NGC 2207 and IC 2163

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NGC 2207 / IC 2163
300px
A Hubble Space Telescope (HST) image of NGC 2207 and IC 2163.
Credit: HST/NASA/ESA.
Observation data (J2000 epoch)
Constellation Canis Major
Right ascension 06h 16m 22.0s / 06h 16m 28.0s[1]
Declination −21° 22′ 22″ / −21° 22′ 33″[1]
Redshift 2741 ± 15 / 2765 ± 20 km/s[1]
Distance 81 ± 39 Mly
(24.9 ± 12 Mpc)[2]
Type SAB(rs)bc pec / SB(rs)c pec[1]
Apparent dimensions (V) 4′.3 × 2′.8 / 3′.0 × 1′.2[1]
Apparent magnitude (V) 12.2 / 11.6[1]
Notable features colliding galaxies
Other designations
RR132a / RR132b,[1] PGC 018749 / 018751[1]
See also: Galaxy, List of galaxies

NGC 2207 and IC 2163 are a pair of colliding spiral galaxies about 80 million light-years away[2] in the constellation Canis Major. Both galaxies were discovered by John Herschel in 1835. So far, four supernovae have been observed in NGC 2207:

NGC 2207 is in the process of tidally stripping IC 2163.

Merging galaxies

NGC 2207 is in the process of colliding and merging with IC 2163. But unlike the Antennae or the Mice Galaxies, they are still two separate spiral galaxies. They are only in the first step of colliding and merging. Soon they will collide, probably looking a bit more like the Mice Galaxies. In about a billion years time they are expected to merge and become an elliptical galaxy or perhaps a disk galaxy.[7]

Gallery

See also

References

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External links

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