M13 - Great Globular Cluster in Hercules (Anders Gengård)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Great Cluster in Hercules · M 13 · NGC 6205

M13 - Great Globular Cluster in Hercules, Anders Gengård

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M13 - Great Globular Cluster in Hercules

Link: https://flic.kr/s/aHsmpbZkJ5

Powered byPixInsight

M13 - Great Globular Cluster in Hercules

Link: https://flic.kr/s/aHsmpbZkJ5

I stjärnbilden Herkules ligger denna klotformiga stjärnhop. Avståndet från jorden är 22.200 ljusår, diametern ungefär 100 ljusår och den består av runt 300.000 stjärnor eller ”solar” som hålls tätt samman av gravitation.
Den upptäcktes av Edmond Halley 1714 och listades senare som nummer 13 i Charles Messiers katalog och kallas därför M13 - The Great Globular Cluster in Hercules, eller Herkuleshopen på svenska.

I stjärnhopens mitt, inom ett område med diametern tre ljusår, finns ca.100 stjärnor. Som jämförelse är det fyra ljusår till vår sols närmaste grannstjärna, Alpha Centauri.

Den 16 november 1974, skickades ett binärt meddelande på 210 byte från Arecibo-observatoriet i Puerto Rico mot M13. Det innehöll bland annat information om DNA och en figur föreställande en människa.
Syftet med sändningen skall inte ha varit att söka kontakt med utomjordingar, utan att demonstrera vad man klarade av och det var ju tur, för när meddelandet är framme om drygt 20.000 år har M13 flyttat sig och är inte längre kvar på platsen...

Spiralgalaxen något vänster om mitten i överkant av bilden kallas IC4617 och ligger lite längre bort, ungefär 489 miljoner ljusår.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Basic success
Started	...
Astrometry.net job	3264284
PixInsight job	n/a
PixInsight queue size	n/a
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M13 - Great Globular Cluster in Hercules

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