| PGC 1228197 | |
|---|---|
 PGC 1228197, as seen by Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 21h 13m 47.42s |
| Declination | +02d 28m 34.90s |
| Redshift | 0.050788 |
| Heliocentric radial velocity | 15,226 km/s |
| Distance | 700 Mly (214.62 Mpc) |
| Apparent magnitude (V) | 0.20 |
| Apparent magnitude (B) | 0.26 |
| Characteristics | |
| Type | S |
| Size | 160,000 ly |
| Apparent size (V) | 0.45' x 0.23' |
| Other designations | |
| LEDA 1228197, 2MASX J21134738+0228347, WINGS J211347.41+022834.9, JO206 | |
PGC 1228197 known as WINGS J211347.41+022834.9 and JO206, is a large spiral galaxy located 700 million light-years away towards the constellation of Aquarius. [1] [2] The galaxy is estimated to be at least 160,000 light-years in diameter, making it somehow bigger than the Milky Way. With a radial velocity of 15,226 kilometers per second, it is slowly drifting away. [3]
PGC 1228197 is a member of a poor galaxy cluster called II ZW 108. It has a stellar mass of 8.5 × 1010 M○. [4]
PGC 1228197 is classified as a jellyfish galaxy. [5] [6] It has a lengthy tail that is ≥90 kpc wide, with ionized gas stripped from the galaxy. [7] The galaxy is surrounded by its own magnetized intracluster medium drape. [8]
Such process is caused when it interacts with other galaxies causing it to run into intracluster medium. The galaxy then undergoes a process of ram-pressure where its gas is stripped, forming long galactic tendrils of stars. [5] [9] [10] Because matter is accreted into its supermassive black hole, its active galactic nucleus is trigged. [11]
