description Bubble Nebula in Barnard's Galaxy Overview
The Bubble Nebula in Barnard's Galaxy is an H II region, a cloud of ionized gas associated with massive-star formation, within the dwarf irregular galaxy NGC 6822. NGC 6822 is also called Barnard's Galaxy and lies in the constellation Sagittarius as a member of the Local Group. The object is catalogued as Hubble 1925 I, reflecting its inclusion in Edwin Hubble's 1925 study of nebulae in NGC 6822.
help Bubble Nebula in Barnard's Galaxy FAQ
What is the Bubble Nebula in Barnard's Galaxy?
It is an H II region, meaning a cloud of ionized gas associated with massive-star formation. The nebula is located inside NGC 6822, the dwarf irregular galaxy also called Barnard's Galaxy.
Where is Barnard's Galaxy located?
NGC 6822 lies in the constellation Sagittarius. It is a member of the Local Group, the nearby collection of galaxies that includes the Milky Way.
Is the Bubble Nebula in the Milky Way?
No. It is in NGC 6822, a separate dwarf irregular galaxy outside the Milky Way. Barnard's Galaxy is the common name for that host galaxy.
What does H II mean in astronomy?
H II describes ionized hydrogen, where hydrogen atoms have lost their electrons. Such regions are often linked to hot, massive young stars and active star formation.
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