NGC 4567 and NGC 4568

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NGC 4567 and NGC 4568

The Siamese Twins
with NGC 4567 (top) and NGC 4568 (bottom)
Observation data: J2000.0 epoch
Constellation: Virgo
Right ascension: 12h 36m 34.3s
Declination: +11° 14′ 17″
Redshift:
Distance: 120 million ly
Type: SA(rs)bc / SA(rs)bc
Apparent dimensions (V): 4.6' × 2.1'
Apparent magnitude (V): +10.9
Notable features: colliding galaxies
Other designations
NGC 4567/8, UGC 7776
See also: Galaxy, List of galaxies


NGC 4567 and NGC 4568 (nicknamed the Siamese Twins or the Butterfly Galaxies) are a set of spiral galaxies about 120 million light-years away in the constellation Virgo. They were both discovered by Friedrich Wilhelm Herschel in 1784. They are part of the Virgo cluster of galaxies. Only one supernova (SN 2004cc) was observed in the Siamese Twins.

These galaxies are in the process of colliding and merging with each other. They were named "Siamese Twins" because they look like they're connected.

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