Alrisha

from Wikipedia, the free encyclopedia
Double star
α Piscium / Alrischa
Observation
dates equinoxJ2000.0 , epoch : J2000.0
AladinLite
Constellation fishes
Right ascension 02 h 02 m 03 s
declination + 02 ° 45 ′ 49 ″
Apparent brightness  3.82 likes
Astrometry
Radial velocity (9 ± 2) km / s
parallax (23.5 ± 1.1) mas
distance  (151 ± 7) ly
((42.6 ± 1.9) pc )
Individual data
Names A; B.
Observation data:
Apparent brightness A. 4.33 likes
B. 5.23 mag
Typing:
Spectral class A. A0pSiSr
B. A3m
Other names
and catalog entries
Bayer name α Piscium
Flamsteed name 113 Piscium
Bonn survey BD + 2 ° 317
SAO catalog SAO 110291 [1]
Hipparcos catalog HIP 9487 [2]
Bright Star Catalog HR 596 HR 595
Henry Draper Catalog HD 12447 HD 12446
Tycho catalog TYC 40-1338-1 [3] TYC 40-1338-2 [4]
WDS catalog WDS J02020 + 0246
Further designations: Struve 202

Alrischa ( Arabic الرِشا ar-Rishā  'the rope'), also known as α Piscium (Alpha Piscium ), is a double star in the constellation Pisces . The main star has a brightness of +4.33 mag and has the spectral type A0pSiSr, while the companion has a brightness of +5.23 mag and belongs to the spectral class A3m. Its distance is about 150 light years .