15021-2017 HLD  22AB

 
 
15h 02m 08.94s -20 16' 38.8" P.A. 7.00 sep 2.0 mag 9.19,10.21 Sp F7V
 
 
Coord 2000
15021-2017
Discov num
HLD  22
Comp
AB
Coord arcsec 2000
15 02 08.94 -20 16 38.8
Date first
1881
Date last
2016
Obs
16
Pa first
0
Pa last
7
P.A. Now (θ)
Sep first
2.2
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
9.19
Mag sec
10.21
delta mag (ΔM)
1.02
Spectral class
F7V (yellow-white)
Pri motion ra
-008
Sec motion ra
-008
Pri motion dec
-021
Sec motion dec
-021
Notes
Nature of this double is uncertain.
 
 
15021-2017 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15021-2017 HLD 22 AB 1881 2016 16 7 2.0 9.19 10.21 1.02 <===
Show 15021-2017 HLD 22 AC 1909 2020 6 313 49.1 9.19 12.96 3.77
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
6.7
Precise sep
1.952
Constellation
Libra
Tycho2
6176-00762-1
Gaia DR2
6232691514428520448
HD
132896
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15021-2017 HLD 22 AB 2000 15 6 1.9 9.19 10.21 F7V 150208.94-201638.8

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