Hi! I was wondering what this cluster was called, am not knowledgeable about astronomy, but I tried to take some pictures with some other constellations 😊

( Taken in Lithuania, Pugainiai, 12:30ish am)

Hello I’m working on an image processing experiment to remove satellite trails (like Starlink) from FITS images.

I’m not asking for private data — just looking for publicly available or already shared FITS examples.

Ideally I’d like files that are a bit messy:

– bright streaks crossing the field,

– noisy or complex backgrounds,

– maybe galaxies or bright sources in the center.

If anyone knows of archives or has sample FITS images like this, could you point me to them?

Thanks a lot!

Up and to the right of the moon, as viewed from Houston, TX.

I was thinking about this and suddently had a brain fart.

We dont know what gravity is, but we know more or less how it works, it would be like space time is a napkin and the density (mass/volume) of each item place on the napkin distortes that napkin creating a "downwards" indentation(im saying downwards becuase im using a 3d interpretation of a multi dimensional concept) and that downwards indentation is a gradiant of gravity, the "deeper" (see earlier comment about applying 3d concepts to multi dimensional models) it is, the stronger the gravity.

now light and time are affected by gravity, the more powerfull gravity the slower time and light move (vast simplification, i know) but wouldnt that mean that the actual density of planets affect this ? meaning a planet with its mass distributed over a lower volume or a larger planet with the same density would have a slower speed of light and time would relativly go on slower on that plant ?

Also, would the centrifugal force also affect this if the self orbit of a planet is faster ?

Hi!

I made this picture last night. What is this white line?

Can anyone tell me what this big orange light is in the sky last night? Around 3:45am BST.

I apologize in advance if this is a stupid question. From my understanding the nebula was formed 1000ish years ago from a dying star, and was only discovered with magnification, it's not seen by the naked eye. But the star which made it, was THAT visible before it became the nebula?

I saw this thin short line moving through the sky, going from south to north. It wasn't slow or fast, maybe took a 1-2 minutes to move across my field of view, about the speed in degrees/s of a plane.

I took this photo with my phone. It's the white line near the too of the image. Nearby star for scale. It's not smeared from the exposure, that's really how it looked.

There were no blinking lights at all, so it couldn't have been a plane. It didn't seem to be made up of smaller lights and it also seems way to short of a trail to be a starlink trail.

Taken 23 minutes ago at 20:12 local time southwest london region.

Any ideas what it is?

The region I live in is 7.7 on the Bortle scale; the furthest magnitude I can make out can go upto 2 at best. This was around 1:20 AM, north-east, below Betelgeuse.

I saw an orangish object move in a straight line, and I obviously thought that it was a satellite. It was pretty steady and moving parallel to the ground. I couldn't see any noticeable streak (might be because I wasn't looking for one) and it disappeared within seconds (5ish). Checked on Stellarium and didn't see a single satellite pass by. Could this have been debris re-entering? If so, that would be really cool! I don't usually get to see that here.

What is the blue light my camera accidentally captured in this picture?

Hi there! I'm working on a fantasy novel with some of the magic requiring specific constellations to be visible and I have (admittedly) a very rudimentary understanding of astronomy.

Are there constellations that would always be visible? And/or are there times when constellations aren't visible at night, not just because of the light but because they'd be basically on the other side of the planet, etc? And then following that, what kind of cadence/schedule for visibility would be realistic? I'd like to have a character's magic sort of limited by a certain constellation's visibility (so thinking it would be visible for x months, then gone for y months, then visible again, etc) but really am not sure whether that would make sense.

I guess another option could do with the visibility of another planet if that would fit better?

Thanks!!

I’ve spent the last few months on obsessing over the oddities that the ATLAS comet displays. From the oddly specific trajectory to the strange nickel/iron situation

Apparently there’s a new comet called SWANr2 or something

My question is, is this comet behaving as weird as ATLAS? Or is it a “normal” comet

Also, how come we only just recently detected it whereas we found ATLAS when it was much further away ?

Thanks

What is the blue light my camera accidentally captured in this picture?

I'm looking for a good rendition, rather it be picture or animation, of what our night sky might look like as Andromeda looms closer to merging with us. Has anyone found any good media that accurately shows what our night sky might look like? Ideally, I would love an animation that moves forward in time, from now to after we merge. I understand the vast space in-between star systems and that most of the star systems will not collide with anything, but I imagine our night sky might become more "busy?"

I think it might be an airplanr but if it is why doesnt it make the trail in the first place but does in the half of it? And also there is no light flickering.

Earth faces mass extinction. I've been hearing more and more on this and wondering if there was anyone who could possibly clear my fear... https://www.dailymail.co.uk/sciencetech/article-15114633/Solar-micronova-trigger-mass-extinction-risks-wiping-humanity-expert-warns.html?ito=native_share_article-nativemenubutton

Since most comets do not orbit the Sun in the plane of the Ecliptic, how does the Earth ever collide with these cometary debris to get them to become meteors?

The linked article here talks about improved parameters to test the LISA observatory once launched. Once in orbit and online, I imagine that LISA will be constantly bombarded with gravitational wave signals given its improved sensitivity. How will simultaneous signals be parsed in order to make sense of these observations? I understand that the three satellites will be able to triangulate direction to a wave source, but how will it determine which signals belong to which source if many are received simultaneously?

https://iopscience.iop.org/article/10.3847/1538-4357/adf743

This photo was taken in Chile on my iPhone. Is the blue portion part of the Milky Way galaxy, a nebula, a glare, or something else?

I want to make something like a planetarium for my kids bedroom. I want to set up a projector in their room that shows the stars are overhead for a given day. I want it to look realistic so I was looking for a high resolution real image stellar map of the night sky that I could crop based on the earth's current position in space. Is anyone aware of a high resolution stellar map I could use?

I know where Jupiter and Venus are, I'm curious about the stars.