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NGC 4567 and NGC 4568 (nicknamed the Butterfly Galaxies [4] or Siamese Twins [NB 1] [5]) are a set of unbarred spiral galaxies about 60 million light-years away [1] in the constellation Virgo. They were both discovered by William Herschel in 1784. They are part of the Virgo Cluster of galaxies.
NGC 4565 is a giant spiral galaxy more luminous than the Andromeda Galaxy. [6] Much speculation exists in literature as to the nature of the central bulge. In the absence of clear-cut dynamical data on the motions of stars in the bulge, the photometric data alone cannot adjudge among various options put forth.
NGC 4567 and NGC 4568 Also known as the Butterfly Galaxies , NGC 4567 and 4586 are two unbarred spiral galaxies that are colliding. The pair were first discovered by astronomer William Herschel in 1784, but did not earn their name until observer Ralph Copeland called them the Siamese Twins in the late 1800s due to their almost identical shape ...
NGC 4676, or the Mice Galaxies, are two spiral galaxies in the constellation Coma Berenices. About 290 million light-years distant, [ 2 ] they have begun the process of colliding and merging. Their "mice" name refers to the long tails produced by tidal action —the relative difference between gravitational pulls on the near and far parts of ...
NGC 3314; NGC 3861; NGC 4567 and NGC 4568; NGC 4647 This page was last edited on 23 December 2017, at 12:30 (UTC). Text is available under the Creative Commons ...
You can see in the center there is a sharper area where the Hubble data were used, and outside of that is all the ground based data. ... NGC 4567とNGC 4568; SN ...
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Butterfly Galaxies (Siamese Twins Galaxies, NGC 4567 & NGC 4568) 2 galaxies Two spiral galaxies in the process of starting to merge. [citation needed] Mice Galaxies (NGC 4676, NGC 4676A & NGC 4676B, IC 819 & IC 820, Arp 242) 2 galaxies Two spiral galaxies currently tidally interacting and in the process of merger. [citation needed] NGC 520: 2 ...