Abell 7

Posted by dcrowson
on Sunday, January 24, 2021
Abell 7 (PN A66 7, PN G215.5-30.8, PK 215-30.1 and others) is a faint planetary nebula located approximately 1614 light-years away (Gaia DR2) in Lepus. I found several mentions of the planetary being approximately 20,000 years old with the central star being 10 billion but I couldn’t find any cited papers. From a southern hemisphere site, this would be a good target for narrowband because it seems to be bright in OIII as well as Ha.

Luminance – 12x900s – 180 minutes – binned 1x1
RGB – 6x600s – 60 minutes each – binned 2x2

360 minutes total exposure – 6 hours

Imaged on January 11th and 12th, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

LRGB - https://www.flickr.com/photos/dcrowson/50870743423/sizes/l/
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