Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Pisces |
Right ascension | 01h 45m 23.63185s[1] |
Declination | +09° 09′ 27.8530″[1] |
Apparent magnitude (V) | 4.27[2] |
Characteristics | |
Evolutionary stage | Horizontal branch[3] |
Spectral type | K0 III[2] |
U−B color index | +0.736[4] |
B−V color index | +0.959[4] |
Astrometry | |
Proper motion (μ) | RA: +72.98[1] mas/yr Dec.: +39.30[1] mas/yr |
Parallax (π) | 11.67 ± 0.67 mas[1] |
Distance | 280 ± 20 ly (86 ± 5 pc) |
Absolute magnitude (MV) | −0.22[2] |
Details[5] | |
Mass | 3.03 M☉ |
Radius | 14.38±0.21[6] R☉ |
Luminosity | 132 L☉ |
Surface gravity (log g) | 2.57 cgs |
Temperature | 5,004 K |
Metallicity [Fe/H] | 0.10 dex |
Rotational velocity (v sin i) | 2.88 km/s |
Age | 390 Myr |
Other designations | |
Database references | |
SIMBAD | data |
Omicron Piscium (ο Piscium, abbreviated Omi Psc, ο Psc) is a binary star in the constellation of Pisces. It is visible to the naked eye, having an apparent visual magnitude of 4.27.[2] Based upon an annual parallax shift of 11.67 mas as seen from the Earth,[1] the system is located roughly 280 light-years from the Sun. It is positioned near the ecliptic, so is subject to occultation by the Moon.[8] It is a member of the thin disk population of the Milky Way.[5]
The two components are designated Omicron Piscium A (formally named Torcular /ˈtɔːrkjʊlər/)[9] and B.
vanLeeuwen2007
was invoked but never defined (see the help page).Setaiwan2004
was invoked but never defined (see the help page).Alves2000
was invoked but never defined (see the help page).Jennens1975
was invoked but never defined (see the help page).Jofre2015
was invoked but never defined (see the help page).Baines2023
was invoked but never defined (see the help page).SIMBAD
was invoked but never defined (see the help page).Richichi2016a
was invoked but never defined (see the help page).