Beta Piscium
Beta Piscium or β Piscium, formally named Fumalsamakah /ˌfʌməlˈsæməkə/, is a blue-white hued star in the zodiac constellation of Pisces. Its apparent magnitude is 4.40, meaning it can be faintly seen with the naked eye. Based on parallax measurements taken during the Hipparcos mission, it is about 410 light-years (125 parsecs) distant from the Sun.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pisces |
| Right ascension | 23h 03m 52.61349s |
| Declination | +03° 49′ 12.1662″ |
| Apparent magnitude (V) | +4.40 |
| Characteristics | |
| Spectral type | B6Ve |
| U−B color index | −0.48 |
| B−V color index | −0.12 |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | 0.0 ± 0.6 km/s |
| Proper motion (μ) | RA: 11.76 mas/yr Dec.: −9.85 mas/yr |
| Parallax (π) | 7.99 ± 0.22 mas |
| Distance | 410 ± 10 ly (125 ± 3 pc) |
| Absolute magnitude (MV) | −1.01 |
| Details | |
| Mass | 4.7 M☉ |
| Radius | 3.6 R☉ |
| Luminosity | 523.6 L☉ |
| Surface gravity (log g) | 4.0 cgs |
| Temperature | 15500 K |
| Rotational velocity (v sin i) | 90 ± 15 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
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