Iota Capricorni
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Capricornus |
| Right ascension | 21h 22m 14.79598s |
| Declination | −16° 50′ 04.3580″ |
| Apparent magnitude (V) | +4.296 |
| Characteristics | |
| Spectral type | G8 III |
| U−B color index | +0.63 |
| B−V color index | +0.89 |
| Variable type | BY Dra |
| Astrometry | |
| Radial velocity (Rv) | +12.31±0.13 km/s |
| Proper motion (μ) | RA: 29.403±0.189 mas/yr Dec.: 4.909±0.123 mas/yr |
| Parallax (π) | 16.2048±0.1688 mas |
| Distance | 201 ± 2 ly (61.7 ± 0.6 pc) |
| Absolute magnitude (MV) | +0.18 |
| Details | |
| Mass | 2.89±0.08 M☉ |
| Radius | 10.67±0.62 R☉ |
| Luminosity | 83 L☉ |
| Surface gravity (log g) | 3.05±0.10 cgs |
| Temperature | 5,200±28 K |
| Metallicity [Fe/H] | 0.05±0.05 dex |
| Rotation | 68 d |
| Rotational velocity (v sin i) | 4.37±0.45 km/s |
| Age | 390 Myr |
| Other designations | |
| ι Cap, 32 Cap, BD−17°6245, FK5 1561, HD 203387, HIP 105515, HR 8167, SAO 164346 | |
| Database references | |
| SIMBAD | data |
Iota Capricorni is a solitary, yellow-hued star in the southern constellation of Capricornus. It name is a Bayer designation that is Latinized from ι Capricorni, and abbreviated Iota Cap or ι Cap. This star can be seen with the naked eye, having an apparent visual magnitude of +4.3. It is positioned near the ecliptic and thus is subject to lunar occultation.
Based upon an annual parallax shift of 16.2 mas as seen from the Earth, the star is located about 201 light-years (62 pc) from the Sun. At that distance, the visual magnitude of the star is diminished by an extinction factor of 0.08 due to interstellar dust. It is drifting further away with a line of sight velocity of +12 km/s.