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The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. [ 6 ] [ 7 ] [ 8 ] It lies in the constellation Canes Venatici , and was the first galaxy to be classified as a spiral galaxy. [ 9 ]
NGC 5195 (also known as Messier 51b or M51b) is a dwarf galaxy that is interacting with the Whirlpool Galaxy (also known as M51a or NGC 5194). Both galaxies are located approximately 25 million light-years away in the constellation Canes Venatici. Together, the two galaxies are one of the most famous interacting galaxy pairs.
The M51 Group is a group of galaxies located in Canes Venatici.The group is named after the brightest galaxy in the group, the Whirlpool Galaxy (M51A). Other notable members include the companion galaxy to the Whirlpool Galaxy and the Sunflower Galaxy (M63).
A spiral galaxy is a type of galaxy characterized by a central bulge of old Population II stars surrounded by ... Whirlpool Galaxy: SA(s)bc pec Canes Venatici: 9.0 ...
One of the more significant galaxies in Canes Venatici is the Whirlpool Galaxy (M51, NGC 5194) and NGC 5195, a small barred spiral galaxy that is seen face-on. This was the first galaxy recognised as having a spiral structure, this structure being first observed by Lord Rosse in 1845. [12]
It is commonly referred to as the oldest known grand design spiral galaxy in the universe, [2] but it is more accurately the earliest such galaxy known to exist in the universe, with a lookback time (the difference between the age of the universe now and the age of the universe at the time light left the galaxy [3]) of 10.7 billion years [1] in ...
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The 15th anniversary, in 2005, was celebrated with a collection of images of M51 (the Whirlpool Galaxy), and also with a section of the Eagle nebula. [2] The 15th anniversary included a collection of other content including, in multiple languages, the video release, Hubble — 15 Years of Discovery.