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James Webb Space Telescope completes tests

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Herr Falukorv

Nice...
I wonder how a picture on the moon would look like using a telescope like this..
 

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pallidin

Sure hope the launch, final seperation, and whatever else goes OK.

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seanjo

Let's hope this one doesn't need spectacles...

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pallidin
1 hour ago, Herr Falukorv said:

Nice...
I wonder how a picture on the moon would look like using a telescope like this..
 

Not sure, but I think it's not designed to resolve "near objects"

Focal length type of thing I guess.

Same as if Hubble were pointed towards our Earth... very, very fuzzy images.

Not sure about all that, though.

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Sundew

It would be a bummer if we find earth-like habitable planets because for the foreseeable future we can't get there.

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Haroldbattschits

I hope it is up and working before I die. I'm 52 years old and I have a limit of 55. It will be soooooooo far away that if it doesn't work, it would take 10-20 years of planning to try to get it back, if it's even possible. They say not, but I imagine they wouldn't want to throw it all away either.  

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Waspie_Dwarf
On 1/11/2018 at 8:23 PM, Herr Falukorv said:

Nice...
I wonder how a picture on the moon would look like using a telescope like this..
 

On the moon or of the moon?

It will be a fair distance from the moon and so images it took would be of a lower resolution than those taken by orbiting spacecraft. Placing it on the moon would make no difference to any image it took except for the Earth, as it will be just as far from the objects it will be imaging.

 

On 1/11/2018 at 10:10 PM, pallidin said:

Not sure, but I think it's not designed to resolve "near objects"

Focal length type of thing I guess.

Same as if Hubble were pointed towards our Earth... very, very fuzzy images.

Not sure about all that, though.

Hubble managed to image the Moon from Earth orbit back in 1999 (see here), so it would be capable of imaging the Earth from lunar orbit. The only problem could be the brightness of the Earth might overwhelm the detectors on Hubble.

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