NGC 4755/Jewel Box Open Cluster in Crux (Sigga)

Celestial hemisphere: Southern · Constellation: Crux (Cru) · Contains: Becrux · Jewel Box · Mimosa (βCru) · NGC 4755 · PK302+02.1 · The star Becrux · The star κCru · bet Cru · kap Cru · kappa Cru cluster

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NGC 4755/Jewel Box Open Cluster in Crux

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NGC 4755/Jewel Box Open Cluster in Crux

The Jewel Box (Kappa Crucis Cluster or NGC 4755) is an open cluster in the constellation Crux, originally discovered by Nicolas Louis de Lacaille in 1751–1752. This cluster was later named the Jewel Box by John Herschel when he described its telescopic appearance as "...a superb piece of fancy jewellery". It is easily visible to the naked eye as a hazy star some 1.0° southeast of the first-magnitude star Beta Crucis. This hazy star was given the Bayer star designation "Kappa Crucis", from which the cluster takes one of its common names. The modern designation Kappa Crucis has been assigned to one of the stars in the base of the A-shaped asterism of the cluster

This cluster is one of the youngest known, with an estimated age of 14 million years. It has a total integrated magnitude of 4.2, is located 1.95 kpc. or 6,440 light years from Earth, and contains just over 100 stars.

--Wikipedia

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NGC 4755

Turn out ok I think, need reduce over exposed star, sharpen some but still pleased. Maybe try processing some more and see if can improve. The Wikipedia article referenced above quite interesting to read.

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Description: Processed differently to try and improve colour, contrast and sharpness.

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Status	Advanced success
Started	...
Astrometry.net job	1574674
PixInsight job	0X2V2EUNDH42N4R8FDFTYOHQTOUQWWV9
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h51m50s.10
RA (top/left)	12h58m03s.60
RA (top/right)	12h45m13s.84
RA (bottom/right)	12h45m21s.99
RA (bottom/left)	12h58m41s.60

Dec (center)	-60°08′24″.8
Dec (top/left)	-59°29′23″.10
Dec (top/right)	-59°33′05″.2
Dec (bottom/right)	-60°46′19″.6
Dec (bottom/left)	-60°42′28″.2

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NGC 4755/Jewel Box Open Cluster in Crux

NGC 4755/Jewel Box Open Cluster in Crux

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NGC 4755/Jewel Box Open Cluster in Crux

NGC 4755/Jewel Box Open Cluster in Crux

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