YM16 Planetary Nebula

YM16 Planetary Nebula

Constellation: Serpens Cauda
Ra: 18hr 54m 57s
Dec: +6d 2m 31s
Image Size: 36' x 36'
North: upper right



Yerkes-McDonald (YM) 16 is a planetary nebula located at RA 18hr 54m 57s and DEC +6d 2m 31s in the constellation of Serpens Cauda. It is also known as RCW 181 or PN G038.7+01.9. It is one of the faintest objects I have imaged. There are few color images of this object. This represents 6 hour of 3 nm H-a and nearly 11 hours of 3 nm OIII. OIII, typically a strong emission in planetary nebula, is almost absent in the data. The object has an apparent diameter of 5′. There appears to be a very faint halo extending from the elongated ends. A larger aperture would be required to bring it out.

Exposure: 17.5 hrs Total; 6 hrs H-a, 10.5 hrs OIII, 1 hr RGB
Telescope: RCOS 16
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: 08/15/2010

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