description Sh2-301 Overview
Sh2-301 is an emission nebula and H II region in the constellation Canis Major. It is also identified as Gum 5 and is associated with the star ALS 207, whose radiation helps ionize the surrounding gas. Research has described the region as a blister nebula, a type of star-forming structure in which expanding ionized gas produces a shell or cavity within a surrounding molecular cloud.
help Sh2-301 FAQ
What is Sh2-301?
Sh2-301 is an emission nebula and H II region in Canis Major. It is also known as Gum 5 and RCW 6.
What star is associated with Sh2-301?
Sh2-301 is associated with the star ALS 207. Radiation from that star helps ionize the surrounding hydrogen gas, making the nebula glow.
What is a blister nebula?
A blister nebula is a star-forming region where hot stars and stellar winds create a bubble or cavity in surrounding gas. Sh2-301 has been discussed as an example of this type of structure.
Can Sh2-301 be seen with the naked eye?
Sh2-301 is a faint deep-sky emission nebula, so it is not normally a naked-eye object. Observers generally use astrophotography or a telescope with suitable filters to study its glowing gas.
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