NGC281 Hubble Pacman

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NGC 281 is an emission nebula in Cassiopeia. It is also called "PacMan Nebula". It includes open cluster IC 1590, the double star HD 5005, and several Bok globules.
Bok globules are isolated and relatively small dark nebulae, containing dense cosmic dust and gas from which star formation may take place. Bok globules are found within HII regions, and typically have a mass of about 2 to 50 solar masses contained within a region about a light year. [Wiki]

Image processed using the Tone Mapping workflow using SII, Ha and OIII images.

Here the more classic RGB rendition using only OIII and Ha filters.

Ha image provided by Davide Coverta

Optic SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector
Camera Atik 383L+
Filters Baader Ha, SII, OIII 36mm
Mount NEQ6 with EQASCOM
SW 70/500 with AlCCD5
Frame center
RA 00:52:59 DEC 56:37:11 J2000
October 2016, September 2014
S.Barthelemy, AO, Italy
Backyard, Milan, Italy
Exposures SII 12x900s bin 1x1 @-10°C
Ha 20x900s bin 1x1 @-20°C
OIII 30x600s bin 1x1 @-10°C

Integration time - 13h