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Old 01-09-2022, 09:16 PM   #81
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Now the 5 and a half month job of cooling it down, aligning it and getting it settled in L2.

Glad deployment went off without a hitch. So many moving parts throughout the process you'd figure so.ething would create a hiccup.

Can't wait for their gleeful release of its 1st batch of images.
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Old 01-09-2022, 09:59 PM   #82
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I think it would be really cool if the first photos paid homage to Hubble by re-creating some of its most famous photos in higher resolution.
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Old 01-09-2022, 11:08 PM   #83
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I think it would be really cool if the first photos paid homage to Hubble by re-creating some of its most famous photos in higher resolution.
James Webb‘a spectrum is red and infrared whereas Hubble was more visible light and UV. So you wouldn’t get the same but higher resolution photos out of Webb.
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Old 01-09-2022, 11:21 PM   #84
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James Webb‘a spectrum is red and infrared whereas Hubble was more visible light and UV. So you wouldn’t get the same but higher resolution photos out of Webb.
Not exactly, but I still think it'd be cool, maybe even moreso. And also, any kind of multispectral image needs to be false colour anyways so that we can can view it, so it might end up pretty close!

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Old 01-10-2022, 12:26 AM   #85
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The Hubble deep field has a big cross-hair on it. Webb will see galaxies behind and consequently before it too. Will need the right alignment and substantial time though... Hopefully the good news on the remaining fuel will put that up in the queue.

Apparently the original deep field image had no scientific objective but was a directive from NASA to spark interest.
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Old 01-10-2022, 12:31 AM   #86
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Well Jinxes are massless so travel at the speed of light so there is plenty of time for the jinx to affect it.

Hopefully they behave more like neutrinos rather than photons.
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Old 01-10-2022, 01:18 PM   #87
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Not exactly, but I still think it'd be cool, maybe even moreso. And also, any kind of multispectral image needs to be false colour anyways so that we can can view it, so it might end up pretty close!
Exactly.



How it's done

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Old 01-23-2022, 05:47 PM   #88
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2022 is shaping up to be a big year for space observation.

The Most Exciting Telescope That No-one Is Talking About
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Old 01-23-2022, 07:58 PM   #89
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Since this was bumped, worth pointing out that the hurry up phase is almost done. Should be in the L2 location in about a day from now. Then we wait for this thing to calibrate and cool down.

Still cruising at a fair clip. Are there thrusters to slow it down, or is there some kind of force a the L2 location that stops it?
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Old 01-23-2022, 08:09 PM   #90
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Since this was bumped, worth pointing out that the hurry up phase is almost done. Should be in the L2 location in about a day from now. Then we wait for this thing to calibrate and cool down.

Still cruising at a fair clip. Are there thrusters to slow it down, or is there some kind of force a the L2 location that stops it?
It’s speed is given relative to earths. It orbits at the angular rate as the earth so its linear velocity is higher than the earth
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Old 01-24-2022, 09:04 AM   #91
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Since this was bumped, worth pointing out that the hurry up phase is almost done. Should be in the L2 location in about a day from now. Then we wait for this thing to calibrate and cool down.

Still cruising at a fair clip. Are there thrusters to slow it down, or is there some kind of force a the L2 location that stops it?
There are thrusters to slow it down, but it'll be pretty minimal changes.
As for a force at L2 that stops it, not really, but also kind of.

Essentially they've given in just enough of a push to get there with essentially zero speed (relative to earth).

It's kid of like putting up hill. You give it just enough of a push to get to the cup, and then it falls in.
They've given it enough of a push to get to L2, and when it gets there it'll settle into orbit around it (with some minor adjustments).
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Old 01-24-2022, 09:57 AM   #92
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There are thrusters to slow it down, but it'll be pretty minimal changes.

As for a force at L2 that stops it, not really, but also kind of.



Essentially they've given in just enough of a push to get there with essentially zero speed (relative to earth).



It's kid of like putting up hill. You give it just enough of a push to get to the cup, and then it falls in.

They've given it enough of a push to get to L2, and when it gets there it'll settle into orbit around it (with some minor adjustments).
Webb doesn't have reverse thrusters, the thrusters would be detrimental to keeping the telescope cold. They are doing it by using just enough speed to insert in orbit. It does have forward thrusters for station keeping though.
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Old 01-24-2022, 10:10 AM   #93
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Webb doesn't have reverse thrusters, the thrusters would be detrimental to keeping the telescope cold. They are doing it by using just enough speed to insert in orbit. It does have forward thrusters for station keeping though.
yeah, that's what I meant. They aren't there to stop it, just make any fine tuning once it's there.
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Old 01-24-2022, 12:18 PM   #94
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I am not smart enough, but I wish I had a career in astronomy. Not only does it seem awesome and interesting, but it feels like laying the groundwork for humanity's long term future and that is an important and noble task.

Makes me feel silly when I stress about everyday things.
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Old 01-24-2022, 12:23 PM   #95
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I am not smart enough, but I wish I had a career in astronomy. Not only does it seem awesome and interesting, but it feels like laying the groundwork for humanity's long term future and that is an important and noble task.

Makes me feel silly when I stress about everyday things.
I have also dreamed about making a career switch to something related to space, but my location and the amount of work I’d have to do to change to that career make it much more realistic to keep it as a hobby.
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Old 01-24-2022, 12:32 PM   #96
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https://twitter.com/user/status/1485695028622209032
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Old 01-24-2022, 01:15 PM   #97
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Now comes the cooling and finishing the alignment for 5 more months.

And you know they've been waiting to is that home on Lagrange dad joke since before it was launched lmao.
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Old 01-25-2022, 01:12 PM   #98
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A lot of the information provided on James Webb discusses how it will look at things that have been redshifted into the infrared and hence look far and old. That's cool from universe forming theories, but personally, I am more interested in the possibility of nearby life. Some of the media reports that James Webb will be able to look at planets, like in the Trappist-1 system, and detect if they have atmospheres. If they do have atmospheres it can detect if they have chemical signatures of life as we know it. To me, that would change my perspective on the universe a lot more than refinements on theories describing how early stars formed.
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Old 01-25-2022, 01:12 PM   #99
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Here's a picture of it in it's new home.



https://www.virtualtelescope.eu/2022...e-24-jan-2022/
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Old 01-25-2022, 01:14 PM   #100
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Oh, ya, I totally didn't need that arrow there. I would have found it myself.
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