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Derek Santiago | all galleries >> Galleries >> Planetary Nebulae and SN Remnants > Abell 73 bicolor
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Abell 73 bicolor

Abell 73 (PK 95+7.1) is a faint planetary nebula in the constellation Cepheus. It's coordinates are RA 20:56:27, DEC 57:26:03. Other than the DSS red and blue plate images and that from the IAC Morphological Catalog of Northern Galactic Planetary Nebulae, I am unable to find another image of it. The apparent magnitude is 16.5 with a central star magnitude of 21 (not seen in these narrowband images). Thanks Sakib Rasool for suggesting this target.

Imaging Camera: QSI540wsg
Imaging Scope: Celestron 9.25"Edge HD
Guide Camera: SX Lodestar
Mount: Avalon M-Uno Fast Reverse
Filters: Astrodon 5nm Ha,3nm OIII
Exposure: 7.5 hours Ha (30 and 60 minute subs binned x2), 5 hours OIII (30 min subs binned x2),
Processing: CCD Stack and PS CS2
Date: July 17-24 2015
Location: My front driveway. Morristown, NJ

other sizes: small medium large original auto
Sakib 26-Jul-2015 17:16
I think luminance might show the central star.
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