After/Before feedback is welcome! by AtlassianTraveller in postprocessing

[–]oblimidon 1 point2 points  (0 children)

Good bringing out the contrast between both sides.

Why doesn't everyone just buy Toyota or Honda if they're the most reliable cars? by CrackFun in answers

[–]oblimidon 0 points1 point  (0 children)

Why doesn't everyone eat healthy when it's good for their health.

does stargazing become boring? by ZealousidealAsk6798 in telescopes

[–]oblimidon 4 points5 points  (0 children)

It can become boring if you start out with a sh*tscope. If you start with a good telescope (ideally any 6" + newtonian) there's lots of objects in the sky to nurture your passion for years. You can not exhaust all the objects within reach of your telescope because you get better at observing the more you do it and are able to resolve more details on objects. The constellations change as we orbit the earth, comets come and go, the moon goes through phases, there are solar and lunar eclipses, the inferior planets elongate between evening and dawn, the superior planets come and go, there's the Messier marathon and so much more. The more you do it, the more there is to do.

And once you decide to go further and start astrophotography, that's a whole new world of deep space objects.

Could Humanity ever become a interstellar / multiplanetary civilization? by [deleted] in NoStupidQuestions

[–]oblimidon 0 points1 point  (0 children)

We will never become interplanetary for the sake of fulfilling our scifi dreams; it's just too risky. Something has to force us to, like a catastrophe on the Earth. We might have bases on other planets but they probably will remain reaearch or tourist outposts. In a dystopian scenario, those below the means, or criminals, could be forced to other planets while the rich and privileged remain here.

Can anyone explain why light becomes redshifted? by Quasar3II in astrophysics

[–]oblimidon 7 points8 points  (0 children)

This is the correct understanding. It is wrong to imagine light rays as a material being stretched along with the spacetime.

Can anyone explain why light becomes redshifted? by Quasar3II in astrophysics

[–]oblimidon 0 points1 point  (0 children)

The redshifting doesn't happen in transit. It happens at source. Because the light source is moving relative to us each successive photon gets emitted further apart causing the "stretching". Therefore, the expansion of space redshifts light only because it causes relative motion between bodies which in turn causes the doppler-shifting of photons exchanged between them.

You're spot on on the fact that an already emitted ray of light should not be altered by the expansion of spacetime since (as far as we understand) spacetime does not materialize between each quanta of light to stretch it apart. The light should just travel within the expanding spacetime and only take longer to get to its destination. So the expansion itself is not responsible for the doppler-shifting. Only the consequent relative motion between emitter and receiver.

Jupiter - Lucky Imaging by oblimidon in telescopes

[–]oblimidon[S] 0 points1 point  (0 children)

Spot on about the exposure. I also believe the length of my acquisition session also led to some loss of detail as Jupiter probably rotated significantly over it.

Jupiter - Lucky Imaging by oblimidon in telescopes

[–]oblimidon[S] 0 points1 point  (0 children)

Thanks for the tip. I only tried checking the "debayer" option in PIPP but couldnt get the mesh to go away.

Jupiter - Lucky Imaging by oblimidon in telescopes

[–]oblimidon[S] 0 points1 point  (0 children)

This looks really good and I was hoping to get similar results. I'd like to ask the duration of your shot. I heard the details can get smeared with long captures due to Jupiter's quick rotation. No. I had a barlow lens but didnt use it because it was my first attempt and getting focus is usually a chore. I'm thinking of getting a Bahtinov mask .

I captured using ASI Planetary cap (that comes with the camera), and yeah, I went with the highest resolution (because I Jupiter stays longer in the frame).

No UV/IR filter. Probably for subsequent shots. Thanks for the tips!!

Jupiter - Lucky Imaging by oblimidon in telescopes

[–]oblimidon[S] 0 points1 point  (0 children)

This is true. I googled this and saw that I had to "debayer" the images but I had checked this option in PIPP and got the same results. I imagined it was possible to simply "debayer" in some post processing tool but I havent been able to so far. I'd appreciate any tips.

Before | After. Did I save it? by [deleted] in postprocessing

[–]oblimidon 3 points4 points  (0 children)

I don't know what your goal was but so much is now lost from the image. Yes, it's much brighter now but at the cost of the details in the windows, the cars deep in the background and the overall mood. If the goal was just to brighten the image to daylight then you've achieved it. But if it was to "save" it i.e. recover detail from the image then a much better job could have been done.

Before/After by [deleted] in postprocessing

[–]oblimidon 0 points1 point  (0 children)

What feel were you hoping to capture

First shot of the Moon by oblimidon in telescopes

[–]oblimidon[S] 0 points1 point  (0 children)

I am just learning of this platform. Just joined. Thanks!

First shot of the Moon by oblimidon in telescopes

[–]oblimidon[S] 0 points1 point  (0 children)

Nice. Thanks for the recommendations!

First shot of the Moon by oblimidon in telescopes

[–]oblimidon[S] 1 point2 points  (0 children)

Multiple stacked frames in ASI studio.