@ookeyikky.bsky.social
Reposted
August 22, 2025 at 10:10 AM
Reposted
Stunning! An 8-hour time-lapse to show the Earth is rotating while capturing the Milky Way.
August 14, 2025 at 4:57 PM
Stunning! An 8-hour time-lapse to show the Earth is rotating while capturing the Milky Way.
Reposted
Does the Universe expand faster than the speed of light?
The Universe is expanding, and ever more distant objects appear to recede faster and faster.
At some point, they exceed the speed of light.
And yet, relativity is just fine with that.
bigthink.com/starts-with-...
#space #astro #relativity
The Universe is expanding, and ever more distant objects appear to recede faster and faster.
At some point, they exceed the speed of light.
And yet, relativity is just fine with that.
bigthink.com/starts-with-...
#space #astro #relativity
Does the Universe expand faster than the speed of light?
Just 13.8 billion years after the hot Big Bang, we can see 46.1 billion light-years away in all directions. Doesn't that violate something?
bigthink.com
August 14, 2025 at 3:53 PM
Does the Universe expand faster than the speed of light?
The Universe is expanding, and ever more distant objects appear to recede faster and faster.
At some point, they exceed the speed of light.
And yet, relativity is just fine with that.
bigthink.com/starts-with-...
#space #astro #relativity
The Universe is expanding, and ever more distant objects appear to recede faster and faster.
At some point, they exceed the speed of light.
And yet, relativity is just fine with that.
bigthink.com/starts-with-...
#space #astro #relativity
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Even remote, high-altitude (almost 14,000 feet) telescopes like Gemini North on Maunakea can’t escape light from satellite constellations. While invisible to us, they leave bright streaks in sensitive long-exposure images. @aura-astronomy.bsky.social #astronomy GeminiObs/NOIRLab/NSF/AURA/J. Pollard
August 14, 2025 at 3:59 PM
Even remote, high-altitude (almost 14,000 feet) telescopes like Gemini North on Maunakea can’t escape light from satellite constellations. While invisible to us, they leave bright streaks in sensitive long-exposure images. @aura-astronomy.bsky.social #astronomy GeminiObs/NOIRLab/NSF/AURA/J. Pollard
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Your daily dose of cosmic perspective… 🔭🧪
August 14, 2025 at 4:55 PM
Your daily dose of cosmic perspective… 🔭🧪
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After 3 1/2 month break we're back on track with the SeestarS50 here at Glemsford, Suffolk, UK. My alt astrophotography base which gives me good views of the Northern sky and Bortle 4/5.
Hoping that there will be a clear sky at 10pm onwards🤞🔭
Hoping that there will be a clear sky at 10pm onwards🤞🔭
August 14, 2025 at 6:11 PM
After 3 1/2 month break we're back on track with the SeestarS50 here at Glemsford, Suffolk, UK. My alt astrophotography base which gives me good views of the Northern sky and Bortle 4/5.
Hoping that there will be a clear sky at 10pm onwards🤞🔭
Hoping that there will be a clear sky at 10pm onwards🤞🔭
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This 2-panel HOO mosaic took awhile! The Flying Bat Nebula (Sh2-129) and The Squid Nebula (OU4). The very faint OU4 was discovered by amateur Nicolas Outters in 2011. Triple hypergiant star system HR8119 (center) energizes the bipolar outflow of oxygen to glow blue. #astrophotography Details in ALT.
August 11, 2025 at 6:44 PM
This 2-panel HOO mosaic took awhile! The Flying Bat Nebula (Sh2-129) and The Squid Nebula (OU4). The very faint OU4 was discovered by amateur Nicolas Outters in 2011. Triple hypergiant star system HR8119 (center) energizes the bipolar outflow of oxygen to glow blue. #astrophotography Details in ALT.
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IC 434, the Horsehead nebula, is a dark nebula located about 1400 ly away in the constellation of Orion.
