| NGC 254 | |
| Epoch: | J2000 |
| Constellation Name: | Sculptor |
| Ra: | [1] |
| Z: | 0.005434[2] |
| H Radial V: | 1629 |
| Dist Ly: | 17.1Mpc |
| Type: | (R)SA(rl)0+ |
| Appmag V: | 11.82 |
| Appmag B: | 11.62 |
| Size V: | 2.6 × 1.7[3] |
| Names: | MCG-05-03-005, PGC 2778 |
NGC 254 is a lenticular galaxy located in the constellation Sculptor. It was discovered by John Herschel in 1834.[3] It is in a galaxy group with NGC 134.
NGC 254 is an example of a ring galaxy, a galaxy with a ring, and in this case, no central bar. Across the entire galaxy disk, there is a disk of ionized gas rotating in the direction opposite the stellar disk's rotation. This situation may have arose when a retrograde-orbiting satellite galaxy accreted onto the galaxy itself, some 1 billion years ago.[4]