18177-1940 BU  246AB

 
 
18H 17M 39.98S -19 40' 19.9" P.A. 114 SEP 0.5 MAG 8.40,8.27 SP B0V DIST. 357.14 PC (1164.99 L.Y.)
 
 
Coord 2000
18177-1940
Discov num
BU  246
Comp
AB
Coord arcsec 2000
18 17 39.98 -19 40 19.9
Date first
1875
Date last
2016
Obs
32
Pa first
109
Pa last
114
P.A. Now (θ)
114°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
8.40
Mag sec
8.27
delta mag (ΔM)
0.13
Spectral class
B0V (blue-white)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
-002
Sec motion dec
-002
Notes
Nature of this double is uncertain.
 
 
18177-1940 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161273 18177-1940 BU 246 AB 1875 2016 32 114 0.5 8.40 8.27 0.13 <===
Show 161273 18177-1940 WSI 89 Ba,Bb 2008 2015 8 344 0.1 8.70 9.60 0.90
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
SAO
161273
HIP
89647
Tycho2
6273-00665-1
HD
167815
BD
BD-19 4953
Distance
357.14
Distance ly
1164.99
last precise pa
114.2
last precise sep
0.487