V1339 Aquilae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 50m 17.4793s |
| Declination | +07° 54′ 08.707″ |
| Apparent magnitude (V) | 6.484 |
| Characteristics | |
| Spectral type | B2.5IVe |
| U−B color index | -0.7 |
| B−V color index | -0.1 |
| Variable type | Be star |
| Astrometry | |
| Radial velocity (Rv) | -30.1 km/s |
| Proper motion (μ) | RA: -1.08 mas/yr Dec.: -3.96 mas/yr |
| Parallax (π) | 2.1 ± 0.92 mas |
| Distance | approx. 1,600 ly (approx. 500 pc) |
| Absolute magnitude (MV) | 6.339 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 20,000 L☉ |
| Temperature | 10,000–30,000 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
V1339 Aquilae is a Be star. Binary star nature discovered by speckle interferometry.
References
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