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Handen posted:Could the imaging team not eliminate the diffraction spikes entirely with multiple exposures taken at slight rotation from each other? I.e., take one exposure, then rotate the entire craft 7.5°, take the same exposure again, and then end up with two images of the same field with diffraction spikes rotated 7.5° off-axis from the previous exposure, which can then be stacked to eliminate the differences between the two exposures, thereby eliminating BOTH sets of diffraction spikes in the process? I seem to recall that the Astronomers don't mind the diffraction spikes that much as long as they don't block anything important, as they can get quite a bit of information about the star from the details in them. Obviously if they're not relevant and blocking something they want to see then yeah, getting rid of them would be the go.
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Jul 15, 2022 05:04
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Handen posted:Could the imaging team not eliminate the diffraction spikes entirely with multiple exposures taken at slight rotation from each other? I.e., take one exposure, then rotate the entire craft 7.5°, take the same exposure again, and then end up with two images of the same field with diffraction spikes rotated 7.5° off-axis from the previous exposure, which can then be stacked to eliminate the differences between the two exposures, thereby eliminating BOTH sets of diffraction spikes in the process? I think this would produce a prettier picture for people to look at, but ruin it for astronomy. #1 the ever so slight imperfections in the image that happen because the main mirror isn't a platonic parabola but a bunch of hexagons, those would also get differenced. I think that would make blurring or distortion to everything away from the center of the picture. #2 The double set of spikes would still contaminate data on things that astronomers care about. So now you'd have twice as much area near the big stars that is inaccurate spectrum or whatever. And even if you could do the re-point without using fuel, it would still be wear and tear on the gyro wheels. This thing's life is gonna be primarily limited by how much it has to maneuver. Plus it would take probably 10 times longer per photo, because maneuvering a spacecraft is slooooow.
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Jul 15, 2022 13:34
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You Are A Elf posted:I hope whatever alien civilization may come across the Voyager golden record has a blast listening to it should they decipher how to play it. I was curious if you could buy an exact (except for the gold) replica of this record and the answer is not really, because the real thing plays at like 16 RPM. They released an approximation of it in LP form a few years ago though
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Jul 15, 2022 13:35
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Klyith posted:I think this would produce a prettier picture for people to look at, but ruin it for astronomy. Wouldn't it be easier to just rotate the whole universe 7.5 degrees instead?
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Jul 15, 2022 13:48
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Nocheez posted:Wouldn't it be easier to just rotate the whole universe 7.5 degrees instead? Look ya can't change the rotational speed of the universes if ya do not want the cosmic needle to playback the music music at a different speed as intended. Do you want the cosmic choir of this our infinite universe to sound like god drat chipmunks, cos that's what you're gonna get.
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Jul 15, 2022 14:04
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The Jupiter picture looks like 30 year old poo poo give me the HPC processed fake color stuff
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Jul 15, 2022 14:47
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I think the Jupiter pics were just a test or calibration thing. NASA streamed this talk Wednesday and one of the scientists said they are going to be taking detailed pictures of Jupiter's cloud structures. https://www.youtube.com/watch?v=GyDONOJ3_rw
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Jul 15, 2022 14:53
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ProperCoochie posted:I think the Jupiter pics were just a test or calibration thing. yeah I feel like I read that they took those Jupiter pics to test some stuff out and see if it could even do it, and the result was "JWST is bad loving rear end, even the capabilities tests are insane" that Jupiter ring made me go 
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Jul 15, 2022 14:55
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Lawman 0 posted:Honestly we should beam out dick and T&A pics and just see what happens imho. BAGS FLY AT NOON posted:Do you WANT horny aliens?! Space Tinder! Spinder 
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Jul 15, 2022 15:25
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Last night, I watched the Nova episode on how this got to where it is today, and found it end-to-end bananas from an engineering and logistics standpoint. Every step of the way seemed have non-negotiable blockers that had to be passed 100% with zero margin for error. I'd probably be cheering if it made it to its orbit but had some glaring error like it couldn't send data back, let alone that it does totally work and is incredible.
