Night sky aka Star gazing aka Astronomy :-)
29 watchers
Jan 2022
10:36pm, 9 Jan 2022
3,302 posts
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Groundhog
I imagine being an amateur astronomer and getting interviewed on TSAN is like being in a band and getting on Top of the Pops (in the 70s and 80s). 
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Jan 2022
5:06pm, 24 Jan 2022
3,505 posts
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Groundhog
JWST update. Les than 1000 miles till L2. Then it somehow goes into an orbit around L2. It's at -200C or so and I guess it needs to get even cooler. As they have very cold moving parts to focus the mirror I wonder how they manage without lubrication, or what materials they use that can operate at such cold temperatures? |
Jan 2022
5:47pm, 24 Jan 2022
15,617 posts
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Cerrertonia
There's a nice guide to the mirrors on the NASA website: webb.nasa.gov |
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Jan 2022
5:59pm, 24 Jan 2022
3,512 posts
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Groundhog
Very interesting. All the mirror segments were made and assembled by February 2016, so they survived nearly 6 years without someone dropping a spanner on them.
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Jan 2022
7:48am, 25 Jan 2022
41,147 posts
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HappyG(rrr)
Apparently the shipping from California to Guiana was done by a musuc roadie company from Eggam, Surrey! mobile.twitter.com Precious cargo! G
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Jan 2022
8:59am, 25 Jan 2022
8,956 posts
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GordonG
Did they tap the mirror repeatedly, shouting 1 2, 1 2?
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Jan 2022
9:40am, 25 Jan 2022
41,151 posts
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HappyG(rrr)
Maybe Nasa can turn the JWST up to 11, get some really good pictures? G
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Jan 2022
11:53am, 31 Jan 2022
8,966 posts
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GordonG
this has made me smile and be a bit sad at the same time... xkcd.com |
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Mar 2022
5:27am, 17 Mar 2022
4,127 posts
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Groundhog
nasa.gov JWST has reached a mirror alignment milestone. There is a photo from it taken to check it's alignment. |
Mar 2022
6:58am, 17 Mar 2022
236 posts
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nme2no1
Thanks Groundhog. I had been monitoring the progress of JWST, but haven’t looked for a while. I am really looking forward to seeing the images it produces once it is fully operational. Even that mirror test has so much going on. |
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