Sarah Boessenecker, MSc. 🏛️🔭
@tetrameryx.bsky.social
Paleontologist, fossil librarian, amateur astronomer, cat mom
🌌📷⬇️
https://www.astrobin.com/users/tetrameryx/
🌌📷⬇️
https://www.astrobin.com/users/tetrameryx/
🔭 #astronomy #astro #astrophoto #astrophotography
C/2025 A6 (Lemmon)
This comet was discovered in January 2025 by the Mount Lemmon Survey. It's a bright comet, visible through binoculars! It'll be back around and be visible from earth again in the year 3175, so make sure to mark your calendars 😂
C/2025 A6 (Lemmon)
This comet was discovered in January 2025 by the Mount Lemmon Survey. It's a bright comet, visible through binoculars! It'll be back around and be visible from earth again in the year 3175, so make sure to mark your calendars 😂
October 24, 2025 at 7:35 PM
🔭 #astronomy #astro #astrophoto #astrophotography
C/2025 A6 (Lemmon)
This comet was discovered in January 2025 by the Mount Lemmon Survey. It's a bright comet, visible through binoculars! It'll be back around and be visible from earth again in the year 3175, so make sure to mark your calendars 😂
C/2025 A6 (Lemmon)
This comet was discovered in January 2025 by the Mount Lemmon Survey. It's a bright comet, visible through binoculars! It'll be back around and be visible from earth again in the year 3175, so make sure to mark your calendars 😂
October 19, 2025 at 4:17 PM
This cat KNOWS he's pretty, and loves to ham it up for pictures 🖤🤍@coastalpaleo.bsky.social
October 10, 2025 at 5:26 PM
This cat KNOWS he's pretty, and loves to ham it up for pictures 🖤🤍@coastalpaleo.bsky.social
September 25, 2025 at 5:06 PM
14 years married, and over 20 years together - he still makes me laugh every day, and is the best friend anyone could ever ask for. I'm the luckiest girl in the world.
Happy lucky 14th wedding anniversary!
Love you to the end, nerd. @coastalpaleo.bsky.social
Happy lucky 14th wedding anniversary!
Love you to the end, nerd. @coastalpaleo.bsky.social
September 17, 2025 at 5:17 PM
14 years married, and over 20 years together - he still makes me laugh every day, and is the best friend anyone could ever ask for. I'm the luckiest girl in the world.
Happy lucky 14th wedding anniversary!
Love you to the end, nerd. @coastalpaleo.bsky.social
Happy lucky 14th wedding anniversary!
Love you to the end, nerd. @coastalpaleo.bsky.social
NGC 281 - The Pacman Nebula
This nebula is a bright emission nebula in the constellation Cassiopea ~9200 light-years away from us. 🔭 #astronomy #astro #astrophoto #astrophotography
This nebula is a bright emission nebula in the constellation Cassiopea ~9200 light-years away from us. 🔭 #astronomy #astro #astrophoto #astrophotography
August 25, 2025 at 4:12 PM
NGC 281 - The Pacman Nebula
This nebula is a bright emission nebula in the constellation Cassiopea ~9200 light-years away from us. 🔭 #astronomy #astro #astrophoto #astrophotography
This nebula is a bright emission nebula in the constellation Cassiopea ~9200 light-years away from us. 🔭 #astronomy #astro #astrophoto #astrophotography
NGC 6992 - The Eastern Veil Nebula
The Eastern Veil Nebula is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago. When this star exploded, it would have been one of the brightest objects in the night sky, and even visible during the day.
The Eastern Veil Nebula is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago. When this star exploded, it would have been one of the brightest objects in the night sky, and even visible during the day.
August 10, 2025 at 5:31 PM
NGC 6992 - The Eastern Veil Nebula
The Eastern Veil Nebula is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago. When this star exploded, it would have been one of the brightest objects in the night sky, and even visible during the day.
The Eastern Veil Nebula is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago. When this star exploded, it would have been one of the brightest objects in the night sky, and even visible during the day.