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Jul 15, 2022 18:43
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I knew the new images were much more pronounced than hubble's, but it wasn't until I saw the Scishow Space episode about the new images that it really sunk in as they overlaid them on each other. poo poo is WILD. https://www.youtube.com/watch?v=Lf4EDcjMtmw&hd=1 also, Hank has some profound words about the new images making people feel small. I really like how he put things, especially towards the end. and also the line "all the time we've spent on earth, from Brachiosaurs to BTS" is funny to me https://www.youtube.com/watch?v=-6Npwza43NE&hd=1 You Are A Elf posted:I hope whatever alien civilization may come across the Voyager golden record has a blast listening to it should they decipher how to play it. https://www.youtube.com/watch?v=L6zulqXLPUw&hd=1 Skeleton Ape posted:I was curious if you could buy an exact (except for the gold) replica of this record and the answer is not really, because the real thing plays at like 16 RPM. They released an approximation of it in LP form a few years ago though
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Jul 15, 2022 22:37
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This popped up on my YouTube to show where that binary nebula is. https://www.youtube.com/watch?v=K0pg1dDkc6A
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Jul 16, 2022 19:27
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So if we’re seeing billions of years into the past, why don’t they turn the scope around and look into future wavelengths?? They probably already have and don’t want us to know!!1
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Jul 16, 2022 23:25
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You Are A Elf posted:
looks more like the pig is making GBS threads a huge diarrhea cloud
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Jul 17, 2022 04:03
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It was mentioned before but a few weeks ago the telescope got smacked by a tiny meteor and it did some good damage 
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Jul 18, 2022 00:17
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and yet it's still giving us these amazing images and performing better than expected 
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Jul 18, 2022 02:21
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Poor thing's gonna look like Season 4 Battlestar Galactica by the end of the decade.
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Jul 18, 2022 02:49
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AaaaaaaaAAAAAAAAA https://www.businessinsider.com/webb-space-telescope-found-oldest-and-most-distant-known-galaxy-2022-7 In a single work week, NASA's James Webb Space Telescope broke the record for the oldest galaxy ever observed
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Jul 21, 2022 01:38
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Nuts and Gum posted:So if we’re seeing billions of years into the past, why don’t they turn the scope around and look into future wavelengths??
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Jul 21, 2022 03:50
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Seth Pecksniff posted:AaaaaaaaAAAAAAAAA Apparently this is a bit less confirmed than the reports are making it out to be, at least for now... https://www.youtube.com/watch?v=RJe0s1iDYLc
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Jul 21, 2022 05:27
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when will we got more pics god damnit
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Jul 21, 2022 05:52
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AHH F/UGH posted:when will we got more pics god damnit 
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Jul 21, 2022 06:05
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ain't no one wanna see your deviantart page bro
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Jul 21, 2022 06:10
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Less pics, LESS pics plz
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Jul 21, 2022 19:29
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LanceHunter posted:Apparently this is a bit less confirmed than the reports are making it out to be, at least for now... I will find and destroy the James Webb Space Telescope for lying to me
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Jul 21, 2022 19:30
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just gonna take better pictures of both galaxies real quick and see whats up nbd
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Jul 21, 2022 19:32
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AHH F/UGH posted:when will we got more pics god damnit how about now I got sick of waiting and spent my evening downloading 8 gigs of raw data of a target that doesn't seem to have been released yet based on a cursory twitter search and cobbled together this poorly processed superzoom of the Large Magellanic Cloud As far as I know yall are the second people to see this after gip discord 
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Jul 25, 2022 03:26
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shame on an IGA posted:how about now I got sick of waiting and spent my evening downloading 8 gigs of raw data of a target that doesn't seem to have been released yet based on a cursory twitter search and cobbled together this poorly processed superzoom of the Large Magellanic Cloud 
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Jul 25, 2022 03:32
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shame on an IGA posted:how about now I got sick of waiting and spent my evening downloading 8 gigs of raw data of a target that doesn't seem to have been released yet based on a cursory twitter search and cobbled together this poorly processed superzoom of the Large Magellanic Cloud Every time I see stuff like this it just absolutely blows my mind how infinite the universe really is
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Jul 25, 2022 03:34
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that's the red rectangle on this zoomed out pic
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Jul 25, 2022 03:39
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shame on an IGA posted:how about now I got sick of waiting and spent my evening downloading 8 gigs of raw data of a target that doesn't seem to have been released yet based on a cursory twitter search and cobbled together this poorly processed superzoom of the Large Magellanic Cloud Holy moly 
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Jul 25, 2022 04:07
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Why do I feel a large sense of vertigo all of a sudden?
