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The Gaia space telescope?
Does anyone know what frequency range the Gaia telescope does its observations in? Visible light, infrared, UV, etc.? If it's visible light then wouldn't that be a problem in observing stars through the galactic dust clouds?
4 Answers
- 2 weeks agoFavourite answer
Gaia uses CCDs, which are visible light plus infrared response down to about 1 micron wavelength. And yes, some stars behind dense dust clouds will not be observed. Basically Gaia observes all stars that are brighter than about 20th magnitude in visible light, so a star that is losing a few magnitudes to interstellar dust is still visible to it. There are 2 billion such stars!
- 2 weeks ago
For once, wikipedia has an excellent article on space research. You can read about Gaia here:
- Ronald 7Lv 72 weeks ago
Infrared is the best Wavelength for looking through Intergalactic Dust Clouds as it shows up signs of heat
Source(s): Intergalactic Dust Spreader - 2 weeks ago
I don't know what the capabilities of that telescope are but they might be listed on NASA or wiki.