Deep Sky Object in Autumn
Around Mel.20 (Open Cluster around alpha Persei)


Date & Time: Jan 28 2006, 23:14 JST(+0900), 30min. Exp.
Optical: SMC PENTAX f=300mm F4.0, Aperture: F4.0
with IDAS LPS-P1 light pollution suppression & Cokin Diffuser-1 filters
Auto-guided with TAKAHASHI JP Equatorial
Camera: PENTAX 67
Film: Ektachrome E200 (+1EV pushed)
Location: Ooizumi, Hokuto city, Yamanashi pref.




Mel.20 (Cr 39) / Open Cluster, type III 3 m
R.A.03h 22m (2000.0)
Dec.+49° (2000.0)
Apparent Size185'
Real SizeN/A
# of Stars50
Magnitude1.2
DistanceN/A
The Perseus is an autumn constellation bathed in the Milky Way. Therefore uncountable fine stars are scattered in the area of the constellation. You can see alpha Persei, Mirfak, with the second magnitude in the center of this picture. And you might notice that many bright stars are getting together around alpha Persei with binoculars, actually those stars form an open cluster, has been given a number of Mel.20, the cluster is spread about three degrees.
The splendid cluster can be enjoyed with small binoculars, and you can appreciate several stellar-lines stretching outward from the central star of alpha Persei. Some ones are straight, and some others are warped, it should be extremely impressive views.




Around NGC7790

Kemble's cascade


Copyright(c) 2006 by Naoyuki Kurita, All rights reserved.
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