Recent comments in /f/space
Hector_Savage_ t1_j3gy7cg wrote
Oh s**t! Don Pettit himself is here on this sub! Didn’t know that. I watched many videos where you were interviewed, sir, you are a legend! And beautiful picture
[deleted] t1_j3gxfi8 wrote
[removed]
FriedFreya t1_j3gx2mg wrote
This photo is so beautiful, I am literally teary typing this. Thank you so much for sharing.
[deleted] t1_j3gwb0r wrote
Reply to The Orion Nebula by Cosmo-Curious
[removed]
[deleted] t1_j3graoj wrote
Reply to The Orion Nebula by Cosmo-Curious
[removed]
[deleted] t1_j3gq9xn wrote
Reply to The Orion Nebula by Cosmo-Curious
[removed]
[deleted] t1_j3gokmi wrote
Reply to The Orion Nebula by Cosmo-Curious
[removed]
DanceWitty136 t1_j3gof9y wrote
Reply to comment by Riegel_Haribo in A moon you haven't seen 1000x: I composed Saturn's moon Dione crossing in front of Titan, seen from Cassini spacecraft - a red-green-blue sequence of images for color showing it's movement over three minutes by Riegel_Haribo
Stuff like this always grabs my attention. Ty for posting
Cosmo-Curious OP t1_j3gockt wrote
Reply to The Orion Nebula by Cosmo-Curious
Camera - ASI533mm Pro Scope - GT71 Mount - HEQ5
17 hours of integration
Really happy with how this one came out compared to my previous attempts. I got the chance to shoot from under a bortle 4 sky compared to my usual 9.
CoolAndyNeat t1_j3go369 wrote
It’s amazing how that much movement happened in only 65 seconds. Awesome photo!
[deleted] t1_j3gn7yl wrote
[removed]
[deleted] t1_j3gn13t wrote
[removed]
[deleted] t1_j3gfoy7 wrote
[removed]
Abject_Shoulder_1182 t1_j3gfanh wrote
Epic! I love the colors, especially the key lime pie 😊
Scholesie09 t1_j3ge92n wrote
Reply to comment by FastWalkingShortGuy in My 1st ever star trail from space. More details in comments. by astro_pettit
It's not really to do with the rotation of the earth, the iss is moving across the face of the earth which moves the thunderstorm straight left, but it's also rotating as it orbits to keep the same side facing earth, so relative to the background stars it is rotating, getting the curved trails.
[deleted] t1_j3gbtnb wrote
[removed]
MD_Tarnished t1_j3g5fp9 wrote
How many astronauts are in space now? Seems like we can see space pictures quite often
RandomSpaceCruzer OP t1_j3g4blp wrote
Shot in CA, SF Bay Area. Got a lucky clear patch in sky last night and took the shot.
Lumix S1
Sigma 150-600mm Sports
F6.3
1/2000
600mm
ISO 100
PandaGoggles t1_j3g45zq wrote
Reply to comment by astro_pettit in My 1st ever star trail from space. More details in comments. by astro_pettit
This is absolutely the coolest thing. What an interesting description. We’re the first few rolls developed usable, and what effect do the cosmic rays have, like do they increase noise?
Riegel_Haribo OP t1_j3g27iu wrote
Reply to comment by Poop_Taxi in A moon you haven't seen 1000x: I composed Saturn's moon Dione crossing in front of Titan, seen from Cassini spacecraft - a red-green-blue sequence of images for color showing it's movement over three minutes by Riegel_Haribo
Going back to the nine-layer oversampled composition, here is 2048x2048 (double the source resolution) with no sharpening, but craters of the rotating moon aligned instead of the eclipse edge. https://i.imgur.com/trbuGZc.png
I tried an AI upsampler and it turned this into space junk. Titan's atmosphere IS blurry. https://i.imgur.com/xx3CJA1.png
I could put multiple high-res elements together to make a fake occultation, or even do a re-assembly of the transit in original moon colors, but I'm not a McCarthy. This is light right out of the telescope.
[deleted] t1_j3g0lne wrote
[removed]
whiskysinger t1_j3fzhrd wrote
Reply to comment by lith1x in My 1st ever star trail from space. More details in comments. by astro_pettit
Yes - it is exactly the same mechanism as the star trails taken from Earth's surface. Except the ISS is orbiting much quicker than the Earth is rotating. This is why the trails in this photo are so long for such a short exposure*.
Interestingly, the celestial pole is different on the iss than what we are used to on earth (Polaris in the northern hemisphere) because the orbital axis is not the same as Earth's axis of rotation, as demonstrated in the gif below.
https://gfycat.com/meagerscientificbengaltiger
*The ISS takes 90 minutes to orbit the earth. This means it is completing one trip around its orbital axis 16 times per earth day. The photo took 65 seconds of exposure. To capture star trails of this length on earth would take 16 x 65 seconds = 1040 seconds = 17m20s of exposure. (I think! Please correct me if I'm wrong)
[deleted] OP t1_j3gygwr wrote
Reply to New Earth-mass planet found 16 light years away by [deleted]
[removed]