64 Piscium
| Observation data Epoch J2000 Equinox J2000 | ||
|---|---|---|
| Constellation | Pisces | |
| Right ascension | 00h 48m 58.70805s[1] | |
| Declination | +16° 56′ 26.3132″[1] | |
| Apparent magnitude (V) | 5.07[2] | |
| Characteristics | ||
| Spectral type | F8 V + F8 V[3] | |
| B−V color index | 0.502[2] | |
| Absolute magnitude (MV) | 3.22[5] | |
Semi-amplitude (K1)(primary) | 57.552±0.037 km/s | |
| Semi-amplitude (K2) (secondary) | 59.557±0.038 km/s | |
| Details Gyr | ||
| 64 Psc Ab | ||
| Mass | 1.170±0.018 M☉ | |
| Radius | 1.18±0.10 R☉ | |
| Luminosity | 1.85 L☉ | |
| Temperature | 6,200±200 K | |
| Database references | ||
| SIMBAD | data | |
64 Piscium is the
light years. The system is moving further from the Sun with a radial velocity of +3.76 km/s.[4]
This is a double-lined
semimajor axis of 6.55 mas.[6]
Both stars in this system have a
mass of the Sun while the secondary has 1.17 times the Sun's mass.[3] Both stars are larger and brighter than the Sun, with higher temperature photospheres − having effective temperatures of around 6,200 K compared to 5,772 K for the Sun.[13] The age of the system is estimated as 6.8[8] billion years and they have a similar element abundance as the Sun.[7]
In 2010, the system was identified as a
The
AU with an orbital period of around 50,000 years.[11]
References
- ^ S2CID 18759600.
- ^ Bibcode:1997ESASP1200.....E.
- ^ S2CID 14006009.
- ^ S2CID 59451347, A61.
- S2CID 119257644.
- ^ S2CID 16038964.
- ^ S2CID 56118016.
- ^ S2CID 118539505.
- ^ "64 Psc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-01-18.
- ^ S2CID 368553For the adopted physical separation, see Table 11 in the appendix.
- ^ S2CID 15180588.
- Bibcode:1979A&AS...35..203N.
- NASA Goddard Space Flight Center, retrieved 2018-01-21.
- S2CID 122844702.
- S2CID 118438871, 15.
