UGC 3855
From Wikipedia, the free encyclopedia
| UGC 3855 | |
|---|---|
 UGC 3855 and a foreground star imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Lynx |
| Right ascension | 07h 28m 12.8469s[1] |
| Declination | +58° 30′ 22.881″[1] |
| Redshift | 0.010564±0.0000270[1] |
| Heliocentric radial velocity | 3,167±8 km/s[1] |
| Distance | 130.95 ± 11.37 Mly (40.150 ± 3.486 Mpc)[1] |
| Characteristics | |
| Type | Sab[1] |
| Size | ~93,200 ly (28.59 kpc) (estimated)[1] |
| Other designations | |
| IRAS F07239+5836, 2MASX J07281299+5830242, MCG +10-11-052, PGC 21067, CGCG 286-020[1] | |
UGC 3855, also known as PGC 21067 or sometimes as the Modest galaxy, is a spiral galaxy in the constellation of Lynx.[2][3] Its velocity with respect to the cosmic microwave background is 3,236±9 km/s,[1] which corresponds to a Hubble distance of 155.7 ± 10.9 Mly (47.73 ± 3.35 Mpc). However, 4 non-redshift measurements give a closer mean distance of 130.95 ± 11.37 Mly (40.150 ± 3.486 Mpc).[4] The first known reference to this galaxy comes from Part 1 of the Morphological Catalogue of Galaxies, published in 1962, where it is listed as MCG +10-11-052.[5]
It is a relatively old galaxy with a stellar population around 10.6 billion years old. It also has a low rate of star formation of about 0.2 solar masses per year.[6]
