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Medusa Nebula (Abell 21) - a planetary nebula in Gemini

Contains: NGC 2395

Technical card

Resolution: 1920x1447

Dates: March 18, 2017

Frames:
Astrodon Tru-Balance LRGB E-Series Gen 2 Blue: 13x900" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Green: 15x900" bin 1x1
Astrodon Ha 5nm: 15x1800" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 13x900" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Red: 14x900" bin 1x1

Integration: 21.2 hours

Avg. Moon age: 19.77 days

Avg. Moon phase: 74.24%

Astrometry.net job: 1526781

RA center: 112.279 degrees

DEC center: 13.264 degrees

Pixel scale: 3.552 arcsec/pixel

Orientation: 31.526 degrees

Field radius: 1.186 degrees

Locations: Deep Sky West, Rowe, NM, United States

Description

A large planetary nebula in Gemini. Originally thought to be a supernova remnant but now classiied as an old planetary nebula.

Data captured over several nights at DSW. The date given is the final capture date.

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Author

Steve Milne
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Medusa Nebula (Abell 21) - a planetary nebula in Gemini, Steve Milne