15500-0355 RST4553AC

 
 
15h 49m 57.68s -03 55' 15.7" P.A. 310 sep 8.1 mag 6.90,13.00 Sp B9 dist. 116.14 pc (378.85 l.y.)
 
 
Coord 2000
15500-0355
Discov num
RST4553
Comp
AC
Coord arcsec 2000
15 49 57.68 -03 55 15.7
Date first
1996
Date last
1999
Obs
2
Pa first
314
Pa last
310
P.A. Now (θ)
310°
Sep first
8.0
Sep last
8.1
Sep. Now (ρ)
8.1"
Mag pri
6.90
Mag sec
13.00
delta mag (ΔM)
6.1
Spectral class
B9 (blue-white)
Pri motion ra
-032
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
15500-0355 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15500-0355 RST4553 AB 1938 2011 5 314 7.6 6.90 12.50 5.60
Show 15500-0355 RST4553 AC 1996 1999 2 310 8.1 6.90 13.00 6.10 <===
Show 15500-0355 FGL 3 AD 2001 2001 1 300 1.5 6.90
Show 15500-0355 RST4553 BC 1938 1943 2 305 1.5 12.50 13.00 0.50
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
310.4
Precise sep
8.05
Constellation
Libra
HIP
77542
Tycho2
5026-00042-1
HD
141569
BD
BD-03 3833
Distance
116.14
Distance ly
378.85
last precise pa
310.4
last precise sep
8.05
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15500-0355 RST4553 AC 1996 1 314 8.0 6.90 13.00 B9 D 154957.68-035515.7
15500-0355 RST4553 AC 1999 2 310 8.1 6.90 13.00 B9 N 154957.68-035515.7

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