17577+2815 HO  424

 
 
17h 57m 44.09s +28 15' 12.8" P.A. 204 sep 1.4 mag 8.45,10.73 Sp G8III dist. 309.6 pc (1009.92 l.y.)
 
 
Coord 2000
17577+2815
Discov num
HO  424
Comp
Coord arcsec 2000
17 57 44.09 +28 15 12.8
Date first
1890
Date last
2015
Obs
19
Pa first
203
Pa last
204
P.A. Now (θ)
204°
Sep first
1.0
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
8.45
Mag sec
10.73
delta mag (ΔM)
2.28
Spectral class
G8III (yellow)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
-017
Sec motion dec
-017
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
203.7
Precise sep
1.43
Constellation
Hercules
SAO
85588
HIP
87930
Tycho2
2102-00530-1
HD
163969
BD
BD+28 2873
Distance
309.6
Distance ly
1009.92
last precise pa
203.7
last precise sep
1.43
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17577+2815 HO 424 1991 16 204 1.3 8.45 10.73 G8III D 175744.09+281512.8
17577+2815 HO 424 2009 17 203 1.4 8.45 10.73 G8III D 175744.09+281512.8
17577+2815 HO 424 2015 19 204 1.4 8.45 10.73 G8III 175744.09+281512.8

If you need more information about this double, apply for a data request form to the WDS.