M52 - 10/20/2007
Object: M52 Camera: Meade DSI-Pro II
Date: 10/20/2007 Telescope: Meade 80mm APO refractor w/6.3 reducer
Total Exposure: RGB - 30':45':45' Subexposures: 1 minute each
Location: West Boylston, MA
Processing:
I wouldn't have needed to perform the HSL adjustment if I'd used only 22' of red, but I've learned since then.
Description:
M52
Discovered 1774 by Charles Messier.

Messier 38 (M38, NGC 1912) is one of the three Messier open clusters in the southern part of constellation Auriga.

The brightest main sequence star of this cluster is of mag 11.0 and spectral type B7. Two yellow giants are brighter: The brightest is of spectral type F9 and mag 7.77, the other of type G8 and mag 8.22. The Sky Catalogue 2000.0 gives an age of only 35 million years, which coincides with the value given by Woldemar Götz, who mentions that this cluster contains one peculiar Of star, i.e. an extremely hot star with peculiar spectral lines of ionized helium and nitrogen.