02493+1728 STF 311 AB (Pi Ari)

 
 
02h 49m 17.55s +17° 27' 51.5" P.A. 118.00 sep 3.2 mag 5.32,7.95 Sp B6V dist. 239.23 pc (780.37 l.y.)
 
 
Coord 2000 02493+1728 Discov num STF 311 Comp AB Coord arcsec 2000 02 49 17.55 +17 27 51.5
Date first 1821 Date last 2018 Obs 82
Pa first 124 Pa last 118.2 P.A. Now (θ) 118.2°
Sep first 3.1 Sep last 3.238 Sep. Now (ρ) 3.238"
Mag pri 5.32 Mag sec 7.95 delta mag (ΔM) 2.63 Spectral class B6V (blue-white)
Pri motion ra +004 Sec motion ra +004
Pri motion dec -011 Sec motion dec -015
Notes N (See Notes)
rPM=0.258 (< 0.3, Physical double)
This double is physical.
 
 
02493+1728 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 93127 02 49 18 +17 27 52 OCC 9077 Aa,Ab 1993 0 -1 0.0 5.32
Show Pi Ari 93127 02 49 18 +17 27 52 STF 311 AB 2018 82 118 3.2 5.32 7.95 2.63 <===
Show 93127 02 49 18 +17 27 52 STF 311 AC 2018 48 113 25.5 5.32 10.72 5.40
Show 93127 02 49 18 +17 27 52 ARN 31 AD 2018 12 134 221.7 5.32 10.49 5.17
Show 93127 02 49 18 +17 27 52 TOB 364 AE 1997 1 184 14.2 5.32 14.00 8.68
Show 93127 02 49 18 +17 27 52 TOB 364 AF 1997 1 17 17.5 5.32 15.00 9.68
Show 02 49 18 +17 27 50 STF 311 BC 2017 30 110 23.8 7.95 10.72 2.77
Septuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Pi Ari Var name NSV944 Ari Constellation Aries SAO 93127
HIP 13165 Tycho2 1223-01987-1 Gaia DR2 83369717557815296 HD 17543
HR 836 GC 3378 ADS 2151 BD BD+16 355
Bayer Pi Arietis Bayer name Pi Ari Flamsteed 42 Arietis Flamsteed name 42 Ari
Distance 239.23 Distance ly 780.37 Bayer greek π Ari