for inventing the telescope is usually given to Hans Lippershey, a Dutch eyeglass maker, around the early 17th century. Leonardo da Vinci was a keen observer of the natural world and made significant contributions to various fields such as art, anatomy, and engineering.
Which direction is each planet?
Mercury, Venus, Earth, and Mars are inner planets and are generally located in the eastern part of the sky in the morning and the western part of the sky in the evening. Jupiter and Saturn are typically seen in the southern part of the sky. Uranus and Neptune are outer planets and can be found in various parts of the sky depending on their position in relation to Earth.
What do I do if my telescope doesn't work?
First, check the power source to ensure it is working and connected properly. Next, inspect the lenses and mirrors for any dust or dirt that may be obstructing the view. If the issue persists, consult the user manual or contact the manufacturer for troubleshooting steps.
What kind of light does an optical telescope collect?
An optical telescope collects and focuses visible light from celestial objects like stars, planets, and galaxies. This light is then directed to a detector or eyepiece for observation and analysis.
How did the Hubble space telescope solve problems?
The Hubble Space Telescope has contributed to solving astronomical problems by providing high-resolution images and data on distant celestial objects, leading to new discoveries and better understanding of the universe. Its ability to capture clear images from above the Earth's atmosphere has allowed scientists to study phenomena such as black holes, dark matter, and the expansion of the universe.
A reflecting telescope uses a curved mirror to concentrate the light from distant stars, and is a very useful technique. There are very clever techniques and technicians, which can produce a mirror perfect over all its area, to within part of the wavelength of light!!
The alternative method of using a glass lens, suffers from various difficulties, such as distortion and loss of light.
You do not ordinarily consider focus in an astronomical telescope, for all the stellar objects are essentially at infinity.
How many years is 587 light years?
Light years is a measure for distance, the distance light travels in one year.
For the light to travel 587 light years, it takes 587 years.
What is the best telescope of for a beginner in the UK under 1000 pounds?
Hi. Well, I'm from America, so I'm not completely sure about this.
Can this help you?
The Skyliner-200P 203mm (8") Dobsonian Telescope, about half way down this page, £299:
Many beginners have bought that one and thought that it was perfect.
For more advanced information, read Phil Harrington's Star Ware, 4th edition (Wiley).
Buy from a store which specializes in telescopes and astronomy, either locally or online; don't buy from department stores, discount stores or eBay as mostly what they sell is junk. Find your local astronomy club and try out different telescopes at one of their star parties:
http://www.skyandtelescope.com/community…
I strongly recommend that beginners steer clear of astrophotography until they have learned their way around the sky. Astrophotography is by far the most expensive and difficult area of amateur astronomy.
Many people who buy telescopes have no idea how to find interesting things to observe. A good introduction to finding things is NightWatch by Terence Dickinson (Firefly). A more advanced book is Star Watch by Phil Harrington (Wiley).
How did Hubble space telescope affect the world?
The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by a Space Shuttle in 1990 and remains in operation. A 2.4 meter (7.9 ft) aperture telescope in low Earth orbit, Hubble's four main instruments observe in the near ultraviolet, visible, and near infrared. The telescope is named after the astronomer Edwin Hubble.
Hubble's orbit outside the distortion of Earth's atmosphere allows it to take extremely sharp images with almost no background light. Hubble's Ultra Deep Field image, for instance, is the most detailed visible-light image ever made of the universe's most distant objects. Many Hubble observations have led to breakthroughs in astrophysics, such as accurately determining the rate of expansion of the universe.
Although not the first space telescope, Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy. The HST was built by the United States space agency NASA, with contributions from the European Space Agency, and is operated by the Space Telescope Science Institute. The HST is one of NASA's Great Observatories, along with the Compton Gamma Ray Observatory, the Chandra X-ray Observatory, and the Spitzer Space Telescope.
Space telescopes were proposed as early as 1923. Hubble was funded in the 1970s, with a proposed launch in 1983, but the project was beset by technical delays, budget problems, and the Challenger disaster. When finally launched in 1990, scientists found that the main mirror had been ground incorrectly, significantly compromising the telescope's capabilities. However, after a servicing mission in 1993, the telescope was restored to its intended quality.
Hubble is the only telescope designed to be serviced in space by astronauts. Between 1993 and 2002, four missions repaired, upgraded, and replaced systems on the telescope, but a fifth mission was canceled on safety grounds following the Columbia disaster. However, after spirited public discussion, NASA administrator Mike Griffin approved one final servicing mission, completed in 2009. The telescope is now expected to function until at least 2014. Its scientific successor, the James Webb Space Telescope (JWST), is to be launched in 2018 or possibly later.
Do hubble telescopes only uses visible light?
No, Hubble Space Telescope uses a variety of wavelengths to observe the universe, including ultraviolet, visible, and near-infrared light. This allows it to capture a wide range of astronomical phenomena and provide a more comprehensive understanding of the cosmos.
An observatory is a place that uses telescopes and scientific equipment for astronomical research. Observatories are often located in remote and dark locations to minimize light pollution and atmospheric interference.
Is it better to have a telescope with a high resolving power or a high magnification explain why?
It is generally better to have a telescope with high resolving power rather than high magnification. Resolving power determines the ability to distinguish fine details in an image, while magnification simply increases the size of the image. High resolving power provides sharper and more detailed images, making it more useful for observing faint or distant objects in the night sky.
How is a radar and a telescope similar?
There is little or no similarity.
A radar is active (it radiates energy).
A telescope is passive (It relys on incoming energy)
The only thing I can think of, is that you point both towards an object and get some sort of information from it.
What do you turn the telescope to on shrink ray?
On a shrink ray telescope, you would typically turn the focusing ring to adjust the magnification and bring the target into sharper focus. This allows you to zoom in and view objects in closer detail.
