HD 48099
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Monoceros |
| Right ascension | 06h 41m 59.2309s |
| Declination | +06° 20′ 43.529″ |
| Characteristics | |
| Spectral type | O5.5V((f)) + O9V[1] |
| U−B color index | -0.9 |
| B−V color index | -0.063 |
| Astrometry | |
| Radial velocity (Rv) | +1.30 km/s |
| Proper motion (μ) | RA: 0.84 mas/yr Dec.: 2.55 mas/yr |
| Parallax (π) | 1.17 ± 0.41 mas |
| Distance | 1829[2] pc |
| Details | |
| Mass | 55 + 19[1] M☉ |
| Radius | 11.6 + 6.5[1] R☉ |
| Luminosity | 450,000 + 40,000[1] L☉ |
| Surface gravity (log g) | 4.5 + 3.5[1] cgs |
| Temperature | 44,000 + 32,000[1] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 48099 is a spectroscopic binary in the constellation Monoceros where both components are massive and luminous O stars.
Binary stars offer the opportunity to directly measure the mass of each component, but in the case the orbital inclination is very low and the masses cannot be accurately determined.
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Mahy, L.; Rauw, G.; Martins, F.; Nazé, Y.; Gosset, E.; De Becker, M.; Sana, H.; Eenens, P. (2010). "A New Investigation of the Binary Hd 48099". The Astrophysical Journal 708 (2): 1537. doi:10.1088/0004-637X/708/2/1537.
- ↑ Brown, D.; Bomans, D. J. (2005). "To see or not to see a bow shock". Astronomy and Astrophysics 439: 183. doi:10.1051/0004-6361:20041054.
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