Subaru Gallery
Subaru Gallery TOPInteracting Galaxy NGC 474
January 2, 2025
Last updated: September 30, 2025
Last updated: September 30, 2025
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NGC 474 is more than twice the size of the Milky Way Galaxy, which has a 100,000 light-year diameter stellar disk. Although it is classified as an elliptical galaxy which is typically smooth and lacking features, this galaxy has arc-like and elongated tail-like features. These features are thought to have formed at a head-on collision with a dwarf galaxy hundreds of millions of years ago.
(Credit: NAOJ; Image provided by Masayuki Tanaka)
【Distance from Earth】About 100 million light-years
【Instrument】Hyper Suprime-Cam (HSC)
NGC 474 is more than twice the size of the Milky Way Galaxy, which has a 100,000 light-year diameter stellar disk. Although it is classified as an elliptical galaxy which is typically smooth and lacking features, this galaxy has arc-like and elongated tail-like features. These features are thought to have formed at a head-on collision with a dwarf galaxy hundreds of millions of years ago.
(Credit: NAOJ; Image provided by Masayuki Tanaka)
【Distance from Earth】About 100 million light-years
【Instrument】Hyper Suprime-Cam (HSC)
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