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Astronomy Picture of the Day- Government shutdown so no APOD Today. I will dig up some of my favorites - Bright Spiral Galaxy M81
NASA ^ | 17 Oct, 2015 | Image Credit & Copyright: Ken Crawford (Rancho Del Sol Observatory)

Posted on 11/11/2025 11:49:24 AM PST by MtnClimber

Explanation: One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful M81. The grand spiral galaxy can be found toward the northern constellation of the Great Bear (Ursa Major). This superbly detailed image reveals M81's bright yellow nucleus, blue spiral arms, tell tale pinkish star forming regions, and sweeping cosmic dust lanes with a scale comparable to the Milky Way. Hinting at a disorderly past, a remarkable dust lane actually runs straight through the disk, to the left of the galactic center, contrary to M81's other prominent spiral features. The errant dust lane may be the lingering result of a close encounter between between M81 and its smaller companion galaxy, M82. Scrutiny of variable stars in M81 has yielded one of the best determined distances for an external galaxy -- 11.8 million light-years. M81's dwarf companion galaxy Holmberg IX can be seen just above the large spiral.


TOPICS: Astronomy; Science
KEYWORDS: apod; fakenews; nasa; quitslacking; shutdownsover
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To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 11/11/2025 11:49:24 AM PST by MtnClimber
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To: MtnClimber

2 posted on 11/11/2025 11:49:44 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

🪐 🌟 🌌 🍔

3 posted on 11/11/2025 11:50:24 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

4 posted on 11/11/2025 12:09:27 PM PST by Magnum44 (...against all enemies, foreign and domestic... )
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To: MtnClimber

Wow - colorful


5 posted on 11/11/2025 12:28:39 PM PST by Deaf and Discerning
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To: MtnClimber
thank you.


6 posted on 11/11/2025 12:30:42 PM PST by Diogenesis (Si vis pacem, para bellum)
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To: MtnClimber

And to think that we’re the only ones in the universe?


7 posted on 11/11/2025 2:02:38 PM PST by SkyDancer ( ~ Am Yisrael Chai ~)
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To: Diogenesis

Only a few more billions and billions and billions of pictures to go ... thanks for those.


8 posted on 11/11/2025 2:03:47 PM PST by SkyDancer ( ~ Am Yisrael Chai ~)
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To: MtnClimber; All

Sun unleashes biggest flare of the year, northern lights could dance across Southeast sky Tuesday
A severe solar storm could produce northern lights across as far south as Alabama and Northern California. Forecasters with NOAA’s Space Weather Prediction Center say the X5.1 solar flare on Tuesday marks the 6th largest of solar cycle and possibly among the top 39 flares in the modern space age. A rare Severe (level 4 out of 5) Geomagnetic Storm Watch is in place through Wednesday.

By Emilee Speck, Senior Content Editor

https://www.accuweather.com/en/space-news/sun-unleashes-biggest-flare-of-the-year-northern-lights-could-dance-across-southeast-sky-tuesday/1834117


9 posted on 11/11/2025 2:04:15 PM PST by BenLurkin (The above is not a statement of fact. It is opinion or satire. Or both.)
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To: Diogenesis

Nice.


10 posted on 11/11/2025 5:22:05 PM PST by telescope115 (Ad Astra, Ad Deum…)
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