15598+1723 STF 1993 AB (HD 143456)

 
 
15h 59m 46.92s +17° 22' 34.7" P.A. 43.00 sep 20.1 mag 8.59,8.88 Sp A0
 
 
Coord 2000 15598+1723 Discov num STF1993 Comp AB Coord arcsec 2000 15 59 46.92 +17 22 34.7
Date first 1783 Date last 2018 Obs 84
Pa first 38 Pa last 42.7 P.A. Now (θ) 42.7°
Sep first 37.9 Sep last 20.136 Sep. Now (ρ) 20.136"
Mag pri 8.59 Mag sec 8.88 delta mag (ΔM) 0.29 Spectral class A0 (white)
Pri motion ra +006 Sec motion ra -028
Pri motion dec +002 Sec motion dec -065
Notes N L (See Notes, Linear solution)
rPM=1.062
This double is not physical.
 
 
15598+1723 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 143456 101859 15 59 47 +17 22 35 STF 1993 AB 2018 84 43 20.1 8.59 8.88 0.29 <===
Show 15 59 47 +17 22 35 STF 1993 AC 2017 15 179 239.3 8.59 10.03 1.44
Show 15 59 47 +17 18 35 STF 1994 CD 2017 16 337 17.1 10.03 12.48 2.45
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 143456 Constellation Serpens SAO 101859 Tycho2 1496-00509-1
Gaia DR2 1199487578688261760 HD 143456 GC 21497