description Blue Snowball Nebula Overview
The Blue Snowball Nebula, formally designated NGC 7662, is a planetary nebula located within the Andromeda Galaxy. Discovered by William Herschel in 1784, it’s notable for its prominent blue ring formed from expanding gas and dust ejected by a dying star. Astronomers and those studying stellar evolution and galactic structures find this object particularly interesting due to its unique morphology and relative brightness.
help Blue Snowball Nebula FAQ
Why is the Blue Snowball Nebula given that specific name?
It is named the Blue Snowball Nebula because it appears as a perfectly round, intensely bright blue disk when viewed through a telescope. The vivid blue color comes from the excited oxygen gas glowing in the planetary nebula.
What constellation is the Blue Snowball Nebula located in?
This planetary nebula is located in the northern sky within the constellation Andromeda. It is a popular target for amateur astronomers because it is relatively easy to find at high magnifications.
Who originally discovered the Blue Snowball Nebula?
The object was discovered by the famous German-British astronomer William Herschel in 1784. Herschel used his large reflecting telescopes to identify many deep sky objects, including this distinct annular disk.
What is the scientific catalog number for the Blue Snowball Nebula?
The nebula is officially cataloged as NGC 7662 in the New General Catalogue of nebulae and star clusters. It is sometimes informally referred to as NGC 7662 in addition to its colloquial blue nickname.
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