Monkey Head Nebula

Posted by on Aug 6, 2018

Monkey Head Nebula

The Monkey Head Nebula (also known as NGC 2174) is an H II emission nebula located in the constellation Orion and is associated with the open star cluster NGC 2175. It is thought to be located about 6,400 light-years away from Earth. The nebula may have formed through hierarchical collapse.

Raw images:
Ha: 18 x 10min  (Tot: 180min) Bin:1x1
OIII: 8 x 10min  (Tot: 80min) Bin:2x2
SII: 9 x 10min  (Tot: 90min) Bin:2x2
Seeing: 2-3"

Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Corrector 0.95x
Moravian G3 camera @-28C
No guiding

Filter:
Astrodon Ha 3nm, OIII 5nm, SII 5nm

Location/Date:
Valla Observatory (FROSON, Sweden)Feb 23, 2018

Image processing:
Images calibrated and processed in AstroPix and Photoshop 
Curves and levels in AstroPix
Color image with Photoshop
Color from starless Ha,SII and OIII images
Noise removal with the AstroPix Noise removal tool.

Image palette:
Gold and turquoise palette
Luminance - Ha as luminance layer

 Image information:
Scale: 1.14 arcsec/pix
FOW: 80x70 arcmin

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