1784, by William Herschel. It is interacting with NGC 2802. One supernova has been observed in NGC 2803: SN 2017ilf (type Ia, mag. 18). Brown, A. G. A...
3 KB (199 words) - 17:51, 18 January 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...
76 KB (5,741 words) - 11:57, 9 August 2024
NGC 255 is a barred spiral galaxy in the constellation Cetus. It was discovered on November 27, 1785, by Frederick William Herschel. RC3 D0 (blue) values...
3 KB (205 words) - 14:57, 18 January 2024
NGC 2800, also known as PGC 26302, is an elliptical galaxy in the constellation Ursa Major. It was discovered February 17, 1831 by William Herschel. Skrutskie...
3 KB (190 words) - 20:24, 12 August 2023
NGC 2903 is an isolated barred spiral galaxy in the equatorial constellation of Leo, positioned about 1.5° due south of Lambda Leonis. It was discovered...
10 KB (846 words) - 00:20, 3 December 2023
normal galaxy observed, forms. Formation of hyper-luminous quasar SDSS J0100+2802, which harbors a black hole with mass of 12 billion solar masses, one of...
36 KB (5,006 words) - 11:31, 16 August 2024
NGC 2509 is an open cluster in the constellation of Puppis. It was discovered on 3 December 1783 by William Herschel. It was described as "bright, pretty...
3 KB (286 words) - 21:06, 28 June 2023
with the instrument or survey that discovered them. Examples are SDSS J0100+2802 (where SDSS stands for Sloan Digital Sky Survey), and RX J1131−1231, observed...
50 KB (6,481 words) - 17:19, 5 April 2024
NGC 2950 is a lenticular galaxy in the northern constellation of Ursa Major, about 50 million light years from the Milky Way and receding with a heliocentric...
9 KB (501 words) - 21:01, 21 October 2023
/ˈviːɡə/ or /ˈveɪɡə/ Right ascension 18h 36m 56.33635s Declination +38° 47′ 01.2802″ Apparent magnitude (V) +0.026 (−0.02 – +0.07) Characteristics Evolutionary stage...
91 KB (9,575 words) - 00:08, 23 July 2024
19475+3119 IRAS 20324+4057 Kronberger 61 M1-92 NGC 6826 NGC 6881 NGC 6884 NGC 7008 NGC 7026 NGC 7027 NGC 7048 Soap Bubble Nebula WR Crescent Nebula SNR...
20 KB (1,979 words) - 21:58, 19 November 2023