The unusual colour in this image is due to the hydrogen alpha spectral line being mapped to the green channel. #astronomy
The unusual colour in this image is due to the hydrogen alpha spectral line being mapped to the green channel. #astronomy
August 11, 2025 at 10:25 PM
IC 434, the Horsehead nebula, is a dark nebula located about 1400 ly away in the constellation of Orion.
The unusual colour in this image is due to the hydrogen alpha spectral line being mapped to the green channel. #astronomy
The unusual colour in this image is due to the hydrogen alpha spectral line being mapped to the green channel. #astronomy
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Here is a portion of Messier 24, the Sagittarius Star Cloud, which is mostly just a vast number of stars with some dark dust. There's an open star cluster, NGC 6603, visible just above the red star, right of center. 🔭
August 11, 2025 at 11:03 PM
Here is a portion of Messier 24, the Sagittarius Star Cloud, which is mostly just a vast number of stars with some dark dust. There's an open star cluster, NGC 6603, visible just above the red star, right of center. 🔭
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Interesting solar surface these past few days. No huge active regions but a great pattern of little ones. I was just so thrilled to see the sky. I had to take an image of something. #Astronomy #Astrophotography
August 11, 2025 at 11:42 PM
Interesting solar surface these past few days. No huge active regions but a great pattern of little ones. I was just so thrilled to see the sky. I had to take an image of something. #Astronomy #Astrophotography
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August 12, 2025 at 1:37 AM
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Sharpless 119, is a large patch of emission in the constellation Cygnus and lies some 2200 light years away. It’s only 2-3 degrees away from the North American and Pelican Nebulae, so is often overlooked.
#Astrophotography #Astrophoto #Photo
#Astrophotography #Astrophoto #Photo
August 12, 2025 at 11:49 AM
Sharpless 119, is a large patch of emission in the constellation Cygnus and lies some 2200 light years away. It’s only 2-3 degrees away from the North American and Pelican Nebulae, so is often overlooked.
#Astrophotography #Astrophoto #Photo
#Astrophotography #Astrophoto #Photo
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AstroBin's Image of the Day: "M15 Globular Cluster with IFN & Ha Cloud" by zhiyuan wan, 小卡子 and Bruce Shi
www.astrobin.com/0dq1ci/
#astrophotography
www.astrobin.com/0dq1ci/
#astrophotography
August 12, 2025 at 12:02 PM
AstroBin's Image of the Day: "M15 Globular Cluster with IFN & Ha Cloud" by zhiyuan wan, 小卡子 and Bruce Shi
www.astrobin.com/0dq1ci/
#astrophotography
www.astrobin.com/0dq1ci/
#astrophotography
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🔭. Here’s the Mare Imbrium / Crater Plato area at full resolution. Make sure you look at it at full size. Note the surface detail in the crater floor.
August 12, 2025 at 1:49 PM
🔭. Here’s the Mare Imbrium / Crater Plato area at full resolution. Make sure you look at it at full size. Note the surface detail in the crater floor.
Reposted
Welcome to the Astronomy feed! Contains a filtered view of astronomy content on Bluesky.
• You need to sign up for your posts to appear here.
• Then, add 🔭, #astro or #astronomy to your post.
• Check out our other feeds!
See the FAQ for more info:
• You need to sign up for your posts to appear here.
• Then, add 🔭, #astro or #astronomy to your post.
• Check out our other feeds!
See the FAQ for more info:
FAQ: The Astronomy Feed
Frequently asked questions about the Astronomy feed.
astrosky.eco
July 16, 2025 at 9:55 AM
Welcome to the Astronomy feed! Contains a filtered view of astronomy content on Bluesky.
• You need to sign up for your posts to appear here.
• Then, add 🔭, #astro or #astronomy to your post.
• Check out our other feeds!
See the FAQ for more info:
• You need to sign up for your posts to appear here.
