Celestial hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  61 Ori  ·  The star μ Ori
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Nebula Abell 12 (ARO 22) "The Hidden Planetary", Stephen Heliczer FRAS
Nebula Abell 12 (ARO 22) "The Hidden Planetary"
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Nebula Abell 12 (ARO 22) "The Hidden Planetary"

Getting plate-solving status, please wait...
Nebula Abell 12 (ARO 22) "The Hidden Planetary", Stephen Heliczer FRAS
Nebula Abell 12 (ARO 22) "The Hidden Planetary"
Powered byPixInsight

Nebula Abell 12 (ARO 22) "The Hidden Planetary"

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Tricky one for me...!  Abell 12 (ARO 22) is a planetary nebula located in the constellation of Orion. Abell 12 is known as "the hidden planetary" because of the foreground star Mu Orionis making it difficult to observe and Abell 12 being at an apparent magnitude of about 14. The nebula is 6,900 light years away from Earth, north of Betelgeuse. The northern outer red hydrogen shell has been ruptured allowing the interior oxygen to spill out. Captured with Edge HD 8 with FR, ZWO ASI2600MC and Antlia RGB filter.  120 x 45 seconds at 101 gain

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Nebula Abell 12 (ARO 22) "The Hidden Planetary", Stephen Heliczer FRAS