17094-3141 HJ 4921AB

 
 
17h 09m 23.97s -31 40' 47.1" P.A. 146 sep 8.7 mag 8.89,9.51 Sp A0/1V
 
 
Coord 2000
17094-3141
Discov num
HJ 4921
Comp
AB
Coord arcsec 2000
17 09 23.97 -31 40 47.1
Date first
1834
Date last
1999
Obs
16
Pa first
139
Pa last
146
P.A. Now (θ)
146°
Sep first
4.0
Sep last
8.7
Sep. Now (ρ)
8.7"
Mag pri
8.89
Mag sec
9.51
delta mag (ΔM)
0.62
Spectral class
A0/1V (white)
Pri motion ra
+000
Sec motion ra
+001
Pri motion dec
-008
Sec motion dec
-011
Notes
rPM=0.286 (< 0.3, Physical double)
This double is physical.
 
 
17094-3141 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17094-3141 VOU 37 Aa,Ab 1937 1960 3 40 0.2 9.60 9.80 0.20
Show 17094-3141 HJ 4921 AB 1834 1999 16 146 8.7 8.89 9.51 0.62 <===
Show 17094-3141 DAW 215 AC 1919 1999 3 90 20.5 8.89 13.20 4.31
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
146.1
Precise sep
8.735
Constellation
Scorpius
Tycho2
7361-00371-1
HD
154871
last precise pa
146.1
last precise sep
8.735
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17094-3141 HJ 4921 AB 1998 15 146 8.7 8.89 9.51 A0/1V D 170923.97-314047.1
17094-3141 HJ 4921 AB 1999 16 146 8.7 8.89 9.51 A0/1V D 170923.97-314047.1

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