- What does the telescope detect?
- What was the main type of detector that was used by astronomers to record astronomical information during most of the 20th century?
- What do infrared telescopes detect?
- Why are different types of telescopes used to detect signals from space?
- Are there Colours in space?
- Can astronauts look at the sun in space?
- Which planet has many moons?
What does the telescope detect?
Most people are only familiar with optical telescopes, that is telescopes that detect radiation in the visible spectrum. BUT…. Since gamma-rays, x-rays, radio waves, infrared waves and ultraviolet waves are also forms of electromagnetic radiation, telescopes can also be designed to detect those waves.
What was the main type of detector that was used by astronomers to record astronomical information during most of the 20th century?
Photographic and Electronic Detectors Throughout most of the twentieth century, photographic film or glass plates served as the prime astronomical detectors, whether for photographing spectra or direct images of celestial objects.
What do infrared telescopes detect?
Infrared telescopes can detects objects too cool—and therefore too faint—to be observed in visible light, such as planets, some nebulae and brown dwarf stars. Also, infrared radiation has longer wavelengths than visible light, which means it can pass through astronomical gas and dust without being scattered.
Why are different types of telescopes used to detect signals from space?
Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.
Are there Colours in space?
Space emits a range of wavelengths of light, some we can see others we can’t. Even the Hubble Space Telescope which has been capturing the most amazing space images that we have witnessed so far doesn’t really see any color and only takes pictures in black and white.
Can astronauts look at the sun in space?
3 Answers. Facing the Sun does not mean looking at it. As there are no air there, you have more light looking directly at the Sun, but LESS light looking somewhat in its direction, but not straightly. Because of that, BTW, you can see stars simultaneously.
Which planet has many moons?