NGC 6960 - The Western Veil Nebula
NGC 6960 is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago - this star was 20 times more massive than our sun! When this star exploded, it would have been one of the brightest objects in the night sky, & visible during the day.
NGC 6960 is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago - this star was 20 times more massive than our sun! When this star exploded, it would have been one of the brightest objects in the night sky, & visible during the day.
August 1, 2025 at 6:00 PM
NGC 6960 - The Western Veil Nebula
NGC 6960 is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago - this star was 20 times more massive than our sun! When this star exploded, it would have been one of the brightest objects in the night sky, & visible during the day.
NGC 6960 is a supernova remnant from a star that exploded between 10,000 and 20,000 years ago - this star was 20 times more massive than our sun! When this star exploded, it would have been one of the brightest objects in the night sky, & visible during the day.
NGC 7380 - The Wizard Nebula
The Wizard Nebula is a fairly young (~4-12 million years old) nebula in the constellation Cepheus. The cluster of stars that is surrounded by the nebulosity is over 20 light-years long!
The Wizard Nebula is a fairly young (~4-12 million years old) nebula in the constellation Cepheus. The cluster of stars that is surrounded by the nebulosity is over 20 light-years long!
July 14, 2025 at 8:02 PM
NGC 7380 - The Wizard Nebula
The Wizard Nebula is a fairly young (~4-12 million years old) nebula in the constellation Cepheus. The cluster of stars that is surrounded by the nebulosity is over 20 light-years long!
The Wizard Nebula is a fairly young (~4-12 million years old) nebula in the constellation Cepheus. The cluster of stars that is surrounded by the nebulosity is over 20 light-years long!
NGC 7023 - The Iris Nebula
The Iris Nebula is a bright reflection nebula some 1300 light-years away from earth, and is about 6 light-years across. This nebula does not produce its own light...
The Iris Nebula is a bright reflection nebula some 1300 light-years away from earth, and is about 6 light-years across. This nebula does not produce its own light...
July 9, 2025 at 9:34 PM
NGC 7023 - The Iris Nebula
The Iris Nebula is a bright reflection nebula some 1300 light-years away from earth, and is about 6 light-years across. This nebula does not produce its own light...
The Iris Nebula is a bright reflection nebula some 1300 light-years away from earth, and is about 6 light-years across. This nebula does not produce its own light...
M27 - The Dumbbell Nebula
The Dumbbell Nebula is a planetary nebula surrounding a white dwarf about 1360 light years away. This is a young nebula - likely around 9800 years old!
The Dumbbell Nebula is a planetary nebula surrounding a white dwarf about 1360 light years away. This is a young nebula - likely around 9800 years old!
June 30, 2025 at 5:13 PM
M27 - The Dumbbell Nebula
The Dumbbell Nebula is a planetary nebula surrounding a white dwarf about 1360 light years away. This is a young nebula - likely around 9800 years old!
The Dumbbell Nebula is a planetary nebula surrounding a white dwarf about 1360 light years away. This is a young nebula - likely around 9800 years old!
M16 - The Eagle Nebula
M16 is an active nebula some 5,700 light-years away. This nebula contains one of the Hubble Telescope’s most famous and iconic images, taken in 1995 - the “Pillars of Creation.”
M16 is an active nebula some 5,700 light-years away. This nebula contains one of the Hubble Telescope’s most famous and iconic images, taken in 1995 - the “Pillars of Creation.”
June 20, 2025 at 6:42 PM
M16 - The Eagle Nebula
M16 is an active nebula some 5,700 light-years away. This nebula contains one of the Hubble Telescope’s most famous and iconic images, taken in 1995 - the “Pillars of Creation.”
M16 is an active nebula some 5,700 light-years away. This nebula contains one of the Hubble Telescope’s most famous and iconic images, taken in 1995 - the “Pillars of Creation.”
M13 - The Great Hercules Cluster
M13 is a huge globular cluster in the constellation Hercules. It is about 145 light -years in diameter, and contains between 300,000 to over half a million stars!
