| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Capricornus |
| Right ascension | 20h 46m 05.73s |
| Declination | −25° 16′ 15.2″ |
| Apparent magnitude (V) | 4.15 |
| Characteristics | |
| Spectral type | F5 V |
| U−B color index | 0.00 |
| B−V color index | 0.42 |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 25.8 km/s |
| Proper motion (μ) | RA: -51.38 mas/yr Dec.: -156.66 mas/yr |
| Parallax (π) | 68.16 ± 0.91 mas |
| Distance | 47.9 ± 0.6 ly (14.7 ± 0.2 pc) |
| Absolute magnitude (MV) | 3.32 |
| Other designations | |
Psi Capricorni (ψ Cap, ψ Capricorni) is a star in the constellation Capricornus. ψ Capricorni is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.13. It is approximately 47.9 light years from Earth. The measured rotational velocity of this star is approximately 37 km/s (the Sun has an equatorial rotation velocity of 2 km/s).
In Chinese, 天田 (Tiān Tián), meaning Celestial Farmland, refers to an asterism consisting of ψ Capricorni, ω Capricorni, 3 Piscis Austrini, and 24 Capricorni.[1] Consequently, ω Capricorni itself is known as 天田四 (Tiān Tián sì, English: the Fourth Star of Celestial Farmland.)[2]
In R.H.Allen's version, this star was represent the state Yue.[3]
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||