18177-1652 BU  463

 
 
18H 17M 41.23S -16 51' 24.5" P.A. 102 SEP 2 MAG 10.04,10.54 SP B7II
 
 
Coord 2000
18177-1652
Discov num
BU  463
Comp
Coord arcsec 2000
18 17 41.23 -16 51 24.5
Date first
1888
Date last
2005
Obs
10
Pa first
104
Pa last
102
P.A. Now (θ)
102°
Sep first
2.2
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
10.04
Mag sec
10.54
delta mag (ΔM)
0.5
Spectral class
B7II (blue-white)
Pri motion ra
-007
Sec motion ra
Pri motion dec
+004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
Tycho2
6265-00007-1
HD
167839
last precise pa
102.3
last precise sep
2.04