FF Aquilae
 |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 18h 58m 14.7474s |
| Declination | +17° 21′ 39.283″ |
| Apparent magnitude (V) | 5.31 |
| Characteristics | |
| Spectral type | F5Iab |
| U−B color index | 0.43 |
| B−V color index | 0.8 |
| Variable type | Cepheid variable |
| Astrometry | |
| Radial velocity (Rv) | -22 km/s |
| Proper motion (μ) | RA: 0.08 mas/yr Dec.: -9.98 mas/yr |
| Parallax (π) | 1.32 ± 0.72 mas |
| Distance | approx. 2,000 ly (approx. 800 pc) |
| Absolute magnitude (MV) | -4.1 |
| Details | |
| Mass | 7 M☉ |
| Radius | 55 R☉ |
| Luminosity | 5000 L☉ |
| Temperature | 6640 K |
| Rotational velocity (v sin i) | 17 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
FF Aquilae (CHA 82Aa) is a classical cepheid variable (delta Cep type).
References
External links
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