| NGC 1647 | |
| Type: | Open Cluster |
| Epoch: | J2000 |
| Constellation: | Taurus |
| Ra: | [1] |
| Dist Ly: | 1,800 ly (on average) |
| Dist Pc: | 550 ps[2] |
| Appmag V: | 6.4 |
| Size V: | 45' |
| Names: | Cr 54 |
NGC 1647 is an open cluster in the constellation Taurus. It contains nearly 90 stars and it lies at a distance of 550 parsec.[2] It is visible even with binoculars close to Aldebaran. It was discovered by William Herschel in 1784.[3] It is located behind the Taurus dark nebula complex, approximately 160 parsec away. The brightest main sequence stars are of spectral type B7. Its age is estimated to be 150 million years.[4]