18203+2104 HDS2592

 
 
18H 20M 18.19S +21 04' 25.0" P.A. 184 SEP 0.5 MAG 7.80,11.36 SP B9 DIST. 418.41 PC (1364.85 L.Y.)
 
 
Coord 2000
18203+2104
Discov num
HDS2592
Comp
Coord arcsec 2000
18 20 18.19 +21 04 25.0
Date first
1991
Date last
2008
Obs
2
Pa first
185
Pa last
184
P.A. Now (θ)
184°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
7.80
Mag sec
11.36
delta mag (ΔM)
3.56
Spectral class
B9 (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
85939
HIP
89862
Tycho2
1580-01706-1
HD
168696
BD
BD+21 3388
Distance
418.41
Distance ly
1364.85
last precise pa
184.1
last precise sep
0.468