- Seyfert's Sextet
name = Seyfert's Sextet
caption = A
Hubble Space Telescope(HST) image of Seyfert's Sextet. Credit: HST/ NASA/ ESA.
title=NASA/IPAC Extragalactic Database
work=Results for HCG 79
member_no = 4
other_names = Serpens Sextet, HCG 79, UGC 10116,
VV 115, VII Zw 631
Seyfert's Sextet is a group of galaxies about 190 million
light-years away [http://www.laughtergenealogy.com/bin/hubble/html/seyfert.html] in the constellation Serpens Caput. The group appears to contain six members, but one of the galaxies is a background object and another "galaxy" is actually a separated part of one of the other galaxies. The gravitational interaction among these galaxies should continue for hundreds of millions of years. Ultimately, the galaxies will merge to form a single giant elliptical galaxy.
The group was discovered by
Carl Keenan Seyfertusing photographic plates made at the Barnard Observatoryof Vanderbilt University. When these results were first published in 1951, this group was the most compact group ever identified.cite journal
author=C. K. Seyfert
title=A Dense Group of Galaxies in Serpens
journal=Publications of the Astronomical Society of the Pacific
Robert's Quartet- "another compact group"
Stephan's Quintet- "a well-known compact group"
* [http://www.ne.jp/asahi/stellar/scenes/object_e/ngc6027.htm ASAHI Net Free Address Service: Seyfert's Sextet (Galaxy Group in Serpens)]
* [http://antwrp.gsfc.nasa.gov/apod/ap030124.html NASA APOD: Seyfert's Sextet]
* [http://www.seds.org/~spider/spider/Misc/seyfert6.html SEDS: Seyfert's Sextet (HCG 79)]
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