V1291 Aquilae
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 53m 18.7358s |
| Declination | −03° 06′ 52.069″ |
| Apparent magnitude (V) | 5.633 |
| Characteristics | |
| Spectral type | A5pv |
| U−B color index | 0.1 |
| B−V color index | 0.2 |
| Variable type | Alpha² CnV variable |
| Astrometry | |
| Radial velocity (Rv) | -20.4 km/s |
| Proper motion (μ) | RA: 21.64 mas/yr Dec.: 13.62 mas/yr |
| Parallax (π) | 11.79 ± 0.93 mas |
| Distance | 280 ± 20 ly (85 ± 7 pc) |
| Absolute magnitude (MV) | 5.839 |
| Details | |
| Mass | 3.1 M☉ |
| Radius | 2.1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Rotational velocity (v sin i) | 2 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
V1291 Aquilae is variable star.
References
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