Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Pisces |
Right ascension | 01h 26m 15.26209s [1] |
Declination | +19° 10′ 20.4526″ [1] |
Apparent magnitude (V) | +5.344 [2] |
Characteristics | |
Spectral type | F2 V [3] |
B−V color index | +0.374 [2] |
Astrometry | |
Radial velocity (Rv) | −7.7±1.0 [4] km/s |
Proper motion (μ) |
RA: −26.89
[1]
mas/
yr Dec.: +11.12 [1] mas/ yr |
Parallax (π) | 39.66 ± 0.25 mas [1] |
Distance | 82.2 ± 0.5
ly (25.2 ± 0.2 pc) |
Absolute magnitude (MV) | +3.34 [5] |
Details | |
Mass | 1.31 [6] M☉ |
Radius | 1.1 [7] R☉ |
Luminosity | 3.6 [8] L☉ |
Surface gravity (log g) | 4.41±0.14 [6] cgs |
Temperature | 6,822±232 [6] K |
Metallicity [Fe/H] | −0.31 [9] dex |
Rotational velocity (v sin i) | 60.1 [10] km/s |
Age | 778 [6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
Rho Piscium (ρ Piscium) is a solitary, [12] yellow-hued star in the zodiac constellation of Pisces. With an apparent visual magnitude of +5.34, [2] it is faintly visible to the naked eye. Based upon an annual parallax shift of 39.66 mas as seen from Earth, [1] it is located 82 light years from the Sun. It is a member of the thin disk population of the Milky Way. [9]
This is an F-type main sequence star with a stellar classification of F2 V. [3] It is a suspected variable star that ranges in magnitude from a maximum of 5.35 to a minimum of 5.44 magnitude. [13] The star is a source of X-ray emission with a luminosity of 117.6×1020 W. [14] It is 778 [6] million years old and is spinning with a projected rotational velocity of 60.1 km/s. [10] The star has 1.3 [6] times the mass of the Sun and about 1.1 [7] times the Sun's radius. It is radiating 3.6 [8] times the Sun's luminosity from its photosphere at an effective temperature of 6,822 K. [6]
In Chinese, 右更 (Yòu Gèng), meaning Official in Charge of the Pasturing, refers to an asterism consisting of ρ Piscium, η Piscium, π Piscium, ο Piscium and 104 Piscium. Consequently, the Chinese name for ρ Piscium itself is 右更一 (Yòu Gèng yī, English: the First Star of Official in Charge of the Pasturing.) [15]
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cite web}}
: CS1 maint: postscript (
link)
Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Pisces |
Right ascension | 01h 26m 15.26209s [1] |
Declination | +19° 10′ 20.4526″ [1] |
Apparent magnitude (V) | +5.344 [2] |
Characteristics | |
Spectral type | F2 V [3] |
B−V color index | +0.374 [2] |
Astrometry | |
Radial velocity (Rv) | −7.7±1.0 [4] km/s |
Proper motion (μ) |
RA: −26.89
[1]
mas/
yr Dec.: +11.12 [1] mas/ yr |
Parallax (π) | 39.66 ± 0.25 mas [1] |
Distance | 82.2 ± 0.5
ly (25.2 ± 0.2 pc) |
Absolute magnitude (MV) | +3.34 [5] |
Details | |
Mass | 1.31 [6] M☉ |
Radius | 1.1 [7] R☉ |
Luminosity | 3.6 [8] L☉ |
Surface gravity (log g) | 4.41±0.14 [6] cgs |
Temperature | 6,822±232 [6] K |
Metallicity [Fe/H] | −0.31 [9] dex |
Rotational velocity (v sin i) | 60.1 [10] km/s |
Age | 778 [6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
Rho Piscium (ρ Piscium) is a solitary, [12] yellow-hued star in the zodiac constellation of Pisces. With an apparent visual magnitude of +5.34, [2] it is faintly visible to the naked eye. Based upon an annual parallax shift of 39.66 mas as seen from Earth, [1] it is located 82 light years from the Sun. It is a member of the thin disk population of the Milky Way. [9]
This is an F-type main sequence star with a stellar classification of F2 V. [3] It is a suspected variable star that ranges in magnitude from a maximum of 5.35 to a minimum of 5.44 magnitude. [13] The star is a source of X-ray emission with a luminosity of 117.6×1020 W. [14] It is 778 [6] million years old and is spinning with a projected rotational velocity of 60.1 km/s. [10] The star has 1.3 [6] times the mass of the Sun and about 1.1 [7] times the Sun's radius. It is radiating 3.6 [8] times the Sun's luminosity from its photosphere at an effective temperature of 6,822 K. [6]
In Chinese, 右更 (Yòu Gèng), meaning Official in Charge of the Pasturing, refers to an asterism consisting of ρ Piscium, η Piscium, π Piscium, ο Piscium and 104 Piscium. Consequently, the Chinese name for ρ Piscium itself is 右更一 (Yòu Gèng yī, English: the First Star of Official in Charge of the Pasturing.) [15]
{{
cite web}}
: CS1 maint: postscript (
link)