Type: Emission 

Constellation: Cygnus

Distance from Earth: 5,000 Light-years

About: Discovered by William Herschel in 1792. It was formed by the fast stellar wind from Wolf-Raynet star WR-136 and has an apparent magnitude of 7.4. It is best to use an OIII filter to capture the outer shell and Hydrogen Alpha to gather the details of the two shock waves, one moving inward, the other outward. 

Imaging Project Information:

Imaging Telescope: Celestron EdgeHD 8 Schmidt-Cassegrain

Imaging Camera: ZWO ASI533MM Pro

Mount:  iOptron CEM60

Guiding: Celestron Off-Axis Guider and ASI147MM Mini

Filters and Frames: Antlia V-Pro RGB (to capture the stars) 60 x 30s each filter. Antlia Edge 4.5nm Hydrogen Alpha and Oxygen-3 (for the nebulosity) 52 x 300s per filter

Accessories:  Primalucelab Essato 2″ LP Focuser and Giotto 255mm Flat Field Generator. Pegasus Astro Powerbox Advance (Power Management),  USB3 Switch, and UranusMeteo Weather Station

Software: Acquisition – N.I.N.A.  Preprocessing: Pixinsight  Postprocessing: Pixinsight

Acquisition Period:

6/26, 6/30, 7/6, 7/18, 7/25, 7/27