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Author Topic: Could the James Webb Telescope look at the moon?  (Read 1881 times)

Offline thedoc

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Could the James Webb Telescope look at the moon?
« on: 06/09/2011 16:50:03 »
Would the James Webb telescope be able to see the moon lander or some of the other man-made debris on the moon?
Asked by Pekka Oilinki


                                        Visit the webpage for the podcast in which this question is answered.

 

« Last Edit: 06/09/2011 16:50:03 by _system »


 

Offline thedoc

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Could the James Webb Telescope look at the moon?
« Reply #1 on: 06/09/2011 16:50:03 »
We answered this question on the show...



Unfortunately not, but not because it wouldn’t have the resolution. 
This is a very cold telescope. It sits at this point called Lagrange point 2, which is roughly 4 times the distance of the moon from earth, and the moon is a very warm object for an infrared telescope. 
So, in fact, we’ve designed this big sun shade, which is the size of a tennis court, precisely to block out the heat of the sun, the Earth, and the moon.  So we can never look back at the Earth, the moon, and certainly not the sun. 
And so, unfortunately, the moon will remain inaccessible to us...
« Last Edit: 06/09/2011 16:50:03 by _system »
 

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Could the James Webb Telescope look at the moon?
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