17598+5039 COU2390

 
 
17h 59m 50.45s +50 39' 10.0" P.A. 185 sep 0.1 mag 10.54,9.66 Sp K0 dist. 222.22 pc (724.88 l.y.)
 
 
Coord 2000
17598+5039
Discov num
COU2390
Comp
Coord arcsec 2000
17 59 50.45 +50 39 10.0
Date first
1987
Date last
2011
Obs
9
Pa first
102
Pa last
185
P.A. Now (θ)
185°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
10.54
Mag sec
9.66
delta mag (ΔM)
0.88
Spectral class
K0 (yellow-orange)
Pri motion ra
-023
Sec motion ra
Pri motion dec
+097
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
185.1
Precise sep
0.095
Constellation
Draco
SAO
30677
HIP
88119
Tycho2
3523-00055-1
HD
234530
BD
BD+50 2501
Distance
222.22
Distance ly
724.88
last precise pa
185.1
last precise sep
0.095
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17598+5039 COU2390 1995 6 101 0.1 10.54 9.66 K0 175950.45+503910.0
17598+5039 COU2390 2009 7 198 0.1 10.54 9.66 K0 D 175950.45+503910.0
17598+5039 COU2390 2011 9 185 0.1 10.54 9.66 K0 175950.45+503910.0

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