18217+2356 COU 418

 
 
18H 21M 44.75S +23 55' 49.9" P.A. 262 SEP 0.2 MAG 9.63,9.89 SP F8 DIST. 740.74 PC (2416.29 L.Y.)
 
 
Coord 2000
18217+2356
Discov num
COU 418
Comp
Coord arcsec 2000
18 21 44.75 +23 55 49.9
Date first
1969
Date last
1996
Obs
14
Pa first
234
Pa last
262
P.A. Now (θ)
262°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.63
Mag sec
9.89
delta mag (ΔM)
0.26
Spectral class
F8 (yellow-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
+012
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
85968
HIP
89994
Tycho2
2093-01299-1
HD
169030
BD
BD+23 3312
Distance
740.74
Distance ly
2416.29
last precise pa
261.7
last precise sep
0.181