17555-3146 PRO 189

 
 
17H 55M 32.00S -31 46' 16.4" P.A. 220 SEP 4 MAG 12.50,13.00
 
 
Coord 2000
17555-3146
Discov num
PRO 189
Comp
Coord arcsec 2000
17 55 32.00 -31 46 16.4
Date first
1909
Date last
2000
Obs
4
Pa first
218
Pa last
220
P.A. Now (θ)
220°
Sep first
3.4
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
12.50
Mag sec
13.00
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+011
Sec motion ra
-013
Pri motion dec
-003
Sec motion dec
-026
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
Tycho2
7378-00750-1
HD
318616
last precise pa
220.2
last precise sep
3.98