18164-1858 B  1885

 
 
18H 16M 25.64S -18 58' 21.5" P.A. 257 SEP 2.5 MAG 8.90,11.90 SP B7IB
 
 
Coord 2000
18164-1858
Discov num
B  1885
Comp
Coord arcsec 2000
18 16 25.64 -18 58 21.5
Date first
1930
Date last
2005
Obs
2
Pa first
257
Pa last
257
P.A. Now (θ)
257°
Sep first
2.5
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
8.90
Mag sec
11.90
delta mag (ΔM)
3
Spectral class
B7Ib (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
SAO
161245
Tycho2
6273-00296-1
HD
167520
last precise pa
256.7
last precise sep
2.51