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Allen but one of the good ones
Allen but one of the good ones boosted
Betelgeuse Status
@betelbot@ratingen.social  ·  activity timestamp 25 minutes ago

#Betelgeuse in historical context: currently at mag 0.40, brighter than usual. A 135-year look at the red supergiant. #Beteigeuze #Astronomy

Historical brightness chart of Betelgeuse from 1890 to 03 Aug 2026. The y-axis shows visual magnitude; brighter is up, fainter is down. Amber dots show 30-day averaged observations across 135 years. A red line highlights the last 90 days at 3-day resolution, with a red dot marking the current value. A dashed line marks the historical median. The Great Dimming of 2019/2020 is shaded. Current magnitude is 0.40, brighter than 93% of all recorded monthly averages. Data source: AAVSO visual (by-eye) observations.
Historical brightness chart of Betelgeuse from 1890 to 03 Aug 2026. The y-axis shows visual magnitude; brighter is up, fainter is down. Amber dots show 30-day averaged observations across 135 years. A red line highlights the last 90 days at 3-day resolution, with a red dot marking the current value. A dashed line marks the historical median. The Great Dimming of 2019/2020 is shaded. Current magnitude is 0.40, brighter than 93% of all recorded monthly averages. Data source: AAVSO visual (by-eye) observations.
Historical brightness chart of Betelgeuse from 1890 to 03 Aug 2026. The y-axis shows visual magnitude; brighter is up, fainter is down. Amber dots show 30-day averaged observations across 135 years. A red line highlights the last 90 days at 3-day resolution, with a red dot marking the current value. A dashed line marks the historical median. The Great Dimming of 2019/2020 is shaded. Current magnitude is 0.40, brighter than 93% of all recorded monthly averages. Data source: AAVSO visual (by-eye) observations.
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Betelgeuse Status
@betelbot@ratingen.social  ·  activity timestamp 25 minutes ago

#Betelgeuse in historical context: currently at mag 0.40, brighter than usual. A 135-year look at the red supergiant. #Beteigeuze #Astronomy

Historical brightness chart of Betelgeuse from 1890 to 03 Aug 2026. The y-axis shows visual magnitude; brighter is up, fainter is down. Amber dots show 30-day averaged observations across 135 years. A red line highlights the last 90 days at 3-day resolution, with a red dot marking the current value. A dashed line marks the historical median. The Great Dimming of 2019/2020 is shaded. Current magnitude is 0.40, brighter than 93% of all recorded monthly averages. Data source: AAVSO visual (by-eye) observations.
Historical brightness chart of Betelgeuse from 1890 to 03 Aug 2026. The y-axis shows visual magnitude; brighter is up, fainter is down. Amber dots show 30-day averaged observations across 135 years. A red line highlights the last 90 days at 3-day resolution, with a red dot marking the current value. A dashed line marks the historical median. The Great Dimming of 2019/2020 is shaded. Current magnitude is 0.40, brighter than 93% of all recorded monthly averages. Data source: AAVSO visual (by-eye) observations.
Historical brightness chart of Betelgeuse from 1890 to 03 Aug 2026. The y-axis shows visual magnitude; brighter is up, fainter is down. Amber dots show 30-day averaged observations across 135 years. A red line highlights the last 90 days at 3-day resolution, with a red dot marking the current value. A dashed line marks the historical median. The Great Dimming of 2019/2020 is shaded. Current magnitude is 0.40, brighter than 93% of all recorded monthly averages. Data source: AAVSO visual (by-eye) observations.
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Bob Jamieson
Bob Jamieson boosted
Anna Anthro
@AnnaAnthro@mastodon.social  ·  activity timestamp 10 hours ago

How to destroy an earth-threatening #asteroid

#China’s space engineers think double-rocket plan would work

#astronomy

https://www.scmp.com/news/china/science/article/3362361/chinese-rocket-scientists-find-most-effective-way-nuke-doomsday-asteroid

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Allen but one of the good ones
Allen but one of the good ones boosted
Dr. John Barentine FRAS
@JohnBarentine@scicomm.xyz  ·  activity timestamp 9 hours ago

