Double Cluster in Perseus (Christophe Perroud)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 10 Per · 5 Per · 7 chi Per · 8 Per · 9 i Per · B201 · Double cluster · LBN 653 · LDN 1374 · Misam · NGC 869 · NGC 884 · NGC 957 · The star 7Per · The star 8Per · The star 9Per

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Double Cluster in Perseus

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Double Cluster in Perseus

NGC 869 (h Per) & 884 (x Per) are best known as the Double Cluster in constellation Perseus.

Wikipedia says : "Each cluster is half a degree in diameter. NGC 869 is the more compressed one, and have over 200 white and bluish-white members. NGC884 has 175 mostly white and bluish-white stars. They are respectively 6'800 and 9'600 l-y away from home. Both of them are located in the Perseus OB1 association. They are quite young, with NGC 869 being 5.6 million year old and NGC 884 at 3.2 million years old. Their hottest main sequence stars are of spectral type B0. They are approaching Earth at a speed of 21-22 km/s."

A quick attempt at those beautiful clusters just before clouds ruin the session. I had also do deal with battery failure in the remote controller, giving me only 30 sec built-in exposure time. Setting the ISO at 400 was a not bad idea I guess. By the way, I spent the first part of the night rambling in the Milky Way with binoculars and my other 4'' refractor. Good to rediscover stars and DSO sometimes ;-)

Takahashi Refractors
Imagers of Switzerland

Takahashi FS60 + DSLR

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Status	Advanced success
Started	...
Astrometry.net job	2292441
PixInsight job	DGS4N4JZRPR9UP9ZEL0G89UUL4TFQFBA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h21m27s.38
RA (top/left)	02h01m19s.98
RA (top/right)	02h05m51s.40
RA (bottom/right)	02h40m12s.17
RA (bottom/left)	02h38m46s.71

Dec (center)	+57°03′30″.2
Dec (top/left)	+58°16′44″.6
Dec (top/right)	+55°03′49″.2
Dec (bottom/right)	+55°38′56″.8
Dec (bottom/left)	+58°55′10″.2

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Double Cluster in Perseus

Double Cluster in Perseus

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