• Then, add 🔭, #astro or #astronomy to your post.
• Check out our other feeds!
See the FAQ for more info:
Reposted
Corona Australis nebula (with and without stars). 11 hours from Atacama.
app.astrobin.com/i/i9upd6 #Astrophotography 🔭
app.astrobin.com/i/i9upd6 #Astrophotography 🔭
July 31, 2025 at 7:08 PM
Corona Australis nebula (with and without stars). 11 hours from Atacama.
app.astrobin.com/i/i9upd6 #Astrophotography 🔭
app.astrobin.com/i/i9upd6 #Astrophotography 🔭
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From Margaret Verrico @meverri.bsky.social : How is a galaxy like a bathtub? Today’s authors use quasars to light up the gas around galaxies. 🔭✨☄️
astrobites.org/2025/07/31/c...
astrobites.org/2025/07/31/c...
Splish, Splash: Taking a bath in the cool gas of the circumgalactic medium
How is a galaxy like a bathtub? Today's authors use quasars to light up the gas around galaxies.
astrobites.org
July 31, 2025 at 9:03 PM
From Margaret Verrico @meverri.bsky.social : How is a galaxy like a bathtub? Today’s authors use quasars to light up the gas around galaxies. 🔭✨☄️
astrobites.org/2025/07/31/c...
astrobites.org/2025/07/31/c...
Reposted
The Flying Bat Nebula (SH2-29) and the Giant Squid Nebula (Ou4, ) in Cepheus at ~ 2300 ly distant from Earth. The Bat is large H-alpha emission while the Squid is a faint Oiii-emitting object. The scope exposure period was ~10 hours over 4 nights for this photo.
#astronomy #astrophotography
#astronomy #astrophotography
July 31, 2025 at 10:19 PM
The Flying Bat Nebula (SH2-29) and the Giant Squid Nebula (Ou4, ) in Cepheus at ~ 2300 ly distant from Earth. The Bat is large H-alpha emission while the Squid is a faint Oiii-emitting object. The scope exposure period was ~10 hours over 4 nights for this photo.
#astronomy #astrophotography
#astronomy #astrophotography
Reposted
The Crescent Nebula and some of the surrounding nebulosity.
Capture details: Celestron AVX mount, Apertura 60mm FPL-53 doublet with flattener, Optolong L-enhance filter, ZWO ASI2600mc pro, and ZWO ASI120mm mini guide camera.
#astrophotography
Capture details: Celestron AVX mount, Apertura 60mm FPL-53 doublet with flattener, Optolong L-enhance filter, ZWO ASI2600mc pro, and ZWO ASI120mm mini guide camera.
#astrophotography
July 31, 2025 at 10:24 PM
The Crescent Nebula and some of the surrounding nebulosity.
Capture details: Celestron AVX mount, Apertura 60mm FPL-53 doublet with flattener, Optolong L-enhance filter, ZWO ASI2600mc pro, and ZWO ASI120mm mini guide camera.
#astrophotography
Capture details: Celestron AVX mount, Apertura 60mm FPL-53 doublet with flattener, Optolong L-enhance filter, ZWO ASI2600mc pro, and ZWO ASI120mm mini guide camera.
#astrophotography
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Obsessed with today's #AstronomyPictureOfTheDay 🤩
Fireball over Cape San Blas
Credit: Jason Rice (@jriceastro on IG) 🔭🐡🎨
Fireball over Cape San Blas
Credit: Jason Rice (@jriceastro on IG) 🔭🐡🎨
July 23, 2025 at 2:55 PM
Obsessed with today's #AstronomyPictureOfTheDay 🤩
Fireball over Cape San Blas
Credit: Jason Rice (@jriceastro on IG) 🔭🐡🎨
Fireball over Cape San Blas
Credit: Jason Rice (@jriceastro on IG) 🔭🐡🎨
Reposted
Here's the 3D, narrated movie version: youtu.be/_QvlRH-q0nw?... 🔭🧪
July 23, 2025 at 5:12 PM
Here's the 3D, narrated movie version: youtu.be/_QvlRH-q0nw?... 🔭🧪
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This week's featured image is of NGC 2040!
