NGC 4833, the Dark Doodad and Dust in Musca

Imaged from a dark site- at Wiruna the dark sky property owned by the Astronomical Society of NSW

 

2 hours of integration- 5 minute individual subs

 

Equipment

Samyang 135 mm/ ZWOASI 183MC/HEQ5 mount/Optolong UV filter/ASIAIR

 

software

ASIAIR app for capture/ Astro Pixel Processor/Photoshop CS6 with Russell Croman's GradXterminator and NoiseXterminator plug ins/ Starnet ++

 

Processing notes

 

Stars removed with Starnet++. Star layer created by subtracting the starless version from the stacked image from APP. (Layer mask used to reveal globular from stacked image in the star layer)

 

starless image processed as usual with curves and levels after noise removal and Star layer added back in photoshop

despite the dark location object was relatively low so gradient removal was found necessary

 

Definitely needs more data- another two hours wouldn't go astray

Done