It will always be 1.5 million km from Earth. Well ... it

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11. jan. 2010 08:30 When the aging Hubble Space Telescope end its mission in four years, says a replacement waiting in the wings, a successor is in the process of being built.
These days you just started to test one of the key components of the future space telescope that has the name James Webb, named after a former expendable 2 director of NASA. It is the mirror that is about to be completed and therefore must be tested under conditions similar to space.
The mirror consists of 18 small mirrors, making it possible to make it considerably larger than the HST mirror having a diameter of 2.4 meters. expendable 2 With James Webb will mirror have a diameter of less than 6.5 meters.
Unlike Hubble, so will the new telescope will not be placed in orbit around the Earth, but instead around the Sun, and Space Telescope Keppler. It also means that it will not be possible to send people out and service the telescope, as has happened expendable 2 with the Hubble four times.
Hee hee ... so you have to hope that they do not make too many mistakes in the mirror as they did with Hubble. There one can say that it was quite fortunate that there was a service access to it - even if it were not what was planned.
It is hoped that the experience has made with Hubble will be good enough to telescope can handle himself out there ... There is probably a pair of red ears if it breaks within the first month:-)
What I can understand from this description: http://www.jwst.nasa.gov/orbit.html Then the orbit the sun but in a fixed position, where it follows the ground. It will always be 1.5 million km from Earth.
I can not quite see why it is called Hubble's successor. I guess it's expendable 2 pretty much just an optical telescope expendable 2 in orbit around the sun? It performs's not the same job.
# 4 hubble looking out into the universe with an optical telescope, but will be phased out in a few years. james webb (ridiculous naming, but that's another matter) looking out into the universe with an optical telescope within a few years. so yes, it can just as well be called a replacement, as it probably should be doing the same work as hubble and more, when hubble phased out frodel for james webb. there is no other optical telescopes in space
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What I can understand from this description: http://www.jwst.nasa.gov/orbit.html Then the orbit the sun but in a fixed position, where it follows the ground. It will always be 1.5 million km from Earth.
Well it's not a trip you just take in an afternoon, but it only takes a few days to get to the moon, so the trip out to teleskobet should be done in a week's time. fennec (# 3)
... So it's a trip you can handle, but it will be dicks expensive and, well, a impossible when you consider what hardware that NASA has available today. :)
The way you've raised off the ground. such as the moon is to follow a path called Homann field to save the most on fuel so to achieve it with this track, I think that bøhøver an entire trip around the sun which will take a little more than a week but that is just reflection.
It will always be 1.5 million km from Earth. Well ... it's not a trip you just take in an afternoon, but it only takes a few days to get to the moon, so the trip out to teleskobet should be done in a week's expendable 2 time. fennec (# 3)
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