HD 178233
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra
|
| Right ascension | 19h 06m 37.7345s[1] |
| Declination | +28° 37′ 42.941″[1] |
| Apparent magnitude (V) | 5.53[2] |
| Characteristics | |
| Spectral type | F0III[3] or A7V[4] |
| U−B color index | +0.04 |
| B−V color index | 0.296±0.003[2] |
| Absolute magnitude (MV) | 2.52[2] |
| Details | |
Myr | |
| Database references | |
| SIMBAD | data |
HD 178233 is a singlelight years based on parallax measurements, but it is drifting closer to the Sun with a radial velocity of approximately −24 km/s.[5]
The
projected rotational velocity of 165.0 km/s, which is giving the star an equatorial bulge that is ~24% wider than the polar radius.[10] The star has 1.5[6] times the mass and 1.8[1] times the mean radius of the Sun. It is radiating over eight times the luminosity of the Sun from its photosphere at an effective temperature of 7,220 K.[1]
References
- ^ .
- ^ S2CID 119257644.
- ^ doi:10.1086/110819.
- ^ Bibcode:1968RGOB..135..385P.
- ^ S2CID 119231169.
- ^ S2CID 33401607.
- S2CID 119034918.
- ^ "HD 178233". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-10-11.
- S2CID 14878976.
- S2CID 119273474.