HOME

TheInfoList



Click Here for Items Related To - Copeland Septet
OR:
Copeland Septet on:   [Wikipedia]   [Google]   [Amazon]

The Copeland Septet (also Copeland's Septet, Hickson Compact Group 57) is a group of galaxies in the constellation Leo that includes
NGC 3748 NGC 3748 is a lenticular galaxy with a bar located in the Leo (constellation), Leo constellation. It is located 440 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874, but also observed by Hermann ...
,
NGC 3754 NGC 3754 is a small barred spiral galaxy located in Leo. It is located 447 million light-years away from the Solar System and was discovered on April 5, 1874, by Ralph Copeland. The luminosity class of NGC 3754 is II and it is listed as a LINE ...
, NGC 3750,
NGC 3751 NGC 3751 is a type E-S0 lenticular galaxy located in the Leo constellation. It is located 450 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874. To date, a non-redshift measurement gives a dist ...
,
NGC 3745 NGC 3745 is a lenticular galaxy with a bar structure located in the constellation of Leo (constellation), Leo. NGC 3745 is located 471 million Light-year, light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874, ...
,
NGC 3753 NGC 3753 is a large spiral galaxy with a bar located in the Leo constellation. It is located 435 million light-years away from the Solar System and was discovered on February 9, 1874, by Ralph Copeland. NGC 3753 is classified as a LINER galaxy m ...
and
NGC 3746 NGC 3746 is a large barred spiral galaxy with a ring structure located in the Leo constellation. It is located 449 million light-years from the Solar System and has an approximate diameter of 165,000 light-years. NGC 3746 was discovered by Ralph ...
. The group was discovered by British astronomer Ralph Copeland in 1874. The location of Copeland's Septet is
right ascension Right ascension (abbreviated RA; symbol ) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the ( hour circle of the) point in question above the earth. When pai ...
/
declination In astronomy, declination (abbreviated dec; symbol ''δ'') is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. Declination's angle is measured north or south of t ...
(2000.0), about three degrees northwest of third magnitude star
93 Leonis 93 Leonis (93 Leo) is a binary star in the constellation Leo. Its apparent magnitude is 4.522. Based on the system's parallax, 93 Leonis is located about 233 light-years (71 parsecs) away. 93 Leonis is a double-lined spectroscopic bina ...
.


See also

*
Wild's Triplet Wild's Triplet is a group of three small, interacting spiral galaxies. The galaxies are visible in the constellation Virgo. The triplet has luminous connecting bridges and is located some 200 million light-years away. The aforementioned bridges ...
*
Zwicky's Triplet Zwicky's Triplet (Arp 103) is a group of three galaxies visible in the constellation Hercules. The other Zwicky's Triplet IC 3481 at 12h 32m, +11° 24' (2000.0) in Virgo, which is connected to PGC 41646 ("IC 3481A") as the system Arp 175, but ...
* Robert's Quartet *
Stephan's Quintet Stephan's Quintet is a visual grouping of five galaxies of which four form the first compact galaxy group ever discovered. The group, visible in the constellation Pegasus, was discovered by Édouard Stephan in 1877 at the Marseille Observatory ...
and NGC 7331 Group (also known as the ''Deer Lick Group'' located about half a degree northeast of Stephan's Quintet) *
Seyfert's Sextet Seyfert's Sextet is a group of galaxies about 190 million light-years away in the constellation Serpens. The group appears to contain six members, but one of the galaxies, NGC 6027d, is a background object and another "galaxy," NGC 6027e, is ...


References

Leo (constellation) 57 {{galaxy-cluster-stub