53 Piscium
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Pisces |
| Right ascension | 00h 36m 47.31222s |
| Declination | 15° 13′ 54.2151″ |
| Apparent magnitude (V) | 5.87–5.88 |
| Characteristics | |
| Spectral type | B2.5IV |
| U−B color index | −0.67 |
| B−V color index | −0.15 |
| Variable type | β Cep |
| Astrometry | |
| Radial velocity (Rv) | −8.0 ± 0.9 km/s |
| Proper motion (μ) |
RA: 0.85 mas/yr Dec.: −13.68 mas/yr |
| Parallax (π) | 3.14 ± 0.30mas |
| Distance | 1,040 ± 100 ly (320 ± 30 pc) |
| Details | |
| 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 | 17300 K |
| Rotational velocity (v sin i) | 33 ± 17 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
53 Piscium, abbreviated as 53 Psc, is a star in the zodiac constellation of Pisces. With an apparent magnitude of about 5.9, it is just barely visible to the naked eye. parallax measurements made by the Hipparcos spacecraft place the star at a distance of about 1,040 light-years (320 parsecs) away.
The spectral type of 53 Piscium is B2.5IV, meaning it is a B-type subgiant. It is 5.4 times more massive than the Sun, and has a luminosity of almost 800 L☉. Its surface temperature is over 17,000 K, typical of a B-type star.
53 Piscium is a Beta Cephei variable, varying by 0.01 magnitudes just under every two hours. For that reason it has been given the AG Piscium. It has also been found to have some variability in common with Slowly pulsating B stars.
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