Sarah Boessenecker, MSc. 🏛️🔭
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tetrameryx.bsky.social
Sarah Boessenecker, MSc. 🏛️🔭
@tetrameryx.bsky.social
Paleontologist, fossil librarian, amateur astronomer, cat mom
🌌📷⬇️
https://www.astrobin.com/users/tetrameryx/
Nerd stuff:
12 frames, stacked
Seestar s50
Stacked in Siril, and processed in Pixinsight, with minor edits in Gimp
October 24, 2025 at 7:35 PM
Reposted by Sarah Boessenecker, MSc. 🏛️🔭
And finally, my favorite sightings: I got to snorkel with a bunch of sea lion pups in their nursery at La Jolla Cove! I didn't approach them: I basically just floated there and they would do 'flybys' every couple of minutes. This one was playing with a piece of kelp! 🤿🐬🦑 #snorkeling
October 19, 2025 at 4:08 PM
Reposted by Sarah Boessenecker, MSc. 🏛️🔭
A small school of Pacific barracuda (Sphyraena argentea) - a bit smaller than the great barracuda you find in the Caribbean, and with a distinctive yellow tail; my first time seeing this species!
October 18, 2025 at 4:42 PM
Nerd stuff:
94 frames, stacked
Seestar s50
Stacked in Siril, and processed in Pixinsight, with minor edits in Gimp
October 19, 2025 at 4:17 PM
This nebula has over 100 stars in it. It’s bright enough I only got around 15 minutes on it, as I was waiting for another target to rise and thought I’d grab some data on this one. I will likely go back to it at some point!
October 19, 2025 at 4:17 PM
The Omega Nebula is a bright nebula between 5000-6000 light years from earth, and is 15 light years across! It is in the constellation Sagittarius, and has the mass of 800 suns. It is a stellar nursery - new stars are born here.
October 19, 2025 at 4:17 PM