BF Orionis
BF Orionis is a young Herbig Ae/Be star in the constellation of Orion about 1250 light years away, within the Orion Nebula. It is the most massive star of the small birth cluster of four stars.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Orion |
| Right ascension | 05h 37m 13.2624s |
| Declination | −06° 35′ 00.5654″ |
| Apparent magnitude (V) | 9.69 |
| Characteristics | |
| Evolutionary stage | Herbig Ae/Be star |
| Spectral type | A5II-III |
| Apparent magnitude (g) | 10.38 |
| Astrometry | |
| Proper motion (μ) | RA: 0.873±0.025 mas/yr Dec.: 0.654±0.023 mas/yr |
| Parallax (π) | 2.6173 ± 0.0279 mas |
| Distance | 1,250 ± 10 ly (382 ± 4 pc) |
| Details | |
| Mass | 1.85+0.15 −0.00 M☉ |
| Radius | 1.59±0.20 R☉ |
| Luminosity | 39 L☉ |
| Surface gravity (log g) | 3.5 cgs |
| Temperature | 8750 K |
| Rotational velocity (v sin i) | 37±2 km/s |
| Age | 17.14+2.80 −0.00 Myr |
| Other designations | |
BD-06 1259, GSC 04778-01087, HIP 26403, 2MASS J05371326-0635005, Gaia DR2 3016930993175537536, Gaia EDR3 3016930993175889792, TYC 4778-1087-1 | |
| Database references | |
| SIMBAD | data |
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