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Abell 21, the Medusa Nebula in the constellation Gemini.

This is the faint but large planetary nebula known as the Medusa Nebula, but officially Abell 21 or PK 205+14.1 in Gemini. It was discovered in 1955 and was once classified as a supernova remnant. The very sparse open cluster NGC 2395 is at upper right from the nebula.. The nebula is thought to be 4 light-years across and 1500 light-years away.
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Title:
Abell 21, the Medusa Nebula in the constellation Gemini.
Caption:
This is the faint but large planetary nebula known as the Medusa Nebula, but officially Abell 21 or PK 205+14.1 in Gemini. It was discovered in 1955 and was once classified as a supernova remnant. The very sparse open cluster NGC 2395 is at upper right from the nebula.. The nebula is thought to be 4 light-years across and 1500 light-years away.
Credit:
Album / Alan Dyer/Stocktrek Images
Releases:
Model: No - Property: No
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Image size:
6300 x 4261 px | 76.8 MB
Print size:
53.3 x 36.1 cm | 21.0 x 14.2 in (300 dpi)
Keywords:
ABELL 21 • ASTROMETRY • ASTRONOMY • ASTRONOMY: OBSERVATORY • ASTROPHOTOGRAPHY • ASTROPHYSICS • CELESTIAL • COLOR IMAGE • CONSTELLATION • COSMIC • DEEP SPACE • EMISSION NEBULA • FULL FRAME • GEMINGA • GEMINI • HEAVENLY • HORIZONTAL • MEDUSA NEBULA • NEBULA • NEUTRON STARS • NGC 2395 • NIGHT • NO PEOPLE • OBSERVATORY • ORRERY • OUTDOOR • OUTDOORS • OUTERSPACE • OUTSIDE • PHOTOGRAPHY • PLANETARIUM • PLANETARY NEBULA • PLANETARY • SHARPLESS 2-274 • SPACE (COSMOS) • SPACE • SPATIAL • STARFIELD • STARLIGHT • STARS • STELLAR • UNIVERSE • WITHOUT PEOPLE