Celestial hemisphere:  Northern  ·  Constellation: Gemini (Gem)
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SH2-274  The Medusa Planetary Nebula, Ed Litoborski
SH2-274  The Medusa Planetary Nebula, Ed Litoborski

SH2-274 The Medusa Planetary Nebula

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SH2-274  The Medusa Planetary Nebula, Ed Litoborski
SH2-274  The Medusa Planetary Nebula, Ed Litoborski

SH2-274 The Medusa Planetary Nebula

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Description

The Faint Medusa taken over multiple nights..  Most time I have ever invested in a capture.
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.[4] Until the early 1970s, the nebula was thought to be a supernova remnant. 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

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  • SH2-274  The Medusa Planetary Nebula, Ed Litoborski
    Original
  • Final
    SH2-274  The Medusa Planetary Nebula, Ed Litoborski
    B

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SH2-274  The Medusa Planetary Nebula, Ed Litoborski