HD 173936
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 18h 46m 13.01070s |
| Declination | +41° 26′ 30.5041″ |
| Apparent magnitude (V) | 6.06 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | B6 V |
| B−V color index | −0.120±0.005 |
| Astrometry | |
| Radial velocity (Rv) | −19.1±2.9 km/s |
| Proper motion (μ) | RA: −1.441 mas/yr Dec.: +0.858 mas/yr |
| Parallax (π) | 3.6200±0.0622 mas |
| Distance | 900 ± 20 ly (276 ± 5 pc) |
| Absolute magnitude (MV) | −1.14 |
| Details | |
| Mass | 4.59±0.23 M☉ |
| Luminosity | 701+194 −151 L☉ |
| Surface gravity (log g) | 3.81±0.08 cgs |
| Temperature | 13,932±96 K |
| Metallicity [Fe/H] | −0.04±0.08 dex |
| Rotational velocity (v sin i) | 116±8 km/s |
| Age | 22.4 Gyr |
| Other designations | |
| BD+41°3137, FK5 3493, GC 25732, HD 173936, HIP 92098, HR 7073, SAO 47779 | |
| Database references | |
| SIMBAD | data |
HD 173936 is a star in the northern constellation of Lyra. It has a blue-white hue and is just barely visible to the naked eye with an apparent visual magnitude of 6.06. Based upon parallax measurements, the star is located at a distance of approximately 900 light years from the Sun, and has an absolute magnitude of −1.14. It is drifting closer with a radial velocity of −19 km/s.
This object is a B-type main-sequence star with a stellar classification of B6 V. It is around 22.4 million years old with 4.6 times the mass of the Sun and has a high rate of spin, showing a projected rotational velocity of 116 km/s. It is radiating 701 times the luminosity of the Sun from its photosphere at an effective temperature of 13,932 K.