Rho Piscium

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Rho Piscium
Diagram showing star positions and boundaries of the Pisces constellation and its surroundings
Cercle rouge 100%.svg

Location of ρ Piscium (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pisces
Right ascension 01h 26m 15.28s
Declination +19° 10' 20.4"
Apparent magnitude (V) +5.35
Distance 85 ly
(26 pc)
Spectral type F2V:var
Other designations
ρ Piscium, ρ Psc, Rho Psc, 93 Piscium, BD+18°187, GC 1733, HD 8723, HIP 6706, HR 413, PPM 117332, SAO 92436.

Rho Piscium (Rho Psc, ρ Piscium, ρ Psc) is a yellowish white F-type main sequence star with an apparent magnitude of +5.35. It is approximately 85 light years from Earth. The star's age is estimated to be 1.4 billion years but is certainly no less than 600 million years and no greater than 1.9 billion years.

Rho Piscium is moving through the Galaxy at a speed of 8.4 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,500 and 32,900 light years from the center of the Galaxy.[1]

Rho Piscium will come closest to the Sun 2.7 million years from now when it will brighten to magnitude 3.41 from a distance of 34 light years.[1]

Naming[edit]

In Chinese, 右更 (Yòu Gèng), meaning Official in Charge of the Pasturing, refers to an asterism consisting of refers to an asterism consisting of ρ Piscium, η Piscium, π Piscium, ο Piscium and 104 Piscium. Consequently, ρ Piscium itself is known as 右更一 (Yòu Gèng yī, English: the First Star of Official in Charge of the Pasturing.)[2]

References[edit]