Why do we need the Hubble if have these telescopes??
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2 posted on
05/26/2004 6:37:56 PM PDT by
KevinDavis
(Let the meek inherit the Earth, the rest of us will explore the stars!)
To: KevinDavis
I meant to say, why do we need the hubble if we have these two telescopes.
3 posted on
05/26/2004 6:38:39 PM PDT by
KevinDavis
(Let the meek inherit the Earth, the rest of us will explore the stars!)
To: KevinDavis
Why do we need the Hubble if have these telescopes?? Trying to image planets around other stars is a very different type of astronomy than the general-purpose work the Hubble does.
Imagine looking for a planet around another star. The planet is very close to the star, and does not emit any light at all. All you see is reflected light. The star on the other hand, is extremely large and bright compared to the planet.
Think of it as looking for a gnat which is sitting on the edge of a searchlight aimed directly into your eyes from a distance of about 300 yards.
5 posted on
05/26/2004 6:44:39 PM PDT by
CurlyDave
To: KevinDavis
To: KevinDavis
Why do we need the Hubble if have these telescopes?? That's like asking why we need F-16s when we've got B-1s. Different missions. Hubble is to some extent a jack of all trades, but it's best at deep space work, that is extra galactic.
10 posted on
05/26/2004 9:25:00 PM PDT by
El Gato
(Federal Judges can twist the Constitution into anything.. Or so they think.)
To: KevinDavis
Because the main job of the Hubble was to measure Cepheid variable stars in cosmologically distant galaxies, which is hard to do when your telescope is designed to block out the light of the star.
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