01057+2128 STF 88 AB (Psi1 Psc)

 
 
01h 05m 40.93s +21° 28' 23.6" P.A. 159.00 sep 29.9 mag 5.27,5.45 Sp B9.5V+A0V dist. 84.32 pc (275.05 l.y.)
 
 
Coord 2000 01057+2128 Discov num STF  88 Comp AB Coord arcsec 2000 01 05 40.93 +21 28 23.6
Date first 1755 Date last 2020 Obs 166
Pa first 156 Pa last 158.7 P.A. Now (θ) 158.7°
Sep first 30.4 Sep last 29.88 Sep. Now (ρ) 29.88"
Mag pri 5.27 Mag sec 5.45 delta mag (ΔM) 0.18 Spectral class B9.5V+A0V (blue-white/white)
Pri motion ra +044 Sec motion ra +054
Pri motion dec -014 Sec motion dec -013
Notes N Z V (See Notes, Parallax indicates components are physical, Proper motion indicates physical)
rPM=0.181 (< 0.3, Physical double)
This double is physical.
 
 
01057+2128 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 74482 01 05 41 +21 28 24 YR 6 Aa,Ab 2017 21 312 0.1 5.70 6.60 0.90 Y
Show Psi1 Psc 74482 01 05 41 +21 28 24 STF 88 AB 2020 166 159 29.9 5.27 5.45 0.18 <===
Show 74482 01 05 41 +21 28 24 STF 88 AC 2017 15 124 90.4 5.27 10.71 5.44
Show 74483 01 05 42 +21 27 56 STF 88 BC 2017 18 109 68.5 5.45 10.71 5.26
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Psi1 Psc Var name NSV397 Psc Constellation Pisces SAO 74482
HIP 5131 Tycho2 1202-02124-1 Gaia DR2 2790497534190737152 HD 6456
HR 310 GC 1309 ADS 899 BD BD+20 156
Bayer Psi 1 Piscium Bayer name Psi1 Psc Flamsteed 74 Piscium Flamsteed name 74 Psc
Distance 84.32 Distance ly 275.05 Bayer greek ψ1 Psc