| Trumpler 3 | |
|---|---|
 Trumpler 3 as seen from the Stellarium Software | |
| Observation data (J2000.0 epoch) | |
| Right ascension | 03h 12m 00s |
| Declination | +63° 15′ 00″ |
| Distance | 2250 ly (690 pc) |
| Apparent magnitude (V) | 7.01 |
| Physical characteristics | |
| Other designations | Cr 36, Cl Harvard 1, C 0307+630 |
| Associations | |
| Constellation | Cassiopeia |
Trumpler 3 is an open cluster located in the constellation Cassiopeia. It has the visual magnitude of 7 and is one of the most famous star clusters in the Trumpler catalogue.
It has two bright stars, TYC 4053-658-1 and TYC 4053-466-1 of apparent magnitudes 10.16 and 10.02, respectively.1
