i could’t find anything about that online. sry if it is a stupid question

Behold Sirius, the brightest star in the night sky, dazzling like a celestial diamond. Located in the Canis Major constellation, this stunning star has captivated humanity for millennia. Its brilliance cuts through the darkness, a beacon of cosmic beauty. A true wonder of the universe that inspires awe and curiosity.

Have you ever admired Sirius lighting up the heavens? Share your thoughts!

Would eyes from Earth be able to see a quasar at the galactic center?

I saw a video that stated this, and it seems they were trying to imply how perfectly created our system was.
Curious if this is true or not, and does it matter much or have any special effects upon our planet?

What do I have going on here? I appears to be horrible collimation but I just spent 20 mins attempting to fix it no avail. Any ideas or suggestions would be greatly appreciated. Note, it’s out of focus however when I could get in focus I was still getting this weird triangle. Jupiter was the target.

The odds are on any new comet being discovered by ATLAS. We are now in 2025 on the lookout for Comet C/2024 G3 (ATLAS), not to be confused with Comet C/2023 A3 Tsuchinshan-ATLAS which we saw in 2024. Perhaps ATLAS could start naming comets for the individual who found them, or something?

I just made an APP named TBPS (Three-Body Problem Simulator), which helps you to simulate and visualize the fascinating motion of three-body systems, uncovering the mysteries of celestial mechanics.

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Hi, I’m new to astronomy and am looking for advice about star gazing binoculars. I read in several places online that Bushnell legacy wp 10 x 50 is a good affordable pair. I was about the purchase them but saw there’s also a version that is 10-22 x 50. Can anyone tell me would this version be of greater benefit for stargazing? Or does anyone have any other recommendations. I recently got an 8” dobsonian telescope which is bigger and heavier than I anticipated so the binoculars would be more for convenience when I can’t bothered dragging out the telescope.

Is it more accurate to say that the rotation of the Earth is tilted relative to the plane of its orbit around the sun than to say that the Earth is tilted?

Maybe it's just a pet peeve for me, but it irks me when people leave out that 'tilt' is a relative relationship, and just say that the Earth is tilted. The Earth by itself doesn't give a fart about tilt, down is still down no matter what the angle of tilt. Even the tilt's effect on seasons is secondary to the relationship of the axis of rotation to the orbital plane.

So my real question is, am I making an ass of myself when I point that out, or is this something that other people feel strongly about?

(caveat: I'm not an astronomer)

I'm trying to get a list of all confirmed or (not FALSE POSITIVE) planets in the archive within 175 light years from Earth.

I don't see a column for parallax on this table: https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=cumulative

Do I need to join this table with another stellar table to figure out the distance of the stellar object? Or am I using the wrong table?

I’m a car design student looking to take on a unique design challenge. Right now I’m designing a vehicle exterior about the size of a Chevy bolt. I had this idea of a drivable telescope that a user, either a hobbyist or a professional can utilize for study by driving it to remote locations and having it be more powerful than a smaller scale at home telescope. Not every little detail needs to be worked out more so the concept needs to make sense. Is there an advantage to having a portable observatory? Is there any customer business or private that need such a thing? Does it fill in any gaps in the market? Is it solving a problem? Probably unlikely but it could lead to a really unique concept vehicle. Any feedback and advise or reference imagery would be a huge help as I’m a complete amateur in the world of astronomy. Thanks!

Is Nr.1 to 3 seriously possible to see with the naked eye? I‘ve seen with a lot of people argue in the comments claiming it’s possible/not possible. What’s your take on this?

My artistic scetch, that i hope you can understand.

so basically a satelite orbits a planet(P) as seen in (2); this orbit takes the same amount of time as the orbit ot P around it‘s sun. That way the Satelite is always between the sun and the planet as seen in (1). i thought it might be a sunsynchronous orbit at first, but that seems to be sth different. this seems to be too special of a case to be unnamed, but i can‘t find any information about it. Geostationary orbit is obviously not the case either. Is this only possible in the L1 langrange point between the sun and the P? In that case, would the Satelite even be considered to be orbiting P?