"Our measurements reveal an average brightness seven times brighter than mitigation targets cited in FCC filings and peak values over 200 times brighter than the International Astronomical Union’s recommended threshold (V magnitude 7). Now, AST SpaceMobile is expected to deploy over 200 Block 2 satellites that are each three times larger (199 m2) which would be three times brighter than Block 1 (all else being equal), and regulations have not changed."

https://iopscience.iop.org/article/10.1088/1538-3873/ae8333/

#Space #Satellites #Astronomy #SpacePolicy

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Dr. John Barentine FRAS
@JohnBarentine@scicomm.xyz  ·  activity timestamp 9 hours ago

"Our measurements reveal an average brightness seven times brighter than mitigation targets cited in FCC filings and peak values over 200 times brighter than the International Astronomical Union’s recommended threshold (V magnitude 7). Now, AST SpaceMobile is expected to deploy over 200 Block 2 satellites that are each three times larger (199 m2) which would be three times brighter than Block 1 (all else being equal), and regulations have not changed."

https://iopscience.iop.org/article/10.1088/1538-3873/ae8333/

#Space #Satellites #Astronomy #SpacePolicy

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Anna Anthro
@AnnaAnthro@mastodon.social  ·  activity timestamp 10 hours ago

How to destroy an earth-threatening #asteroid

#China’s space engineers think double-rocket plan would work

#astronomy

https://www.scmp.com/news/china/science/article/3362361/chinese-rocket-scientists-find-most-effective-way-nuke-doomsday-asteroid

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Allen but one of the good ones
Allen but one of the good ones boosted
ESO
@esoastronomy@mastodon.social  ·  activity timestamp 6 days ago

The conclusion of a century-long quest 😲

Our VLT obtained firm evidence that Betelgeuse, a red supergiant star in the Orion constellation and one of the most famous stars in the night sky, is not alone!

1/4

📷 ESO/M. Montargès et al. Background: N. Rissinger (skysurvey.org)

#astrodon #astronomy #astrophysics #space #science

A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.
A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.
A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.
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ESO
@esoastronomy@mastodon.social  ·  activity timestamp 6 days ago

The conclusion of a century-long quest 😲

Our VLT obtained firm evidence that Betelgeuse, a red supergiant star in the Orion constellation and one of the most famous stars in the night sky, is not alone!

1/4

📷 ESO/M. Montargès et al. Background: N. Rissinger (skysurvey.org)

#astrodon #astronomy #astrophysics #space #science

A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.
A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.
A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.
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Good and Positive News
Good and Positive News boosted
Good News Community
@Good_News_Community@mastodon.cosmicnation.co  ·  activity timestamp 6 days ago

Astronomers have detected erythrulose, a sugar linked to life's chemistry, in an interstellar gas cloud. The finding adds evidence that useful organic ingredients may be widespread across the galaxy.
Read more: https://www.cbsnews.com/news/astronomers-discover-sugar-space-found-in-raspberries/

@goodnews

#GoodNews #SpaceScience #Astrobiology #Astronomy #OriginOfLife #Science

CBS News

Astronomers discover sugar in space that's also found in raspberries: "Just floating out in the galaxy"

The sugar, called erythrulose, lurks in what's called the interstellar medium: thin clouds of gas and dust littered between stars.
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Good News Community
@Good_News_Community@mastodon.cosmicnation.co  ·  activity timestamp 6 days ago

Astronomers have detected erythrulose, a sugar linked to life's chemistry, in an interstellar gas cloud. The finding adds evidence that useful organic ingredients may be widespread across the galaxy.
Read more: https://www.cbsnews.com/news/astronomers-discover-sugar-space-found-in-raspberries/

@goodnews

#GoodNews #SpaceScience #Astrobiology #Astronomy #OriginOfLife #Science

CBS News

Astronomers discover sugar in space that's also found in raspberries: "Just floating out in the galaxy"

The sugar, called erythrulose, lurks in what's called the interstellar medium: thin clouds of gas and dust littered between stars.
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