M13 is a huge globular cluster in the constellation Hercules. It is about 145 light -years in diameter, and contains between 300,000 to over half a million stars!
June 16, 2025 at 7:05 PM
M13 - The Great Hercules Cluster
M13 is a huge globular cluster in the constellation Hercules. It is about 145 light -years in diameter, and contains between 300,000 to over half a million stars!
M13 is a huge globular cluster in the constellation Hercules. It is about 145 light -years in diameter, and contains between 300,000 to over half a million stars!
NGC 7635 - The Bubble Nebula
Last summer, @coastalpaleo.bsky.social and I went to a bortle 1 sky - those are the darkest skies possible, with no light pollution. The skies were so perfect, you could see SO MANY stars, it was really difficult to make out constellations!
Last summer, @coastalpaleo.bsky.social and I went to a bortle 1 sky - those are the darkest skies possible, with no light pollution. The skies were so perfect, you could see SO MANY stars, it was really difficult to make out constellations!
May 28, 2025 at 5:45 PM
NGC 7635 - The Bubble Nebula
Last summer, @coastalpaleo.bsky.social and I went to a bortle 1 sky - those are the darkest skies possible, with no light pollution. The skies were so perfect, you could see SO MANY stars, it was really difficult to make out constellations!
Last summer, @coastalpaleo.bsky.social and I went to a bortle 1 sky - those are the darkest skies possible, with no light pollution. The skies were so perfect, you could see SO MANY stars, it was really difficult to make out constellations!
M51 - The Whirlpool Galaxy
Been working on this target off and on for a few weeks, as clear nights allowed. By the end of my imaging session last night, I had a little over 7 hours of data and felt good about picking a new target to focus on for a bit.
Been working on this target off and on for a few weeks, as clear nights allowed. By the end of my imaging session last night, I had a little over 7 hours of data and felt good about picking a new target to focus on for a bit.
May 9, 2025 at 5:42 PM
M51 - The Whirlpool Galaxy
Been working on this target off and on for a few weeks, as clear nights allowed. By the end of my imaging session last night, I had a little over 7 hours of data and felt good about picking a new target to focus on for a bit.
Been working on this target off and on for a few weeks, as clear nights allowed. By the end of my imaging session last night, I had a little over 7 hours of data and felt good about picking a new target to focus on for a bit.
IC 405 - The Flaming Star Nebula
It’s been cloudy at night for a couple of weeks, & no end in sight! Late spring in San Diego isn’t great for astrophotography, so I’m processing old images I was never happy with before, & hadn’t shared them until I got better software & more practice w/ editing.
It’s been cloudy at night for a couple of weeks, & no end in sight! Late spring in San Diego isn’t great for astrophotography, so I’m processing old images I was never happy with before, & hadn’t shared them until I got better software & more practice w/ editing.
April 27, 2025 at 7:04 PM
IC 405 - The Flaming Star Nebula
It’s been cloudy at night for a couple of weeks, & no end in sight! Late spring in San Diego isn’t great for astrophotography, so I’m processing old images I was never happy with before, & hadn’t shared them until I got better software & more practice w/ editing.
It’s been cloudy at night for a couple of weeks, & no end in sight! Late spring in San Diego isn’t great for astrophotography, so I’m processing old images I was never happy with before, & hadn’t shared them until I got better software & more practice w/ editing.
NGC 6888 - The Crescent Nebula
Took this image about a year ago, under a bortle 1 sky. Only spent around 2 hours on it, as I wanted to image other targets that night, but wish I’d spent more time on it! I’ll have to image it again to get more data for it.
Took this image about a year ago, under a bortle 1 sky. Only spent around 2 hours on it, as I wanted to image other targets that night, but wish I’d spent more time on it! I’ll have to image it again to get more data for it.
April 14, 2025 at 7:55 PM
NGC 6888 - The Crescent Nebula
Took this image about a year ago, under a bortle 1 sky. Only spent around 2 hours on it, as I wanted to image other targets that night, but wish I’d spent more time on it! I’ll have to image it again to get more data for it.
