NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends (Sigga)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 44 Cas · IC 166 · M 103 · NGC 581 · NGC 654 · NGC 659 · NGC 663 · PK129-02.1 · The star 44Cas · VdB6

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NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends

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NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends

NGC 663, mag. +7.1, is a young open cluster that's one of a number of bright clusters that can be seen with binoculars in the constellation of Cassiopeia. NGC 663 is located 3 degrees northeast of Ruchbah (δ Cas - mag. +2.7) and 3 degrees southwest of epsilon Cas (ε Cas - mag. +3.4). Positioned just north of the cluster is NGC 654 (mag. +6.5) with NGC 659 (mag. +7.9) to the south. Also located nearby to Ruchbah is M103 (mag. +7.4). All of these open clusters are visible in binoculars.

NGC 663 is located 7,000 light-years distant. It's estimated to be 20 million years old and is number 10 in the Caldwell catalogue. The cluster was discovered by William Herschel on November 3, 1787. It's believed to form part of the stellar association Cassiopeia OB8, which also contains M103, NGC 654, NGC 659 and some supergiant stars scattered between them. NGC 663 is interesting to professional astronomers as it contains a high number of Be stars and some blue stragglers.

--Free Star Charts

I took this under large moon, 3x 300 seconds RGB. Idea come from my friend Ron Adams who took this grouping I was not aware of.

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Unknown

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	2290232
PixInsight job	DGV78EPOFF941B2JSV3NS2W56J7Z9MTA
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h45m59s.11
RA (top/left)	02h02m23s.48
RA (top/right)	01h41m04s.62
RA (bottom/right)	01h30m57s.25
RA (bottom/left)	01h50m14s.10

Dec (center)	+61°14′43″.3
Dec (top/left)	+62°33′57″.2
Dec (top/right)	+63°30′52″.9
Dec (bottom/right)	+59°48′39″.9
Dec (bottom/left)	+58°57′58″.3

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NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends

NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends

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NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends

NGC 663/Caldwell 10 Open Cluster in Cassiopeia + Some Friends

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