Large Planetary Nebula in Lynx

Constellation: Lynx
Ra: 6hr 19m 34s
Dec: +55d 36m 42s
Distance: 3480 light years
Image Size: 30' x 30'
North: Upper left



PuWe1 (Purgathofer-Weinberger 1, PNG 158.9 + 17.8) is a large, circular planetary nebula in the constellation of Lynx that has an apparent diameter of 20′. It is incredibly faint and required many hours of exposure with the high contrast of 3 nm H-a and OIII narrowband filters. Star colors were obtained by blending in RGB data. Although it is a faint target, there is considerable structure as shown in the image.

Exposure: 11.5 hrs Total; 4.5 hrs OIII, 5.5 hrs H-a, 1.5 hrs RGB
Telescope: RCOS 16" RC f/8.9 tube
Mount: Software Bisque Paramount ME
Oag: Astrodon MonsterMOAG
Acquisition: CCD AutoPilot4
Calibration: CCDStack2
Observatory Site: Sierra-Remote Observatories, Shaver Lake, CA
Camera: Apogee U16M
Filters: Astrodon 3nm OIII, H-a, Gen 2 RGB
Guider: SBIG ST-402
Camera Operation: MaximDL4.62
Processing: Photoshop CS5 Extended
Image Date: 01/20/2011 - 01/22/2011

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