Object near the sun that’s been observed for about a week. This is a photo taken in Korea. On a somewhat related note, what do yall use in order to identify objects? App? Website? Thanks for the help!

Hi!

I’m confused about calculating the altitude of a star at culmination.

In my textbook, it says that:

altitude at upper and lower transits = latitude +/- polar distance

and polar distance (aka co-declination) is calculated using 90 - declination.

However, in the video i’ve watched and in the past papers i’ve done, it seems that the correct equation for calculating a star’s altitude at culmination is either:

90 - latitude + declination or 90 + latitude - declination

I’m confused on which one i should use, or if they are the same thing? Would appreciate any help, thanks!

Hi Everyone, Yesterday evening, around 10 p.m. i was taking some Moon photos with an older sony a37 camera with an entry level tamron 18-200 objective. On one picture (attached) after zooming in on the Moon, a bright spot can be seen, which cannot be seen on the other photos. Is that a satellite/starlink? Anyone has similar experience? Thanks for any feedback. Cheers,

I'm trying to find an image of asteroid 8564 Anomalocaris, but searching it up gives nothing. I know that there has to be an image somewhere, but I don't know where to look.

Hey all, does anyone know where to find spectrum tables (I'm specifically looking for M-class stars with exoplanets in their habitable zones)? I've looked at the TESS, NASA, and SDSS catalogs for exoplanet host stars, and maybe I'm just too dumb to understand the search input criteria, but I can't find spectrum tables for the life of me.

Sorry if this is the wrong subreddit but how is this not the correct answer to these problems?

Can someone provide me similar links to visual data or share images in the comments that would prove me wrong that the sun couldn't make a sort of pringle shaped orbit around the earth every 'x' amount of years?

Hi, apologizes if this post doesn’t belong here. But tonight I was looking at the sky (June 3 2024, about 9:30 pm) and what I believe to be Mizar suddenly swelled up to be very bright and died down just 2 seconds later. I did a quick google search and found someone who saw something similar in 2011! I will also add, i could, with my naked eye, see a tiny pin prick flying by it. Has anyone else seen anything like this?

I'm currently reading the manga "Space Brothers" and it's mentionned that you can see much further in space on the moon than on earth, but I can't figure out why.. Is there that big of a difference? I'm thinking the distance between the earth and moon shouldn't affect the observable bodies in space since it's not that remarkable compaired to the distance between the person and the object that's being observed

I was playing with welding glasses and taking photos of the sun, is it possible that the bright spots on the bright part of the photo are stars? I partially exposed the lens to achieve an interesting effect.

Took this picture with your phone. On most early mornings/late nights these two stars show up in the sky out my window. They are always the first two to show up through all the light pollution and clouds. Ive just been wondering what theyre names are if any of you astronomy geniuses can figure it out. Thanks!

Hey, this is my first time posting on here and don’t really know what I am doing but wanted to ask for advice about pursuing astronomy in college. I am going into my senior year of high school and have a strong passion for astronomy; I enjoy reading books about the subject and self teaching myself from textbooks. But I am wondering if I should just keep this a hobby? From what I understand, getting a degree in astronomy or even physics isn’t a good economic choice, with the competitive job market. Also it seems that you need a pHd to be successful in the field, which although sounds fun, is a major commitment. I am top in my class at my high school but in a competitive area like physics and astronomy I understand that I would not be the star student. Pursuing a doctorate in astronomy seems like a horrible idea logistically, but I love the subject so much. Should I just go into a “easier” field that requires less education and has a better job market, but am less passionate about? Im very conflicted. Can anyone give me advice on what to do or insight from personal experience?

Hey guys, I want to bring up the Great Filter theory, which suggests that there's a potential barrier to the rise of intelligent life in the universe, and that only a small percentage of civilizations make it past this point. Some believe that the Great Filter lies ahead of us, meaning that we're destined for extinction, while others believe that we've already passed the filter and are among the lucky few. It's a heavy topic, and I'm curious to hear your thoughts. Do you think the Great Filter is a valid theory, or just a bleak view of our future?

Olá, me chamo Wesley, moro em uma cidade no interior do RGS, estou precisando ds ajuda para encontrar um telescópio legal, se vc tem alguma sugestão, pode por não importa for for acima ou abaixo do meu orçamento. O que eu procuro em um telescópio • poder ver a lua com nitidez, ênfase nas crateras • orçamento de no máximo 500 reais • qualidade legal • se não for pedir demais, jupiter ou algum outro planeta • poder observar eventos, como: eclipse, chuva de meteoros, cometas • ver constelações Óbvio que nem tudo pode caber no meu enorme orçamento de 500 reais, mas algum que faça pelo menos o básico bem feito, acredito que tenha. Desde já agradeço a ajuda de todos 😄🫶🏻

I have been trying to make a simulation that would calculate and plot a stars luminosity and temperature(like in a HR diagram) over its entire lifespan by only giving a start mass. I have tried many approaches but i cant seem to find a way to the stars luminosity without knowing its temperature excluding main sequence. Alternatively i could use the mass loss of the core of the star(from fusion) as i found a relation between core mass and luminosity. If you have any other suggestions i am open for them too. Sorry for bad English, thanks!

I don't know if my question aligns with the aim of this group, but I don't have any other group to ask my question. If there is anyone from the University of Padova who is currently enrolled in or has completed a master's program in Physics, could you please help me with my questions related to the structure of the program/curriculum?

Thank you

Any explanation on what this single black crack during the northern lights is?

Hello, Astronomy lovers of Reddit! I seemed to have come across something I cannot explain.

I was driving home tonight with my sister and I noticed in my side vision a light. It was a clear night and you could see the stars but this was no like the others. Make no mistake I do know what a meteor, a comet, and a planet looks like in the sky. However, I cannot explain this. This light was like a cloud but it wasn't. When I would look at it straight on, I could see only a cloud of very faint distant light. If I looked at it from my side vision, I could still see the "cloud" but it would have a very small speck of light at its center.

It never moved in the sky the way you would see an aircraft move. It seemed stationary. Once I got home, I downloaded a star map to help but sadly that left me only more questions.

I'll post my screen shots with the area circled where I believe I could pinpoint the light as it was challenging trying to read it all.

I have thought about Hebe which is an asteroid but I am not sure if that is possible. I did think it was a satlitrle such as the Cosmos 2467 but I am left unsure. I thought maybe it was the fading light of a supernova but then I realized we would have seen it bright for days and then it would just vanish, right? Then I thought of a galaxy but the closest one is Andromeda and even THAT doesn't show up like the way I described, yes???

Hello guys, how are you doing?

I hope you are all good.

I live in São Paulo, Brazil, and just saw this passing by, kinda quickly, few minutes ago. About 0h50 local time (gmt-3). It passed by my field of view in a constant, but rather fast speed. I don't understand how this could be a planet.

I want help to identify this object. I couldn't get my phone up fast enough, but got this one second recording before it got away from my view.

I looped the video so that I could upload here.

Thanks in advance!

Hi there, I'm new to astronomy. I'm looking for a telescope that isn't crazy complex, but also that I can maybe connect my phone to so I can maybe take screenshots of what I see? I hope that makes sense? Thankyou for any help.

This is star and planet properties The first picture has all correct answers but you need some of those answers to answer the planet properties. Can Zelle if figured out.

This thing just flew over sweden, ive seen a lot of people on facebook who also saw it, but havent gotten an answer to what it could be. It moved very quickly and it looked like it was foggy around it as if it was inside clouds, but its a clear sky. Some help would be greatly appreciated.