M38 with NGC1907

M38 and ngc1907

M38 - Open Cluster in Auriga; small cluster at 8 o'clock is NGC1907
Mag 7.4, 21arcminutes across
RA 5:28.4 Dec 35 50'
This from SEDS.ORG:

Discovered by Giovanni Batista Hodierna before 1654. This cluster was silently discovered by Hodierna before 1654, and independently found by Le Gentil in 1749. Charles Messier included it in his catalog on September 25, 1764.

At its distance of 4,200 light years, its angular diameter of about 20' corresponds to about 25 light years, similar to that of its more distant neighbor M37. It is of intermediate age (about 220 million years according to the Sky Catalog 2000) and contains a yellow giant of mag 7.9 and spectral type G0 as its brightest member - this corresponds to an absolute magnitude of -1.5, or a luminosity of 900 suns. 


ST-10XME with Tak FSQ
Astrodon RGB filter set
7 x 5 minutes Red, 4 x 5 min Green and 6 x 5 minutes Blue (LOTS of problems with wind and guiding)
Flesherton, Ontario, Canada
Sept 17, 2006
Ambient temp +15C; camera temp -15C; Moon approaching new
Images acquired and darks & flats applied in CCDSoft v5.0
Images aligned and combines in Maxim
Colour channels assembled in PS CS2.
Levels, curves, saturation boost in PS CS2