15500-0355 RST4553AB

 
 
15h 49m 57.68s -03 55' 15.7" P.A. 312.00 sep 7.6 mag 6.90,12.50 Sp B9 dist. 116.14 pc (378.85 l.y.)
 
 
Coord 2000
15500-0355
Discov num
RST4553
Comp
AB
Coord arcsec 2000
15 49 57.68 -03 55 15.7
Date first
1938
Date last
2015
Obs
6
Pa first
311
Pa last
312
P.A. Now (θ)
312°
Sep first
7.5
Sep last
7.6
Sep. Now (ρ)
7.6"
Mag pri
6.90
Mag sec
12.50
delta mag (ΔM)
5.6
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 15 49 58 -03 55 16 RST 4553 AB 2015 6 312 7.6 6.90 12.50 5.60 <===
Show 15 49 58 -03 55 16 RST 4553 AC 1999 2 310 8.1 6.90 13.00 6.10
Show 15 49 58 -03 55 16 FGL 3 AD 2018 2 291 0.5 6.90
Show 15 49 57 -03 55 11 RST 4553 BC 2015 3 303 1.3 12.50 13.00 0.50
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
311.5
Precise sep
7.56
Constellation
Libra
HIP
77542
Tycho2
5026-00042-1
Gaia DR2
4399438153527026176
HD
141569
BD
BD-03 3833
Distance
116.14
Distance ly
378.85
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15500-0355 RST4553 AB 1999 3 310 8.1 6.90 12.50 B9 D 154957.76-035516.2
15500-0355 RST4553 AB 2011 5 314 7.6 6.90 12.50 B9 N 154957.68-035515.7
15500-0355 RST4553 AB 2015 6 312 7.6 6.90 12.50 B9 N 154957.68-035515.7

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