Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)
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Abell 39 in OIII, erdmanpe
Abell 39 in OIII
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Abell 39 in OIII

Getting plate-solving status, please wait...
Abell 39 in OIII, erdmanpe
Abell 39 in OIII
Powered byPixInsight

Abell 39 in OIII

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Description

The ghostly nebula using a two filter stack of an Astronomics OIII filter and an SBIG luminance filter.  After much frustration I had discovered that the OIII filter had a strong red leak that was preventing me from building any contrast in the nebula with my bright skies.  The luminance filter cut off the red leak.  Still, this thing is pretty dim.  Binned 2x2 on camera. All processing in CCDSoft, so not much.

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Sky plot

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Abell 39 in OIII, erdmanpe