501 NGC 821 NGC 1023 NGC 1097 NGC 1271 NGC 1277 NGC 1332 NGC 1566 NGC 2787 NGC 3079 NGC 3115 NGC 3377 NGC 3384 NGC 3998 NGC 4151 NGC 4261 NGC 4438 NGC 4459...
19 KB (2,017 words) - 23:00, 11 November 2024
Group galaxies M31 and M32, and a few galaxies beyond the Local Group, e.g. NGC 4395. In these galaxies, the mean square (or root mean square) velocities...
79 KB (5,890 words) - 21:11, 9 November 2024
NGC 546 (also known as ESO 296-25, IRAS 01229-3819, MCG −6-4-29 and PGC 5255) is a barred spiral galaxy about 270 million light years away from Earth and...
3 KB (256 words) - 21:43, 14 August 2023
has hosted three recent Type Ib supernovae; the distant quasar APM 08279+5255, whose light is magnified and split into multiple images by the gravitational...
40 KB (4,576 words) - 04:45, 17 August 2024
Possible examples include the black holes at the cores of TON 618, NGC 6166, ESO 444-46 and NGC 4889, which are among the most massive black holes known. Some...
104 KB (11,045 words) - 15:01, 18 October 2024
NGC 5364 is a grand design spiral galaxy located 54.5 million light years away in the constellation Virgo. It is inclined to the line of sight from the...
8 KB (611 words) - 20:31, 6 November 2023
Notes Comments PC 1357+4641 Boötes Void Emission-line galaxy IRAS 14288+5255 AGN X-ray source G 1432+5302 Starburst galaxy G 1458+4944 LINER galaxy G...
9 KB (688 words) - 04:52, 13 November 2024
NGC 5247 is a face-on unbarred spiral galaxy located some 60 million light years away in the constellation Virgo. It is a member of the Virgo II Groups...
6 KB (413 words) - 08:02, 23 August 2024
include the Andromeda Galaxy, M32, M87, NGC 3115, NGC 3377, NGC 4258, NGC 4889, NGC 1277, OJ 287, APM 08279+5255 and the Sombrero Galaxy. It is now widely...
166 KB (18,724 words) - 15:12, 15 November 2024
Earth. Such quasars are called blazars. The hyperluminous quasar APM 08279+5255 was, when discovered in 1998, given an absolute magnitude of −32.2. High-resolution...
64 KB (7,722 words) - 11:44, 14 November 2024