| NGC 688 | |
|---|---|
Pan-STARRS image of NGC 688 | |
| Observation data (J2000 epoch) | |
| Constellation | Triangulum |
| Right ascension | 01h 50m 44.2s |
| Declination | 35° 17′ 04″ |
| Redshift | 0.013846 |
| Heliocentric radial velocity | 4151 km/s |
| Distance | 193 Mly (59.2 Mpc) |
| Group or cluster | Abell 262 |
| Apparent magnitude (V) | 13.35 |
| Characteristics | |
| Type | SBb (R')SAB(rs)b |
| Size | ~150,000 ly (45 kpc) (estimated) |
| Apparent size (V) | 2.5 x 1.5 |
| Other designations | |
| CGCG 522-20, IRAS 01478+3502, KUG 0147+350, MCG 6-5-15, Mrk 1009, PGC 6799, UGC 1302 | |
NGC 688 is a barred spiral galaxy with starburst activity located 190 million light-years away in the constellation Triangulum. It was discovered by astronomer Heinrich d'Arrest on September 16, 1865 and is a member of the galaxy cluster Abell 262.