19031-4543 R   317AB

 
 
19h 03m 05.28s -45 42' 42.1" P.A. 287 sep 1.7 mag 7.95,8.83 Sp B9III:
 
 
Coord 2000
19031-4543
Discov num
R   317
Comp
AB
Coord arcsec 2000
19 03 05.28 -45 42 42.1
Date first
1881
Date last
2016
Obs
14
Pa first
287
Pa last
287
P.A. Now (θ)
287°
Sep first
1.0
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
7.95
Mag sec
8.83
delta mag (ΔM)
0.88
Spectral class
B9III: (blue-white)
Pri motion ra
+001
Sec motion ra
+001
Pri motion dec
-015
Sec motion dec
-015
Notes
Nature of this double is uncertain.
 
 
19031-4543 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19031-4543 R 317 AB 1881 2016 14 287 1.7 7.95 8.83 0.88 <===
Show 19031-4543 HJ 5078 AC 1834 2016 17 212 18.6 7.95 8.83 0.88
Show 19031-4543 B 2873 CD 1935 1999 2 268 6.2 8.83 12.90 4.07
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
286.7
Precise sep
1.72
Cdsa2 id
R 317 AB
Constellation
Telescopium
Tycho2
8374-02986-1
Ra deg
19.051466666666666
De deg
-45.71169444444445
last precise pa
286.7
last precise sep
1.72
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19031-4543 R 317 AB 1991 13 284 1.5 7.95 8.83 B9III: 190305.28-454242.1
19031-4543 R 317 AB 2016 14 287 1.7 7.95 8.83 B9III: 190305.28-454242.1

If you need more information about this double, apply for a data request form to the WDS.