Planetary Nebula in Gemini

Uploaded 11/31/2001

Discovered by Pease in 1917, this 13th magnitude bipolar object is 55 seconds from tip to tip, and displays the common multiple shell structures visible in many planetaries from earlier ejection events. Most color images available reveal a greenish nebula with a ruddy interior. Less than perfect seeing an moonlight were factors in this image.

Instrument:  12.5" f/5 Home made Newtonian
Platform:  Astrophysics 1200 QMD
CCD Camera:  SBIG ST7E w/Enhanced Cooling
Exposure:  LRGB = 60:20:20:36 (RGB Binned 2x2)
Filters:  RGB Tricolor
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing FMHW = 2.7 arcsec, Transparency 8/10
Outside Temperature:  15 C
CCD Temperature:  -25 C
Processing:  Maxim DL, Photoshop, AIP4WIN, PW Pro.




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