Comments on: Webb successfully inserted in final orbital position at the Sun-Earth Lagrange point https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/ Fri, 28 Jan 2022 18:50:26 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: BtB’s Original Mark https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1280216 Fri, 28 Jan 2022 18:50:26 +0000 https://behindtheblack.com/?p=82044#comment-1280216 Thanks Questioner- excellent informative video!

]]> By: Questioner https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1280212 Fri, 28 Jan 2022 18:18:45 +0000 https://behindtheblack.com/?p=82044#comment-1280212 How James Webb Orbits “Nothing”

https://www.youtube.com/watch?v=ybn8-_QV8Tg

A lucid explanation into the whole exercise of the Webb being put into an around L2 of Sun & Earth!

]]> By: BtB’s Original Mark https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1279424 Wed, 26 Jan 2022 09:02:28 +0000 https://behindtheblack.com/?p=82044#comment-1279424 I made a similar comment on the Pluto post above, but for those avoiding the Pluto debate, I’ll repeat it here.

The JWST is at L2, so NASA needs to manage the Webb’s orbit.
And while L2 is defined as a non-stable Lagrange point, it is not very unstable, and takes relatively little effort to stay near L2.

Can anyone explain what makes non-stable Lagrange points Very Unstable?

]]> By: John https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1279284 Tue, 25 Jan 2022 22:57:50 +0000 https://behindtheblack.com/?p=82044#comment-1279284 Sayomara, NASA has a Q&A that discusses Webb and the orbit. Since the thrusters have to be on the sun side of the shield, they will always be drifting towards the sun. If they ever cross the divide and start drifting away, mission over. They also have to have a wide orbit of L2 so the Earth doesn’t block the sun from powering the arrays.

I can’t wait for the thing to find the faint heat that has to radiate from alien megastructures ; )

]]> By: Lee S https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1279243 Tue, 25 Jan 2022 20:27:59 +0000 https://behindtheblack.com/?p=82044#comment-1279243 I gotta be a little bit proud here of our arian launch system accuracy… ( As a European..) apparently the accuracy of the launch has enabled an extra 5 years of propellant.
I’m just over the moon that the thing is in place, seems to be working just as planned, and I’m looking forward to first light. As our host has mentioned once or twice… It’s no replacement for Hubble, but by God I’m looking forward to seeing how the universe looked a few hundreds of million years after first light…
Any bets that it’s stranger than we ever imagined?

]]> By: Sayomara https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1278901 Tue, 25 Jan 2022 03:49:21 +0000 https://behindtheblack.com/?p=82044#comment-1278901 For some reason I always thought Webb was going to the L4 since its stable orbit. The L2 point is unstable thus needing to use fuel to stay in that orbit. I hope they spent a little bit of time thinking about refueling mission during the 15 years they were working on this thing. Be nice to add a decade or more onto the life of this by just dumping in another tank of gas =)

]]> By: Robert Zimmerman https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1278889 Tue, 25 Jan 2022 02:37:19 +0000 https://behindtheblack.com/?p=82044#comment-1278889 In reply to Michael McNeil.

Michael McNeil: Thank you. Fixed.

]]> By: Michael McNeil https://behindtheblack.com/behind-the-black/points-of-information/webb-successfully-inserted-in-final-orbital-position-at-the-sun-earth-lagrange-point/#comment-1278863 Tue, 25 Jan 2022 01:19:02 +0000 https://behindtheblack.com/?p=82044#comment-1278863 Typo alert: 2nd to the last word: should be “distant” rather than “distance.”

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