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M 34 (NGC 1039, Spiral Cluster) - Open Cluster type 'd', in Perseus

LRGB combination (Click for a larger view 1800 x 1800 px)

Details

M 34 (NGC 1039, Spiral Cluster) - Open Cluster type 'd', in Perseus

Probably first found by Giovanni Batista Hodierna before 1654, and independently rediscovered by Charles Messier in on August 25, 1764.

M34 (NGC 1039) is an intermediate aged open cluster and lies about 1800 light years away in the constellation Perseus. M34 spans about 15 light-years. The age of M34 was recently been updated to 180 million years, according to the new calculations of G. Meynet's Geneva Team. Over 100 stars belong to this cluster, with the brightest concentrated towards the center. It is believed that M34 is part of a larger local group of star clusters that includes Pleiades.

North is up. The Horizontal FOV is about 38' (slight crop from original FOV). The image almost centered at:

Right Ascension 02:42:05 (h:m:s)
Declination +42:45:00 (deg:m:s)
Distance 1.8 (kly)
Visual Brightness B=5.37, V=5.2 (mag)
Apparent Dimension 35 (arc min)

Optic(s): RC 12" with Astro-Physics corrector @ f/5
Mount: ASA DDM85 Premium
Camera: ATIK 4000 - monochrome CCD – 2048 x 2048 px ; 16x16 mm; 7.4 µm x 7.4 µm
Filters: Astronomik LRGB set, SupaSlim TrueTechnology Computerized Filter Wheel
Dates/Times: 2012-11-18
Location: Remote controlled IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exposure Details:

L = 15 min, R = 15 min, , G = 15 min, , B = 15 min, subs. 3 min, Bin 1, Total Exposure Time - 60 min

More details: Dark and flat frames reduction
Guiding: All subexposures are unguided
Processing:

PixInsight / PS

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All Contents copyright Velimir Popov unless otherwise noted.