Taken by me a while ago with, by today's standards, a really poor 640x480 Philips Toucan webcam on an 8" Celestron SCT

Amazing what you can do with a little patience.

Hi, I hope this is the right place to ask. I was playing around with a gravity simulator and happened to make a binary system where one of the objects had a satellite. The interesting thing was the satellite was orbiting its parent object at just the right speed so that as the parent object orbited the other object, the satellite stayed in the same spot at the center of the system. Is this at all possible in real life?

I took this in Jenner, CA (N of San Francisco) on August 22 around 10pm. I'm pretty sure it was facing north.

I am not only curious about the general color of the atmosphere, I am an artist and I want to approximate how a sunset would look like on these planets, what kind of different colors would the sky have if we were to stand on an imaginary platform on these planets. I have been googling this and even asking ai, but it's really hard to find the correct answer, because most telescope images are infrared or color modified. I found out that the most accurate representation of these planets is the color corrected version of the Voyager 2 pictures.

And even if I know the color of the atmosphere, I also need to know how thinner and thicker atmosphere behaves, on Earth we have Rayleigh scattering that determines the blue colour of the sky in daytime, so I think approximating a sunset is a difficult task. I'd like to have a gradient of colors ideally.

https://upload.wikimedia.org/wikipedia/commons/6/69/Uranus_Voyager2_color_calibrated.png

If you zoom in, you can see a Cyan color at the bottom rim of the planet, do I correctly assume that this is the color of the atmosphere? I also see some purple. I can also imagine that this is just some kind of optical (prismatic?) illusion/distortion of the lenses, I am not sure, I am confused.

https://upload.wikimedia.org/wikipedia/commons/b/b9/Neptune_Voyager2_color_calibrated.png

And this photo of Neptune. if you zoom in you can see a deep blue border at the top, which looks like the correct color of the atmosphere, because I read that since it's made of methane, it absorbs red and other colors. I also see some purple and yellow. The true color of these planets is kinda gray, less saturated then how it was shown earlier before the color recalibration, however their atmosphere may look cool.

Are there artistic depictions of the "sky" on these planets that are somewhat correct?
edit: Also, since the sun is farther away, would the stars be visible during daytime?

Tldr.: how would a sunset look like on these planets?

The Earth and our solar system is traveling extremely fast through space correct? So then if we leave our solar system hasn't the earth traveled quite a distance?

https://www.msn.com/en-us/news/technology/jupiter-sized-rogue-planet-detected-entering-our-solar-system/ar-AA1LjNRF#comments
just feels very fake, it claims to quote a bunch of agencies that havent talked about it. but it's on Microsoft's news so IDK

I was looking through gorgeous SPHERE instrument photos and I'm wondering, how are these stars with disks found? Are they taking huge images and going through them trying to spot objects? Are they following up on existing observations? Or is there some low detail sky survey to identify these objects by some clever technique?

Damnn I'm so freaking happy. This is the first time in my life i witnessed an orion so perfectly and even captured it in my camera... How's the click guys?? Share your similar experiences!

Hi all,

I’m a physics student looking to branch into astronomy. I’m planning to pick up An Introduction to Modern Astrophysics by Carroll & Ostlie (the big textbook), but before diving into that I’d like something lighter; more of a fun but still accurate and reasonably up-to-date read to get me into the field.

I’ve seen Neil deGrasse Tyson’s Astrophysics for People in a Hurry recommended here and there, but I’m not sure if that’s the best option or if there are better alternatives.

Any recommendations?

I was stargazing for maybe 20 minutes andnI saw 2 or 3 objects that resembled satellites, and were going at about the same speed, but were wobbling slightly instead of going perfectly straight. They also appeared to be speeding up and slowing down slightly. They had no blinking lights and appeared to stay the same size. I saw plenty of planes and satellites which were behaving normally during this time as well.

What could those have been?

As the title says. I enjoy star gazing but would like to be able to learn how to easily tell the difference between a satellite and a meteor. Thank you :D

If this is true, it is a good indication that it really is an artificial object.

hi! new here and first post. i don't usually get a chance to take photos of stars, im not sure if what im looking at is actually andromeda Or maybe the camera's expose messing something up. I had to zoom in to see it was a disc shape. any other cool things to note in this photo? thanks in advance! :)

The question pretty much says it. What data would they get from turning a JWST level telescope on our Sun that could tell them there's life here.

This is a graph of Miras varying brightness over the years. Pretty fascinating how drastically it changes btw.but why are there periodic gaps in this curve?

I am from the Southern Hemisphere and not an astronomer, so not familiar at all with anything in the north. I am interested to know what stars are visible in this image. I've scanned various star charts but can't identify them. I'm interested to know so I can compare this with other images of the same part of the sky.

As a background, this image is from a recent paper https://www.researchgate.net/publication/394040040_Aligned_multiple-transient_events_in_the_First_Palomar_Sky_Survey pages 11 and 24. The images were taken 27 July 1952 from Palomar.

Saw this tonight above France, is it something special or only a perfectly straight cloud?

The first four appeared to move in a similar orbit from left to right in a horizontal path. They were a constant light which lasted for about 30 seconds and gradually disappeared.

The fifth one moved vertically from north to south and had a trail (if my eyes didn’t deceive me) and lasted for about 5 seconds

The sixth one was in a complete different part of the sky from the rest and also appeared to have a constant light which lasted more than 20 seconds. Moving vertically from north to south.

The seventh and eighth appeared at the same time moving horizontally but in different orbits to each other lasting for about 20 seconds with constant light.

All of this happened within the span of 40 minutes. I live in a suburban city and sit outside in my balcony often and have never experienced this before.

I've seen many theories/thought exercises on how aliens almost certainly exist just based on the sheer size of the universe, and I've read into the Fermi Paradox and its potential solutions a bit. However, one thing I haven't had a clear answer to is how hard exactly have we looked for aliens via our current methods. As in, how telling is it that given our current efforts, we haven't found any concrete signs on alien life?

For example, say we were lost in a mall and looking for our parents, in this scenario, has the search for alien life been more akin to sitting at a bench and glancing at passerbys in our specific area, or more like we have their location and are able to find them anywhere in the mall?

Hello I saw this at around 22:39 today and was wondering what is that. I saw it from an island in Croatia.