tater Posted October 5, 2023 Share Posted October 5, 2023 (edited) Set to right before talk. They are working with Berkeley on using an objective mirror that already exists for a ground telescope as a SS launched space telescope—several meter dia objective. (7-8m, Webb is 6.5m) Edited October 5, 2023 by tater Quote Link to comment Share on other sites More sharing options...
tater Posted October 6, 2023 Share Posted October 6, 2023 I listened to a bunch of it sped up. Not much there in terms of new stuff. Quote Link to comment Share on other sites More sharing options...
darthgently Posted October 6, 2023 Share Posted October 6, 2023 (edited) 1 hour ago, tater said: They are working with Berkeley on using an objective mirror that already exists for a ground telescope as a SS launched space telescope—several meter dia objective. (7-8m, Webb is 6.5m) Here is the intrusive thought I keep experiencing wrt space telescopes: Take the origami JWST design, folded up, and scale it up to fill SS cargo bay. How big would that mirror be unfolded? How many more bands could have supporting sensors on this bigger version given 150mt payload availability and existing sensors wouldn't be scaled up with mirrors, chassis, etc Edited October 6, 2023 by darthgently Quote Link to comment Share on other sites More sharing options...
Royalswissarmyknife Posted October 6, 2023 Share Posted October 6, 2023 56 minutes ago, darthgently said: Here is the intrusive thought I keep experiencing wrt space telescopes: Take the origami JWST design, folded up, and scale it up to fill SS cargo bay. How big would that mirror be unfolded? How many more bands could have supporting sensors on this bigger version given 150mt payload availability and existing sensors wouldn't be scaled up with mirrors, chassis, etc Large Ultraviolet Optical Infrared Surveyor - Wikipedia Quote Link to comment Share on other sites More sharing options...
darthgently Posted October 6, 2023 Share Posted October 6, 2023 46 minutes ago, Royalswissarmyknife said: Large Ultraviolet Optical Infrared Surveyor - Wikipedia Exciting stuff! Quote Link to comment Share on other sites More sharing options...
tater Posted October 6, 2023 Share Posted October 6, 2023 Quote Link to comment Share on other sites More sharing options...
tater Posted October 6, 2023 Share Posted October 6, 2023 Quote Link to comment Share on other sites More sharing options...
tater Posted October 6, 2023 Share Posted October 6, 2023 Quote Link to comment Share on other sites More sharing options...
zolotiyeruki Posted October 7, 2023 Share Posted October 7, 2023 (edited) I have something to contribute. The clouds last night broke just in time for my teenage daughter to catch this as they passed overhead: Edited October 8, 2023 by zolotiyeruki Quote Link to comment Share on other sites More sharing options...
bigyihsuan Posted October 7, 2023 Share Posted October 7, 2023 2 hours ago, zolotiyeruki said: EDIT: grrr, how come I can't attach a photo? What it was: a photo, taken from a cell phone, of a Starlink conga line. The forum doesn't support uploading images directly, you need to upload it to a site like Imgur and share the link to the photo. Quote Link to comment Share on other sites More sharing options...
zolotiyeruki Posted October 8, 2023 Share Posted October 8, 2023 On 10/7/2023 at 9:50 AM, bigyihsuan said: The forum doesn't support uploading images directly, you need to upload it to a site like Imgur and share the link to the photo. You're right--it's been a while since I've posted images on the KSP forum, and I had forgotten the need for imgur. I've updated my post with the (potato-quality) photo. Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted October 8, 2023 Share Posted October 8, 2023 Nice! I haven't been lucky enough to see a Starlink train myself, but I can see why astronomers are peeved. Quote Link to comment Share on other sites More sharing options...
Pthigrivi Posted October 8, 2023 Share Posted October 8, 2023 (edited) 4 hours ago, StrandedonEarth said: Nice! I haven't been lucky enough to see a Starlink train myself, but I can see why astronomers are peeved. My folks have a place in the Abacos and they've seen some incredible launches. Im a busy millennial though so Im not sure what this 'vacation' word means. Id thought some of the issues with actual, non-amateur astronomy had been mitigated? Was that propaganda? Edited October 8, 2023 by Pthigrivi Quote Link to comment Share on other sites More sharing options...
