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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 planet was first discovered by telescope?
Uranus, which was discovered by Sir William Herschel
Prior to the invention of the telescope, the only known planets were Mercury, Venus, Earth, Mars, Jupiter, and Saturn.
Uranus was the first planet discovered by telescope.
Where was the Hubble Space Telescope built?
Once the Space Telescope project had been given the go-ahead, work on the program was divided among many institutions.
Marshall Space Flight Center (MSFC) was given responsibility for the design, development, and construction of the telescope, while theGoddard Space Flight Center was given overall control of the scientific instruments and ground-control center for the mission. MSFC commissioned the optics company Perkin-Elmer to design and build the Optical Telescope Assembly (OTA) and Fine Guidance Sensors for the space telescope. Lockheed was commissioned to construct the spacecraft in which the telescope would be housed.
Perkin-Elmer was commissioned to build the optical components of the Hubble Space Telescope. The construction of the main mirror was begun in 1979 and polishing completed in 1981 in Danbury Connecticut.
What telescope collects light with a mirror?
A reflector telescope collects light with a mirror. The mirror is located at the back of the telescope and reflects the incoming light to a focal point where it is then collected by an eyepiece for viewing.
How many years ago was Uranus first seen through a telescope?
In 1781, William Herschel discovered a planet which he named 'Georgian Star', after King George. It was popularly known as 'Herschel', but was later named Uranus. He later discovered two of its' moons, Titania and Oberon.
Telescopes that collect electromagnetic radiation in shorter wavelengths, such as ultraviolet or X-rays, need to be placed in dry areas or outside the atmosphere because water vapor and other gases in the atmosphere can absorb or scatter such high-energy radiation, affecting the observations. Placing these telescopes in dry areas or above the atmosphere helps ensure that they can collect unimpeded data in these wavelengths.
Who designed a reflecting telescope?
Isaac Newton is credited with designing the first practical reflecting telescope in the 17th century, known as the Newtonian telescope. By using a curved mirror to reflect and focus light, Newton's design offered advantages over traditional refracting telescopes of the time.
Can Earth-based telescopes see all large features of the Moon's surface?
No, they cannot. Only a little over 50% of the moon's surface can be observed from earth, and observations must be made over a period of about 15 years in order to observe the maximum amount of surface.
Yes they do. They have 4 arms. They have antennae. They have big black egg-shaped eyeballs. They have, as their mouth, a little thick tube with a suction cup at the end to suck grease from a sausage. They have 2 pointy ears.
Jocelyn Bell Burnell is a prominent astrophysicist from Northern Ireland. She is best known for her discovery of pulsars, which are rapidly rotating neutron stars that emit beams of electromagnetic radiation. Despite her groundbreaking discovery, she faced significant gender discrimination in the field of astrophysics.
What was the eccentricity of Halley's comet?
The eccentricity of Halley's comet is approximately 0.967, which is quite high compared to other solar system objects. This high eccentricity means that its orbit is very elongated, taking it from the outer solar system to the inner solar system and back every 76 years.
The planet closest to the sun is?
The planet closest to the sun is Mercury, with an average distance of 36,000,000 miles, or 57,900,000 kilometers between the two.
What are some major events that have happened to Mercury?
Some major events that have happened to Mercury include impacts from asteroids and comets that have created craters on its surface, the cooling and contraction of its interior leading to the formation of cliffs and ridges, and the bombardment of solar wind particles causing its thin atmosphere to constantly escape into space.
Differences between reflecting and refracting telescopes?
Reflecting Telescopes -uses a single or combination of curved mirrors to bring light to a focus and make an image.
What is the primary purpose of a telescope?
To collect visible light emitted / reflected / scattered from a distant body, and increase the apparent size (or at least the intensity) of the image specularly, so that features can be discerned / observed.
Two people independently discovered the telescope?
Hans Lippershey, a Dutch eyeglass maker, and Galileo Galilei, an Italian astronomer, are credited with independently developing the telescope in the early 17th century. Lippershey filed the first known patent for a telescope in 1608, while Galileo made significant improvements to the design and used it to make groundbreaking astronomical observations.
You can see things with the naked eye- you can see them well. They are cheap. They are easy to use (you don't need training) Easy availability (you can get them from Tesco's) They gave us good early info (Gallieo used them to try and prove that the Earth revolved round the sun- not the other way round!) •
What is a radio telescope made out of?
Radios are electronic devices which grab signals and turn them into sound. They are composed of electrical circuits and of the various electrical and electronic components that are needed to make those circuits which in turn make the radio itself work.
Who invented the thermometer and the telescope?
Galileo Galilei is credited with inventing the telescope in the early 17th century, which he used to make significant astronomical discoveries. The thermometer was invented by Galileo's contemporary, but it is unclear who the exact inventor was because the concept of a scale measuring temperature had been developed by multiple scientists around the same time period.
How many Bodies were known in the Universe before the Telescope?
Before the telescope, people were aware of the Sun, Moon, and visible planets (Mercury, Venus, Mars, Jupiter, Saturn). They were also familiar with comets and meteors as occasional celestial events. Overall, the understanding of celestial bodies was limited compared to what we know today with the aid of telescopes and advanced technology.
What telescope did Isaac Newton invent?
Isaac Newton did not invent the telescope, but he did improve upon it by designing the Newtonian telescope in the 17th century. This telescope uses a concave mirror to reflect and focus light, allowing for a clearer and sharper image. Newton's design helped to overcome some of the limitations of previous telescope models.
Where is the largest reflecting telescope of Asia?
The largest reflecting telescope in Asia is located at the National Astronomical Observatory of Japan in Okayama Prefecture. It is known as the Subaru Telescope and has a primary mirror that measures 8.2 meters (27 feet) in diameter.
Is the radio telescope an instrument which measures radiation?
Yes, a radio telescope is an instrument specifically designed to detect and measure radio waves emitted by celestial objects in space. It is used to study and observe radio emissions from various astronomical sources, providing valuable information about the universe.
Where is the highest ground based telescope functioning since 2001 in the world?
The highest ground-based telescope functioning since 2001 is the Large Millimeter Telescope (LMT) located in Mexico. It is situated on the summit of Sierra Negra, a dormant volcano in the state of Puebla, at an altitude of 4,580 meters (15,026 feet) above sea level.
1 hundred thousand in powers of ten?
100,000 can be expressed as 1 x 10^5 in scientific notation or as 10^5 in powers of ten.
