HD 194244
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 20h 24m 37.4982s |
| Declination | +01° 04′ 06.261″ |
| Apparent magnitude (V) | 6.144 |
| Characteristics | |
| Spectral type | B9V |
| U−B color index | -0.14 |
| B−V color index | -0.04 |
| Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | -9 km/s |
| Proper motion (μ) | RA: 7.93 mas/yr Dec.: 5.49 mas/yr |
| Parallax (π) | 3.88 ± 0.92 mas |
| Distance | approx. 800 ly (approx. 260 pc) |
| Absolute magnitude (MV) | 6.107 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 20,000 L☉ |
| Temperature | 10,000–30,000 K |
| Rotational velocity (v sin i) | 265 Km/s km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 194244 is a variable star. It is a part of the constellation Aquila.
References
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||