description Sharpless 2-274 Overview
Sharpless 2-274, also known as the Medusa Nebula, is a large planetary nebula located in the constellation Gemini. It was first catalogued by astronomer George Abell in 1955 as part of his survey of planetary nebulae identified on the Palomar Observatory Sky Survey photographic plates. The nebula is notable for its large apparent size but low surface brightness, making it challenging to observe visually and requiring long-exposure astrophotography to reveal its structure.
help Sharpless 2-274 FAQ
What are the other names for Sharpless 2-274?
Sharpless 2-274 is also called the Medusa Nebula and Abell 21. It is a planetary nebula in the constellation Gemini.
Who catalogued the Medusa Nebula?
Astronomer George Abell catalogued it in 1955. It was identified as part of his survey of planetary nebulae using photographic material from the Palomar Observatory Sky Survey.
What type of object is Sharpless 2-274?
It is a planetary nebula formed from the outer layers expelled by a dying star. The name does not mean a planet is involved.
How far away is the Medusa Nebula?
The Medusa Nebula is approximately 1,500 light-years from Earth. Its braided glowing filaments are responsible for the reference to Medusa's serpentine hair.
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