Starship Asterisk*

Here's another NASA blog using this picture: https://blogs.nasa.gov/kennedy/category/artemis-i/ A view of Earth as seen from the Artemis I Orion capsule about 9 hours into flight on Nov. 16, 2022. (Image credit: NASA TV) And this website also mentions that the picture has been taken over 9 hours aft...

Hello, I am the author of the photograph. The shape of the Milky Way is quite normal. It is curved because of the (very large) panorama I had to make to get all these objects on the same image. In particular, an east-west panorama. This panorama causes deformations, which cannot be prevented. It's ...

It's hard not to ask oneself the question, "Why is it dark at night?", when one sees all those little galaxies as crystal-sharp grains of salt richly sprinkled all over Euclid's field. Ann And they say visible material is less than 4% of universe.. I have a hard time even understanding sp...

For anyone interested, you can read how the photographer herself has described her picture in her Facebook page. https://www.facebook.com/photo/?fbid=934319118387122&set=a.845850313900670 "We sat and continued photographing to capture the entire sequence. As in my mind, I really wanted to c...

There's been a mistake I guess. Today's APOD incorrectly shows the date as September 21, and the link to Asterisk Discussion page also directs you to September 21.

Thanks a lot! The bot works perfectly. However, The invite link for the server has expired or so it seems.
Any chance for a new link?

I kind of like the unpredictability of discovering new comets, but that also means the Earth could become an impact site for one some day. I only hope we get enough warning beforehand to at least try to do something about it, though it seems doubtful we would be successful. Isn't discovering potent...

I kind of like the unpredictability of discovering new comets, but that also means the Earth could become an impact site for one some day. I only hope we get enough warning beforehand to at least try to do something about it, though it seems doubtful we would be successful. Isn't discovering potent...

Who will have a better chance for seeing this comet, northern hemisphere observers or southern? I think Northern, but maybe Southern observers could still view it at some points in its journey, based on what's stated at https://starwalk.space/en/news/new-comet-c2023-p1, but I've yet to find a defin...

Who will have a better chance for seeing this comet, northern hemisphere observers or southern?

So the other night at sunset my sister and I saw this bright ray of light that did not line up with the sun like a crepuscular ray, the angle was all off. I can't seem to post the picture in this post. I guess I'll share it as a link to my Facebook post. https://m.facebook.com/story.php?story_fbid=...

Hi everyone, my name is Simon Dolby, I live in the Peak District National Park, Derbyshire in the UK. I've been interested in Astronomy since I was old enough to look up at the stars and ask questions, so about 5, as I remember Apollo 11 moon landing when I was 4. I minored in Astronomy at Universi...

Wow! It's like we're look up from the depths of hell through a hole torn in a fiery roof, to behold a bright blue sky speckled with assorted clouds, and a bunch of "daytime stars". It almost makes me optimistic for the future! Well, we are seeing the future of our own solar system here......

The text seems a little outdated. https://apod.nasa.gov/apod/calendar/S_230813.jpg The Sombrero Galaxy in Infrared recently recorded by the orbiting Spitzer Space Telescope Spitzer Space Telescope has retired, right? So it couldn't have possibly record data on this galaxy recently. The fact that to...

The text seems a little outdated.

APOD Robot wrote: ↑Sun Aug 13, 2023 4:06 am The Sombrero Galaxy in Infrared

recently recorded by the orbiting Spitzer Space Telescope

Spitzer Space Telescope has retired, right? So it couldn't have possibly record data on this galaxy recently.

I very much appreciate the learned discussions between Johnny and Chris, but I have nothing to add there, so let me add the pretty pictures! :D https://apod.nasa.gov/apod/image/2308/Perseids18_Horalek_960.jpg APOD 9 August 2023 annotated.png Like I said, pretty! :D Does anyone know what that bright...

I think I've found the name of this star, between Ganymede and Jupiter ( I still think that's Ganymede to the right of Jupiter, not Europa, and there's been a mistake) photo_2023-08-08_15-36-46.jpg It should be HD 13873. http://server6.sky-map.org/starview?object_type=1&object_id=142008&obj...

I think I've found the name of this star, between Ganymede and Jupiter ( I still think that's Ganymede to the right of Jupiter, not Europa, and there's been a mistake) photo_2023-08-08_15-36-46.jpg It should be HD 13873. http://server6.sky-map.org/starview?object_type=1&object_id=142008&obje...

Is the annotation for Jupiter's moons correct? I entered the date (June 14, 2023) and the location on Stellarium. photo_2023-08-08_12-36-37.jpg photo_2023-08-08_12-36-40.jpg What I see is that the position of Europa and Ganymede are not correct in today's APOD annotation. Btw, there is a star not an...

For those wondering, this is where this fragment is situated in the larger nebula: From https://www.eso.org/public/images/eso1308a/ https://cdn.eso.org/images/screen/eso1308a.jpg Very detailed new observations with ESO’s Very Large Telescope (VLT) of the remains of a thousand-year-old supernova hav...

a retrograde GSO, would return to the same point in the sky more often (or less often???) than once per Earth rotation. Hmm, in the simplest case of zero eccentricity and zero inclination, what would the path of such an object be as seen from the ground and how often would it return to the same pos...

Also, from the geosynchronous orbit in the text, we have: Geosynchronous Orbits A geosynchronous orbit (GEO) is a prograde, low inclination orbit about Earth having a period of 23 hours 56 minutes 4 seconds. A spacecraft in geosynchronous orbit appears to remain above Earth at a constant longitude,...

https://apod.nasa.gov/apod/image/2307/PhobosMars_MarsExpress_960.jpg I find it hard not to think of the asteroid that killed the dinosaurs on Earth when I look at today's APOD! And of course, Phobos is going to crash on Mars. Assuming there are any people left on the Earth to watch the spectacle wh...

I read somewhere that using those crosses on the picture, you can determine angular distance or sth? but how?

Yes, I see that too. My private message to you just now is still stuck in my outbox. And so is a message I sent 15 months ago! Strange. When did this last work properly I wonder... But I received your message! Does this mean even those in outbox have actually reached their receivers? Apparently not...