M37 in Auriga - RGB (and carbon star V358 Aur)

[coatesg]

I grabbed the frames for this image on the night of the 5th Nov as a quick target after having got a lot more data on the Bubble. 

ST2000XM, with a WO FLT110 at f5.7 - R:G:B = 35:35:35 (5min subs) at 1x1. Processed in Pixinsight - it's tricky to hold the colour in the stars for these images - but really like the colour of the deep red carbon star V358 Aur (colour index ~1.57, V mag 12.something) in the lower portion of the image. 

Thanks for looking!

[James]

Thats a nice image - you're right about the star, took me a minute to find it but once I did it's really distinctively red

 

[coatesg]

It's a lovely colour - having just looked it up in Simbad, it's a C class carbon star: Case 358 (V358 Aur). See: http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Case++358&NbIdent=1#lab_ident

 

I've also tweaked the highlight colour slightly in PS - there was a slight green cast which I've tried to eliminate - bit happier with the general colour of the brighter stars now. 

[laudropb]

Very nice image.