15569-3358 PZ    4 (Xi1 Lup)

 
 
15h 56m 53.49s -33 57' 58.0" P.A. 50 sep 10.3 mag 5.09,5.56 Sp A3V+B9V dist. 42.37 pc (138.21 l.y.)
 
 
Coord 2000
15569-3358
Discov num
PZ    4
Comp
Coord arcsec 2000
15 56 53.49 -33 57 58.0
Date first
1826
Date last
2016
Obs
46
Pa first
53
Pa last
50
P.A. Now (θ)
50°
Sep first
11.7
Sep last
10.3
Sep. Now (ρ)
10.3"
Mag pri
5.09
Mag sec
5.56
delta mag (ΔM)
0.47
Spectral class
A3V+B9V (white/blue-white)
Pri motion ra
+024
Sec motion ra
+020
Pri motion dec
-046
Sec motion dec
-050
Notes
N Z (See Notes, Parallax indicates components are physical)
rPM=0.105 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
49.5
Precise sep
10.32
Name
Xi1 Lup
Constellation
Lupus
SAO
207144
HIP
78105
Tycho2
7337-01461-1
HD
142629
HR
5925
GC
21395
CD
CD-3310826
Bayer
Xi 1 Lupi
Bayer name
Xi1 Lup
Distance
42.37
Distance ly
138.21
last precise pa
49.5
last precise sep
10.32
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15569-3358 PZ 4 2007 40 50 10.3 5.09 5.56 A3V B9V NZD 155653.49-335758.0
15569-3358 PZ 4 2010 41 47 10.6 5.09 5.56 A3V B9V NZD 155653.49-335758.0
15569-3358 PZ 4 2014 45 49 10.2 5.09 5.56 A3V B9V NZD 155653.49-335758.0
15569-3358 PZ 4 2016 46 50 10.3 5.09 5.56 A3V+B9V NZ 155653.49-335758.0

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