15318+4054 KZA 97 AB,D

 
 
15h 31m 46.99s +40° 53' 57.7" P.A. 319.00 sep 117.8 mag 5.01,14.19 Sp A5V dist. 119.05 pc (388.34 l.y.)
 
 
Coord 2000 15318+4054 Discov num KZA  97 Comp AB,D Coord arcsec 2000 15 31 46.99 +40 53 57.7
Date first 1984 Date last 2020 Obs 7
Pa first 320 Pa last 318.6 P.A. Now (θ) 318.6°
Sep first 121.1 Sep last 117.8 Sep. Now (ρ) 117.8"
Mag pri 5.01 Mag sec 14.19 delta mag (ΔM) 9.18 Spectral class A5V (white)
Pri motion ra -014 Sec motion ra -001
Pri motion dec -013 Sec motion dec -022
Notes N (See Notes)
rPM=0.718
Nature of this double is uncertain.
 
 
15318+4054 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 45590 15 31 47 +40 53 58 A 1634 AB 2015 59 212 0.1 5.80 5.80 0.00 Y
Show Nu2 Boo 45590 15 31 47 +40 53 58 BU 1450 AB,C 2020 8 89 93.8 5.01 13.94 8.93
Show 45590 15 31 47 +40 53 58 KZA 97 AB,D 2020 7 319 117.8 5.01 14.19 9.18 <===
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Bootes SAO 45590 HIP 76041 Tycho2 3055-02340-1
Gaia DR2 1389871281210807040 HD 138629 HR 5774 GC 20883
ADS 9688 BD BD+41 2611 Bayer Nu 2 Bootis Bayer name Nu2 Boo
Distance 119.05 Distance ly 388.34 Bayer greek ν2 Boo