15318+4054 BU 1450AB,C

 
 
15h 31m 46.99s +40 53' 57.7" P.A. 88 sep 93.5 mag 5.01,13.94 Sp A5V dist. 119.05 pc (388.34 l.y.)
 
 
Coord 2000
15318+4054
Discov num
BU 1450
Comp
AB,C
Coord arcsec 2000
15 31 46.99 +40 53 57.7
Date first
1913
Date last
2002
Obs
5
Pa first
89
Pa last
88
P.A. Now (θ)
88°
Sep first
91.6
Sep last
93.5
Sep. Now (ρ)
93.5"
Mag pri
5.01
Mag sec
13.94
delta mag (ΔM)
8.93
Spectral class
A5V (white)
Pri motion ra
-014
Sec motion ra
-016
Pri motion dec
-013
Sec motion dec
+000
Notes
N (See Notes)
rPM=0.688
Nature of this double is uncertain.
 
 
15318+4054 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Nu2 Boo 45590 15318+4054 A 1634 AB 1907 2010 55 315 0.0 5.80 5.80 0.00 Y
Show 45590 15318+4054 BU 1450 AB,C 1913 2002 5 88 93.5 5.01 13.94 8.93 <===
Show 45590 15318+4054 KZA 97 AB,D 1984 2002 3 319 119.0 5.01 14.19 9.18
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
88.1
Precise sep
93.499
Constellation
Bootes
SAO
45590
HIP
76041
Tycho2
3055-02340-1
HD
138629
HR
5774
GC
20883
BD
BD+41 2611
Bayer
Nu 2 Bootis
Bayer name
Nu2 Boo
Flamsteed
53 Bootis
Flamsteed name
53 Boo
Distance
119.05
Distance ly
388.34
last precise pa
88.1
last precise sep
93.499
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15318+4054 BU 1450 AB,C 1984 3 88 92.6 5.10 13.00 A5V N 153146.99+405357.7
15318+4054 BU 1450 AB,C 2002 4 88 93.5 5.10 13.00 A5V N 153146.99+405357.7

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