| Observation data EpochJ2000.0 EquinoxJ2000.0 (ICRS) | |
|---|---|
| Constellation | Pisces |
| Right ascension | 00h 36m 47.31100s[1] |
| Declination | 15° 13′ 54.1903″[1] |
| Apparent magnitude (V) | 5.87–5.88[2] |
| Characteristics | |
| Spectral type | B2.5IV[3] |
| U−Bcolor index | −0.67[4] |
| B−Vcolor index | −0.15[4] |
| Variable type | β Cep[2] |
| Astrometry | |
| Radial velocity (Rv) | −8.0±0.9[5] km/s |
| Proper motion (μ) | RA: +3.918[1]mas/yr Dec.: −9.890[1]mas/yr |
| Parallax (π) | 3.5167±0.0782 mas[1] |
| Distance | 930 ± 20 ly (284 ± 6 pc) |
| Details[6] | |
| Mass | 5.4±0.9 M☉ |
| Radius | 3.3±1.0 R☉ |
| Luminosity | 794 L☉ |
| Surface gravity (log g) | 4.16±0.20 cgs |
| Temperature | 17,300 K |
| Rotational velocity (v sin i) | 33±17 km/s |
| Other designations | |
| AG Piscium,HD 3379,HIP 2903,HR 155,SAO 91995,BD+14°76 | |
| Database references | |
| SIMBAD | data |
53 Piscium, abbreviated as53 Psc, is astar in the zodiacconstellation ofPisces. With anapparent magnitude of about 5.9, it is just barely visible to the naked eye.parallax measurements made by theHipparcos spacecraft place the star at a distance of about 930light-years (284parsecs) away.
Thespectral type of 53 Piscium is B2.5IV, meaning it is aB-typesubgiant. It is 5.4 times more massive than theSun, and has aluminosity of almost 800 L☉. Its surface temperature is over 17,000K, typical of a B-type star.
53 Piscium is aBeta Cephei variable, varying by 0.01 magnitudes just under every two hours.[2] For that reason it has been given theAG Piscium. It has also been found to have some variability in common withslowly pulsating B stars.[7]