cubinator Posted October 9, 2023 Share Posted October 9, 2023 44 minutes ago, Pthigrivi said: My folks have a place in the Abacos and they've seen some incredible launches. Im a busy millennial though so Im not sure what this 'vacation' word means. Id thought some of the issues with actual, non-amateur astronomy had been mitigated? Was that propaganda? Some of the issues have been mitigated, but I guess it's not as though the satellites weren't there at all. Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted October 9, 2023 Share Posted October 9, 2023 My understanding is that during steady state observation, Starlink is essentially invisible. Not sure how far that invisibility will last against a 10 meter telescope, I would love to see data on that. While maneuvering (especially right after launch) they are still very bright though, that's a harder problem to solve. Quote Link to comment Share on other sites More sharing options...
darthgently Posted October 9, 2023 Share Posted October 9, 2023 1 hour ago, Ultimate Steve said: My understanding is that during steady state observation, Starlink is essentially invisible. Not sure how far that invisibility will last against a 10 meter telescope, I would love to see data on that. While maneuvering (especially right after launch) they are still very bright though, that's a harder problem to solve. If they are eventually deorbited at about the same rate they are being launched there will be a nice light show somewhere every few nights. But maybe Starlink/SpaceX can coordinate deorbit timing and location with major telescope schedules and targets to avoid photo bombing too often Quote Link to comment Share on other sites More sharing options...
tater Posted October 9, 2023 Share Posted October 9, 2023 Quote Link to comment Share on other sites More sharing options...
tater Posted October 9, 2023 Share Posted October 9, 2023 Scrubbed for wind Quote Link to comment Share on other sites More sharing options...
KSK Posted October 9, 2023 Share Posted October 9, 2023 17 hours ago, cubinator said: Some of the issues have been mitigated, but I guess it's not as though the satellites weren't there at all. Yeah, this is all kicking off again, now that Project Kuiper is actually launching stuff. Some of the issues have been mitigated but SpaceX scrapped one mitigation which would have interfered with their optical communication system. More generally, Starlink satellites are fairly dark but not quite as dark as astronomers would like. They're pitching for satellites to have a brightness of no more than apparent magnitude 7, and Starlink satellites are typically 2.5 to 6 times brighter than that still. According to Wikipedia, the typical human eye can see objects down to an apparent magnitude of 6.5-7.0, so it looks like astronomers are aiming for satellite megaconstellations to be invisible to the naked eye. Which seems like a reasonable compromise if achievable. Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted October 10, 2023 Share Posted October 10, 2023 Not really a problem until it starts Global Cooling, amirite? Quote Link to comment Share on other sites More sharing options...
Nuke Posted October 10, 2023 Share Posted October 10, 2023 i think the astronomers have got this all wrong, use all those reusable rockets and launch more space telescopes. Quote Link to comment Share on other sites More sharing options...
Royalswissarmyknife Posted October 10, 2023 Share Posted October 10, 2023 6 minutes ago, Nuke said: i think the astronomers have got this all wrong, use all those reusable rockets and launch more space telescopes. What if I dont have millions. Quote Link to comment Share on other sites More sharing options...
Nuke Posted October 10, 2023 Share Posted October 10, 2023 3 minutes ago, Royalswissarmyknife said: What if I dont have millions. well then do a ride share with a bunch of other astronomers. Quote Link to comment Share on other sites More sharing options...
darthgently Posted October 10, 2023 Share Posted October 10, 2023 Seriously, why not start ongoing crowdfunding of a growing constellation of budget orbital telescopes? Amateurs could timeshare access to them. Not JWST grade of course, but even a 6 inch reflector above the atmosphere could make for some great viewing. Of course, it wouldn't be the same as standing in a field at night swatting mosquitoes waiting for the clouds to move Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted October 10, 2023 Share Posted October 10, 2023 1 hour ago, darthgently said: Seriously, why not start ongoing crowdfunding of a growing constellation of budget orbital telescopes? Amateurs could timeshare access to them. Not JWST grade of course, but even a 6 inch reflector above the atmosphere could make for some great viewing. Of course, it wouldn't be the same as standing in a field at night swatting mosquitoes waiting for the clouds to move A few million dollars plus a few years of engineering salaries (for just one of these satellites) is quite the crowdfunding campaign and I'm dubious that anything beyond a cubesat designed and built by unpaid volunteers could be reasonably done for the purpose of amateur astronomy, at least with the kind of money that is likely to be collected. Quote Link to comment Share on other sites More sharing options...
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