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Jul 25, 2022 04:07
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Confusedslight posted:Why do I feel a large sense of vertigo all of a sudden? Too much drugs? Not enough drugs?
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Jul 25, 2022 04:08
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shame on an IGA posted:how about now I got sick of waiting and spent my evening downloading 8 gigs of raw data of a target that doesn't seem to have been released yet based on a cursory twitter search and cobbled together this poorly processed superzoom of the Large Magellanic Cloud 
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Jul 25, 2022 05:48
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Demon Of The Fall posted:It was mentioned before but a few weeks ago the telescope got smacked by a tiny meteor and it did some good damage That's not good... it's only been deployed for a short while so far, so it's probably going to get more strikes like this.  Edit: "Engineers are still modeling how frequently such events will occur. "It is not yet clear whether the May 2022 hit to segment C3 was a rare event," the team wrote. By "rare," they said it is possible that they happened to get a high-energy impact that should statistically happen only once every few years. Alternatively, it may be that Webb is "more susceptible to damage by micrometeoroids than pre-launch modeling predicted," the team wrote. Modeling is ongoing to estimate the hazardous population of micrometeoroids and to figure out remedies, such as restricting pointing direction. One remedy could be minimizing the amount of time Webb points directly into its orbital direction, "which statistically has higher micrometeoroid rates and energies," the team wrote. Main mirror performance is assessed by how much it deforms starlight, according to Astronomy magazine, and measured using what scientists call wavefront error root mean square. When Webb's mission began, the affected C3 segment had a wavefront error of 56 nanometers rms, which was in line with the 17 other mirror portions. Post-impact, however, the error increased to 258 nm rms, but realignments to the mirror segments as a whole reduced the overall impact to just 59 nm rms. For the time being, the team wrote Webb's alignment is well within performance limits, as the realigned mirror segments are "about 5-10 nm rms above the previous best wavefront error rms values." From https://www.space.com/james-webb-space-telescope-micrometeoroid-damage. Bula Vinaka fucked around with this message at 06:21 on Jul 25, 2022 |
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Jul 25, 2022 06:16
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Bula Vinaka posted:That's not good... it's only been deployed for a short while so far, so it's probably going to get more strikes like this. Those thresholds are wild. Why didn’t they just install a mosquito zapper at the tip?
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Jul 25, 2022 19:57
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I've been hesitant to bump this thread because I didn't want to get peoples' hopes up BUT DAT NEW poo poo JUST DROPPED https://www.nasa.gov/feature/goddard/2022/webb-captures-stellar-gymnastics-in-the-cartwheel-galaxy 
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Aug 2, 2022 17:04
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ProperCoochie posted:I've been hesitant to bump this thread because I didn't want to get peoples' hopes up BUT DAT NEW poo poo JUST DROPPED Oh my
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Aug 2, 2022 22:50
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Fallows posted:Oh my It's missing the ring.
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Aug 2, 2022 23:13
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Those galaxies are 500 million light years away and we are seeing them as if they’re just around the corner  LanceHunter posted:It's missing the ring. That’s why it’s called a ring galaxy 
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Aug 3, 2022 00:21
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