Monkey Head Nebula (Sh2-252)

Also known as NGC 2174


Equipment

FLT110 @F5.2 on AP900 mount, guided with Megrez 80mm@F7 and DSIproII

Exposure details:

23x20 min sub exposures using a Baader 7nm Halpha filter
14x20min sub exposures using a Baader 8nm OIII filter
Callibration frames:12 dark frames, 25 bias frames and 25 flat frames
Seeing moderate

Processing:
This is a bicolour image with a synthetic green channel created from the Ha and OIII channels. The Ha image was used as the luminescence channel to generate a L[Ha]R[Ha]G[Gs]B[OIII] colour mapped image
Aligned, callibrated and stacked in Maxim DL, post processing in PixInsight and Adobe Photoshop CS3E