Captured by GMOS-S, it showcases stunning orange and yellow wisps— remnants of a star's dramatic end. Dive into the 🧵 for fascinating papers on nebulae!
📸 Check the thread for credit!
#Astronomy
Captured by GMOS-S, it showcases stunning orange and yellow wisps— remnants of a star's dramatic end. Dive into the 🧵 for fascinating papers on nebulae!
📸 Check the thread for credit!
#Astronomy
July 23, 2025 at 7:51 PM
This week's featured image is of NGC 2040!
Captured by GMOS-S, it showcases stunning orange and yellow wisps— remnants of a star's dramatic end. Dive into the 🧵 for fascinating papers on nebulae!
📸 Check the thread for credit!
#Astronomy
Captured by GMOS-S, it showcases stunning orange and yellow wisps— remnants of a star's dramatic end. Dive into the 🧵 for fascinating papers on nebulae!
📸 Check the thread for credit!
#Astronomy
Reposted
NEW: Astronomers Discover Massive Molecular Cloud Hidden in Milky Way
The newly discovered "Midpoint cloud" offers a rare glimpse into star formation and the dynamic flow of galactic material toward the Milky Way's center.
#RadioAstronomy #Astronomy #MilkyWay
The newly discovered "Midpoint cloud" offers a rare glimpse into star formation and the dynamic flow of galactic material toward the Milky Way's center.
#RadioAstronomy #Astronomy #MilkyWay
Astronomers Discover Massive Molecular Cloud Hidden in Milky Way - National Radio Astronomy Observatory
An international team of astronomers has discovered a massive cloud of gas and dust located in a little-known region...
public.nrao.edu
July 23, 2025 at 7:58 PM
NEW: Astronomers Discover Massive Molecular Cloud Hidden in Milky Way
The newly discovered "Midpoint cloud" offers a rare glimpse into star formation and the dynamic flow of galactic material toward the Milky Way's center.
#RadioAstronomy #Astronomy #MilkyWay
The newly discovered "Midpoint cloud" offers a rare glimpse into star formation and the dynamic flow of galactic material toward the Milky Way's center.
#RadioAstronomy #Astronomy #MilkyWay
Reposted
A wide-field look into the Sadr region of Cygnus. Lots of Milky Way goodness in this frame. Swipe to view the image without stars. More details in this Blog post: Exploring the Sadr Region: Backyard Astrophotography of Cygnus’ Celestial
Wonders
#Space #Astrophotography #nebulae #Cygnus
Wonders
#Space #Astrophotography #nebulae #Cygnus
July 23, 2025 at 9:10 PM
A wide-field look into the Sadr region of Cygnus. Lots of Milky Way goodness in this frame. Swipe to view the image without stars. More details in this Blog post: Exploring the Sadr Region: Backyard Astrophotography of Cygnus’ Celestial
Wonders
#Space #Astrophotography #nebulae #Cygnus
Wonders
#Space #Astrophotography #nebulae #Cygnus
Reposted
Jersey Skies: The Milky Way spills across the evening sky
www.jerseysbest.com/community/je...
#stargazing 🔭
www.jerseysbest.com/community/je...
#stargazing 🔭
Jersey Skies: The Milky Way spills across the evening sky
This is a great time of year to look for the Milky Way. All the stars we see at night of course are part of our Milky Way — the huge collection of gas, dust and stars that we live inside.
www.jerseysbest.com
July 23, 2025 at 11:05 PM
Jersey Skies: The Milky Way spills across the evening sky
www.jerseysbest.com/community/je...
#stargazing 🔭
www.jerseysbest.com/community/je...
#stargazing 🔭