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Astronomy Picture of the Day - M13: The Great Globular Cluster in Hercules
APOD.NASA.gov ^ | 20 May, 2021 | Image Credit & Copyright: Martin Dufour

Posted on 05/20/2021 5:54:23 PM PDT by MtnClimber

Explanation: In 1716, English astronomer Edmond Halley noted, "This is but a little Patch, but it shews itself to the naked Eye, when the Sky is serene and the Moon absent." Of course, M13 is now less modestly recognized as the Great Globular Cluster in Hercules, one of the brightest globular star clusters in the northern sky. Sharp telescopic views like this one reveal the spectacular cluster's hundreds of thousands of stars. At a distance of 25,000 light-years, the cluster stars crowd into a region 150 light-years in diameter. Approaching the cluster core upwards of 100 stars could be contained in a cube just 3 light-years on a side. For comparison, the closest star to the Sun is over 4 light-years away. The remarkable range of brightness recorded in this image follows stars into the dense cluster core. Distant background galaxies in the medium-wide field of view include NGC 6207 at the lower right.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
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 05/20/2021 5:54:23 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 05/20/2021 5:54:39 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; Art in Idaho; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌


3 posted on 05/20/2021 5:55:14 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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I’m pretty sure that there is surgery for that.


4 posted on 05/20/2021 6:03:00 PM PDT by Rio
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To: MtnClimber

Enlarge the image. See the X at the core or center of the star cluster?

Strange you posted this as I was just reprocessing the data from M-13 after I imaged it about six nights ago.


5 posted on 05/20/2021 6:39:04 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
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To: MtnClimber

Absolutely amazing!

(More inspiring as a globular cluster than a Formica pattern! (Pretty sure Formica appropriated it!))


6 posted on 05/20/2021 6:43:44 PM PDT by Pete from Shawnee Mission
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To: MtnClimber

bttt


7 posted on 05/20/2021 6:53:26 PM PDT by BenLurkin (The above is not a statement of fact. It is either opinion, or satire. Or both.)
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To: MtnClimber

I mean, it’s an OK Globular Cluster.

I don’t know if it’s so great.


8 posted on 05/20/2021 7:07:42 PM PDT by blueunicorn6 ("A crack shot and a good dancer”)
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To: MtnClimber

I had a globular cluster one time. They’re very painful.


9 posted on 05/20/2021 7:13:57 PM PDT by Bullish (CNN is what happens when 8th graders run a cable network.)
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To: MtnClimber

A gigantic cousin of the COVID 19 virus?


10 posted on 05/20/2021 10:04:06 PM PDT by MadMax, the Grinning Reaper
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To: MtnClimber

Looks like a spiral galaxy at about 4 o’clock.


11 posted on 05/21/2021 2:30:46 AM PDT by FroggyTheGremlim (I'll be good, I will, I will!)
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To: Rio

Yes, I had a globular cluster removed in 2008...................


12 posted on 05/21/2021 4:58:14 AM PDT by Red Badger (Jesus said there is no marriage in Heaven. That's why they call it Heaven.....................)
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To: MtnClimber

yeah! They got NGC 6207 in the shot too!

Too bad they missed the other two globs in Hercules.


13 posted on 05/21/2021 10:03:44 AM PDT by Conan the Librarian (Conan the Sailing Librarian)
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To: MtnClimber

Space, the final frontier, is pretty expansive.


14 posted on 05/21/2021 10:05:34 AM PDT by 1Old Pro
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To: 1Old Pro

It is humbling to realize how slow the speed of light is compared to the vastness of the universe!


15 posted on 05/21/2021 12:13:51 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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