02493+1728 STF 311 AC

 
 
02h 49m 17.55s +17° 27' 51.5" P.A. 113.00 sep 25.5 mag 5.32,10.72 Sp B6V dist. 239.23 pc (780.37 l.y.)
 
 
Coord 2000 02493+1728 Discov num STF 311 Comp AC Coord arcsec 2000 02 49 17.55 +17 27 51.5
Date first 1782 Date last 2018 Obs 48
Pa first 109 Pa last 112.5 P.A. Now (θ) 112.5°
Sep first 25.5 Sep last 25.5 Sep. Now (ρ) 25.5"
Mag pri 5.32 Mag sec 10.72 delta mag (ΔM) 5.4 Spectral class B6V (blue-white)
Pri motion ra +004 Sec motion ra +018
Pri motion dec -015 Sec motion dec -042
Notes N (See Notes)
rPM=0.666
Nature of this double is uncertain.
 
 
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
 
 
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