Took this image about a year ago, under a bortle 1 sky. Only spent around 2 hours on it, as I wanted to image other targets that night, but wish I’d spent more time on it! I’ll have to image it again to get more data for it.
Luna - our moon
Took a 2-minute video of our half moon last night before moving on to my main target, & used some programs to pull out individual frames & stack them. It's better to image a half or crescent moon rather than a full moon, because you can get the shadows playing over the craters.
Took a 2-minute video of our half moon last night before moving on to my main target, & used some programs to pull out individual frames & stack them. It's better to image a half or crescent moon rather than a full moon, because you can get the shadows playing over the craters.
April 5, 2025 at 6:31 PM
Luna - our moon
Took a 2-minute video of our half moon last night before moving on to my main target, & used some programs to pull out individual frames & stack them. It's better to image a half or crescent moon rather than a full moon, because you can get the shadows playing over the craters.
Took a 2-minute video of our half moon last night before moving on to my main target, & used some programs to pull out individual frames & stack them. It's better to image a half or crescent moon rather than a full moon, because you can get the shadows playing over the craters.
it's the twins' 2nd birthday! I want them to stay young kittens forever, but time doesn't work that way. 🥰😄🥹😭 Look at how they've grown! They're getting spoiled with extra treats today, and they each got a new llama catnip toy! HAPPY BIRTHDAY, RIPLEY AND NEWT! ❤️❤️❤️ @coastalpaleo.bsky.social
March 25, 2025 at 4:49 PM
it's the twins' 2nd birthday! I want them to stay young kittens forever, but time doesn't work that way. 🥰😄🥹😭 Look at how they've grown! They're getting spoiled with extra treats today, and they each got a new llama catnip toy! HAPPY BIRTHDAY, RIPLEY AND NEWT! ❤️❤️❤️ @coastalpaleo.bsky.social
M81/Bode’s Galaxy and M82/Cigar Galaxy
Spent 5 or so hours imaging this galaxy pair, and I will likely add more time to it in the future,
M81 and M82 are two interacting galaxies some 12 million light years away, and the pair of them were discovered by Johann Elert Bode in 1774.
Spent 5 or so hours imaging this galaxy pair, and I will likely add more time to it in the future,
M81 and M82 are two interacting galaxies some 12 million light years away, and the pair of them were discovered by Johann Elert Bode in 1774.
March 23, 2025 at 6:30 PM
M81/Bode’s Galaxy and M82/Cigar Galaxy
Spent 5 or so hours imaging this galaxy pair, and I will likely add more time to it in the future,
M81 and M82 are two interacting galaxies some 12 million light years away, and the pair of them were discovered by Johann Elert Bode in 1774.
Spent 5 or so hours imaging this galaxy pair, and I will likely add more time to it in the future,
M81 and M82 are two interacting galaxies some 12 million light years away, and the pair of them were discovered by Johann Elert Bode in 1774.
I took the individual subs my Seestar took last night and stacked them on my computer and processed them. The Seestar did pretty well considering it doesn't have near the processing power my desktop has, but I knew I could do better! Here's the stack the Seestar did. I prefer mine!
March 21, 2025 at 7:38 PM
I took the individual subs my Seestar took last night and stacked them on my computer and processed them. The Seestar did pretty well considering it doesn't have near the processing power my desktop has, but I knew I could do better! Here's the stack the Seestar did. I prefer mine!
Loving my new Seestar s50! Been spending the last two nights on M81/M82, but since my favorite nighttime target, the Orion Nebula (M42) will only be in the nighttime sky for another month or so (it's a winter/fall target), so I figured I'd grab a quick 15 minutes on this BRIGHT target.
March 21, 2025 at 7:38 PM
Loving my new Seestar s50! Been spending the last two nights on M81/M82, but since my favorite nighttime target, the Orion Nebula (M42) will only be in the nighttime sky for another month or so (it's a winter/fall target), so I figured I'd grab a quick 15 minutes on this BRIGHT target.