15031-4237 WIS 279AB

 
 
15h 03m 08.66s -42 36' 53.4" P.A. 108.00 sep 388.3 mag 9.99,12.74 Sp K3V dist. 44.54 pc (145.29 l.y.)
 
 
Coord 2000
15031-4237
Discov num
WIS 279
Comp
AB
Coord arcsec 2000
15 03 08.66 -42 36 53.4
Date first
1998
Date last
2010
Obs
4
Pa first
108
Pa last
108
P.A. Now (θ)
108°
Sep first
388.2
Sep last
388.3
Sep. Now (ρ)
388.3"
Mag pri
9.99
Mag sec
12.74
delta mag (ΔM)
2.75
Spectral class
K3V (yellow-orange)
Pri motion ra
-265
Sec motion ra
-219
Pri motion dec
-277
Sec motion dec
-303
Notes
V (Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.138 (< 0.3, Physical double)
This double is physical.
 
 
15031-4237 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15031-4237 WIS 279 Aa,Ab 2019 2019 2 105 0.2 10.10 12.10 2.00
Show 15031-4237 WIS 279 AB 1998 2010 4 108 388.3 9.99 12.74 2.75 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
107.5
Precise sep
388.311
Constellation
Lupus
HIP
73639
Tycho2
7829-00071-1
HD
132920
CD
CD-42 9940
CP
CP-42 6883
Distance
44.54
Distance ly
145.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15031-4237 WIS 279 AB 2010 4 108 388.3 9.99 12.74 K3V V 150308.66-423653.4

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