Celestial hemisphere:  Northern  ·  Constellation: Gemini (Gem)
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Medusa Nebula, Cy Borg
Medusa Nebula
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Medusa Nebula

Getting plate-solving status, please wait...
Medusa Nebula, Cy Borg
Medusa Nebula
Powered byPixInsight

Medusa Nebula

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Description

Medusa Nebula
SH2-274

The Medusa Nebula is a planetary nebula in the constellation of Gemini. It is also known as Abell 21 and Sharpless 2-274. It was originally discovered in 1955 by University of California, Los Angeles astronomer George O. Abell, who classified it as an old planetary nebula. With the computation of expansion velocities and the thermal character of the radio emission, Soviet astronomers in 1971 concluded that it was most likely a planetary nebula. As the nebula is so large, its surface brightness is very low, with surface magnitudes of between +15.99 and +25 reported.

tak130 - 72 Ha 5 min subs -20
tak106 - 60 Oiii 5 min subs -20

11 hrs

APP P.I. PHCC

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Medusa Nebula, Cy Borg