Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7076  ·  PK101+08.1
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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB

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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB

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Description

Another ticked off my Abell list. This small pn is strong in both Ha and OIII, with the RGB also producing a fainter rendition of Abell 75. So a good target for NB and broadband with a larger scope.

Taken over a couple of nights in late September, with clear nights becoming rarer than hen's teeth again.

Comments

Revisions

  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
    Original
  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
    B
  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
    C
  • Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
    D
  • Final
    Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers
    E

B

Description: A crop of A.

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C

Description: Took my own advice offered to another imager and removed the purple tinge. Simply invert the image and run SCNR on it, then re-invert bye bye purple. I read about this method on the PI forum but have no idea who to give a credit too.

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D

Description: D: 2 years ago I forgot to show the rgb image. Finally here it is.

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E

Description: E: Lots of background Ha in this area, It's very noisy so I usually hide it as 4 hours NB isn't enough to get a clean image with my skies. Here's the HOO with RGB stars warts an' all.

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Abell 75 small Planetary Nebula in Cepheus Har_OIIIG_OIIIB, Pat Rodgers

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UK Astro-Imaging