18205+2055 COU 202

 
 
18h 20m 27.81s +20 55' 08.0" P.A. 288 sep 0.2 mag 9.30,9.69 Sp A0 dist. 328.95 pc (1073.03 l.y.)
 
 
Coord 2000
18205+2055
Discov num
COU 202
Comp
Coord arcsec 2000
18 20 27.81 +20 55 08.0
Date first
1967
Date last
2008
Obs
19
Pa first
264
Pa last
288
P.A. Now (θ)
288°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.30
Mag sec
9.69
delta mag (ΔM)
0.39
Spectral class
A0 (white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
288.2
Precise sep
0.189
Constellation
Hercules
SAO
85946
HIP
89885
Tycho2
1580-02128-1
HD
168743
BD
BD+20 3741
Distance
328.95
Distance ly
1073.03
last precise pa
288.2
last precise sep
0.189
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18205+2055 COU 202 1992 17 274 0.2 9.30 9.69 A0 182027.81+205508.0
18205+2055 COU 202 2008 18 288 0.2 9.30 9.69 A0 182027.81+205508.0

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