15589-2607 BU  622AB (Pi Sco)

 
 
15h 58m 51.12s -26 06' 50.6" P.A. 129 sep 50.4 mag 2.89,11.90 Sp B1V+B2V dist. 179.53 pc (585.63 l.y.)
 
 
Coord 2000
15589-2607
Discov num
BU  622
Comp
AB
Coord arcsec 2000
15 58 51.12 -26 06 50.6
Date first
1878
Date last
1999
Obs
9
Pa first
133
Pa last
129
P.A. Now (θ)
129°
Sep first
50.0
Sep last
50.4
Sep. Now (ρ)
50.4"
Mag pri
2.89
Mag sec
11.90
delta mag (ΔM)
9.01
Spectral class
B1V+B2V (blue-white/blue-white)
Pri motion ra
-011
Sec motion ra
+007
Pri motion dec
-027
Sec motion dec
-004
Notes
N (See Notes)
rPM=1.002
This double is not physical.
 
 
15589-2607 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 183987 15589-2607 SHT 60 Aa,Ab 2000 2000 1 244 2.0 5.10 13.40 8.30
Show Pi Sco 183987 15589-2607 BU 622 AB 1878 1999 9 129 50.4 2.89 11.90 9.01 <===
Show 15589-2607 KOH 61 Ba,Bb 1994 1994 2 331 2.9 10.70 12.10 1.40
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
128.7
Precise sep
50.352
Name
Pi Sco
Constellation
Scorpius
SAO
183987
HIP
78265
HD
143018
HR
5944
GC
21447
CD
CD-2511228
CP
CP-25 5705
Bayer
Pi Scorpii
Bayer name
Pi Sco
Flamsteed
6 Scorpii
Flamsteed name
6 Sco
Distance
179.53
Distance ly
585.63
last precise pa
128.7
last precise sep
50.352
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15589-2607 BU 622 AB 1998 8 128 49.9 2.89 11.90 B1V+B2V N D 155851.12-260650.6
15589-2607 BU 622 AB 1999 9 129 50.4 2.89 11.90 B1V B2V N D 155851.12-260650.6

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