/sci/ - Science & Math » Thread #14011979

1MiB, 1504x1005, NASA-Spitzer-Space-Telescope-James-Vaughan-SpaceFlight-Insider-image-1.png

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Anonymous Sat 25 Dec 19:00:31 2021 No.14011979 View Reply Original Report

Quoted By: >>14012022 >>14012029 >>14013185

What exactly is the difference between JW telescope and Spitzer Space Telescope?
Both seem to do the same thing and this launch is overhyped.

Anonymous

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Anonymous Sat 25 Dec 2021 19:08:30 No.14012005 Report

Quoted By: >>14012093

Low quality bait. JWST is 2 orders of magnitude more sensitive in imaging. Spitzer couldn't do near infrared spectroscopy at all, much less high sensitivity mutli-object spectroscopy. Also since it's cryogen ran out years ago all Spitzer could do was image in two fixed filters, and it was deactivated.

Anonymous

Anonymous Sat 25 Dec 2021 19:14:45 No.14012022 Report

Quoted By: >>14012093 >>14012095

>>14011979
JWST has a much larger mirror, far more sensitive and powerful equipment, and isn’t limited to a supply of coolant since it has a heat shield and is farther away from Earth, allowing it to remain cold enough to properly use its infrared equipment in perpetuity.

Anonymous

Anonymous Sat 25 Dec 2021 19:18:22 No.14012029 Report

Quoted By: >>14012093 >>14012289

>>14011979
You shouldn't be comparing JWST to Spitzer, you low IQ christfag NPC cattle.

You should be comparing JWST to LUVOIR.

LUVOIR was supposed to be the next generation spaced telescope, but it's been downgraded so much due to NASA not having enough money that LUVOIR is now not going to be much better than JWST.

LUVOIR went from a proposed 15m aperture, to a 6m aperture in the latest proposal.

Anonymous

Anonymous Sat 25 Dec 2021 19:38:44 No.14012093 Report

Quoted By:

>>14012005
>>14012022
Interesting. Thanks.
>>14012029
Christfag?
I just googled that telescope, it seems pretty based.

Anonymous

Anonymous Sat 25 Dec 2021 19:39:55 No.14012095 Report

Quoted By: >>14013200

>>14012022
>to properly use its infrared equipment in perpetuity
>in perpetuity
It's rated for a minimum of 5 and a half years.

Anonymous

Anonymous Sat 25 Dec 2021 20:50:00 No.14012289 Report

Quoted By:

>>14012029
Spitzer is much more comparable to JWST than LUVOIR retard. Both of them covered the near and mid infrared, LUVOIR only covers the short end of the NIR like HST.

Anonymous

Anonymous Sun 26 Dec 2021 01:08:20 No.14013185 Report

Quoted By:

>>14011979
tl;dr James Webb is fucking enormous

Anonymous

Anonymous Sun 26 Dec 2021 01:11:44 No.14013200 Report

Quoted By:

>>14012095
Only due to propellant supply for desaturating the reaction wheels
There will be attitude and balance related solutions proposed for this eventually (if you move the mass of the telescope to one side or another the solar radiation pressure will try to spin it up, which if you do it correctly will let you desaturate your reaction wheels)

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