Ten million stars: Omega Centauri (Caldwell 80 or NGC5139) (James Tickner)

Celestial hemisphere: Southern · Constellation: Centaurus (Cen) · Contains: HD116067 · HD116147 · HD116166 · HD116167 · HD116197 · HD116225 · HD116226 · HD116240 · HD116295 · HD116337 · HD116352 · HD116353 · HD116354 · HD116370 · HD116414 · HD116451 · HD116486 · HD116487 · HD116524 · HD116555 · HD116573 · HD116586 · HD116600 · HD116601 · HD116649 · HD116650 · HD116663 · HD116716 · HD116730 · HD116745 · And 67 more.

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Ten million stars: Omega Centauri (Caldwell 80 or NGC5139)

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Ten million stars: Omega Centauri (Caldwell 80 or NGC5139)

Containing 10 million stars, Omega Centauri is the largest globular cluster associated with the Milky Way. Located at a distance of about 17,000 light years, it's also visually the largest and brightest globular in the sky, easily visible to the naked eye from a reasonably dark site.

Browsing through the Caldwell catalogue, I realised that all of its 18 globular clusters are visible from my location in southern Australia, although the most northerly (C25) is marginal. Fifteen are located in the deep southern sky and so are ideally suited for imaging from the southern hemisphere. Taking advantage of a sequence of clear nights in the run-up to full moon I was able to target most of the Caldwell globular group and will post images over the coming days.

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Description: Reprocessed with improved treatment of star colours

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Caldwell Globular Clusters

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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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Status	Advanced success
Started	...
Astrometry.net job	7108779
PixInsight job	5RVUEPZ81YWXXNHFO50N8T4HCWSKC8YF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h26m51s.97
RA (top/left)	13h32m11s.80
RA (top/right)	13h31m00s.30
RA (bottom/right)	13h21m44s.95
RA (bottom/left)	13h22m31s.28

Dec (center)	-47°30′02″.5
Dec (top/left)	-48°37′58″.1
Dec (top/right)	-46°14′39″.1
Dec (bottom/right)	-46°21′10″.4
Dec (bottom/left)	-48°44′46″.5

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Ten million stars: Omega Centauri (Caldwell 80 or NGC5139)

Ten million stars: Omega Centauri (Caldwell 80 or NGC5139)

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Ten million stars: Omega Centauri (Caldwell 80 or NGC5139)

Ten million stars: Omega Centauri (Caldwell 80 or NGC5139)

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