Recent comments in /f/space
astro_pettit OP t1_j3osddz wrote
Reply to comment by TheVastReaches in My 1st ever star trail from space. More details in comments. by astro_pettit
Yes! The star arc slope changes as the star light passes through more dense atmos layers; i can talk about the visible natural phenomenology in a star trail photo for at least 30 minutes.
TheSpaceExplorer1 t1_j3os8zh wrote
Reply to comment by astro_pettit in My 1st ever star trail from space. More details in comments. by astro_pettit
That is an absolutely incredible picture! Do you have any plans to fly in space again?
PandaGoggles t1_j3os6ex wrote
Reply to comment by astro_pettit in My 1st ever star trail from space. More details in comments. by astro_pettit
That’s really cool. I bet the photo chem person enjoyed the challenge. When traveling with film I store it in a little shielded box. Usually TSA will check it by hand for me, but sometimes they’re really weird about it. Did you store your rolls in some sort of shielded box as well?
astro_pettit OP t1_j3orvlv wrote
Reply to comment by Voodoo_Masta in My 1st ever star trail from space. More details in comments. by astro_pettit
Normally there are 4 control moment gyros to hold station attitude, there was a failure so we were down to three and the control algorithm for this down mode was still being tweaked so some blips were expected
astro_pettit OP t1_j3orfks wrote
Reply to comment by OptimusSublime in My 1st ever star trail from space. More details in comments. by astro_pettit
ISO 800 film was not flown to ISS for long duration missions due to cosmic ray fogging (remember, this was only the 6th mission to station). I asked the photo folks and they happily flew some for me.
astro_pettit OP t1_j3oqxu5 wrote
Reply to comment by PandaGoggles in My 1st ever star trail from space. More details in comments. by astro_pettit
The nasa photo chemistry person would develop one roll, check it for cosmic ray fogging/low contrast, change the chemistry, and do another. It took perhaps 8 rolls to get it down
No_Maines_Land t1_j3oqspw wrote
Reply to comment by Drusgar in Amazing shot of our beautiful Atlantis! by wizwort
Yeah, so when I went through the big door failed, so no big reveal, just a side door. Got to see the looks on the faces of the next gang though!
astro_pettit OP t1_j3oqli4 wrote
Reply to comment by ajamesmccarthy in My 1st ever star trail from space. More details in comments. by astro_pettit
We have Bogan arms that can clamp on fixtures near the window and steadily hold the camera in position
Drusgar t1_j3opl4y wrote
Reply to comment by No_Maines_Land in Amazing shot of our beautiful Atlantis! by wizwort
Oh yeah, I saw that. It was pretty epic. Kind of a movie theater experience with loud music preparing you for the big reveal.
jimmydevice t1_j3omjcu wrote
Nice little show when it reenters. Saw the spacex burnup in PNW SE Wash, Very impressive.
[deleted] t1_j3omcmi wrote
Reply to comment by [deleted] in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
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[deleted] t1_j3om05i wrote
Reply to comment by [deleted] in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
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No_Maines_Land t1_j3olwkd wrote
Reply to comment by Drusgar in Amazing shot of our beautiful Atlantis! by wizwort
Not the shuttle bay doors, the exhibition doors.
Before entering the area with the shuttle, there is a film then a large garage like door (usually) opens exposing Atlantis. At least that was the set-up 5-19 years ago.
[deleted] t1_j3oln0e wrote
Reply to comment by [deleted] in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
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[deleted] t1_j3ojrai wrote
Reply to comment by [deleted] in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
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brit_motown t1_j3ojlli wrote
Reply to Amazing shot of our beautiful Atlantis! by wizwort
Saw the Kennedy one on our trip to Florida two bucket list ticks in one day the shuttle and the unlaunched apollo
[deleted] t1_j3ohow5 wrote
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TheDerpingWalrus t1_j3ohihc wrote
Reply to Amazing shot of our beautiful Atlantis! by wizwort
Just saw endeavor last week. Can't wait till they stand it up fully assembled
[deleted] t1_j3oh4vi wrote
Reply to comment by mainstreetmark in Amazing shot of our beautiful Atlantis! by wizwort
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[deleted] t1_j3od8fw wrote
Reply to comment by pmMeAllofIt in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
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saturnsnephew t1_j3oa5dr wrote
Reply to comment by Lucas_7437 in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
No it's not. America will do everything in their power to prevent debris from landing on inhabited areas. China and Russia literally poison they're people with every launch and China doesn't give a fuck where it's debris falls. The difference is the US tries to prevent this where the other knowingly does things that will cause harm.
Overcriticalengineer t1_j3o8gev wrote
Reply to comment by Lucas_7437 in Dead NASA satellite returns to Earth after 38 years | CNN by dem676
It’s also a satellite from almost forty years ago, versus a rocket stage launched in the past year. It also provided data for twenty years, instead of the fifteen minutes of utility that the rocket stage provided.
Edit: To add about the utility of the satellite: “That data helped shape the Montreal Protocol Agreement, an international agreement signed in 1987 by dozens of countries, that resulted in a dramatic decrease around the globe in the use of ozone-destroying chlorofluorocarbons (CFCs) – chemicals once commonly used in aerosol sprays, refrigeration and air conditioners.”
[deleted] t1_j3o7b2d wrote
Reply to Can someone explain what spacetime is? by Dusthip
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Drusgar t1_j3o2ohf wrote
Reply to comment by No_Maines_Land in Amazing shot of our beautiful Atlantis! by wizwort
When I was there it was suspended with the doors open. Do they close them for some reason? It's kind of a display, I figured they're just always open.
astro_pettit OP t1_j3osr8p wrote
Reply to comment by whiskysinger in My 1st ever star trail from space. More details in comments. by astro_pettit
Thanks for taking the time to answer; the physics behind the motion is different than what an Earth centric star trail would make you think.