17511+5523 HO   71

 
 
17h 50m 58.05s +55 23' 20.6" P.A. 230 sep 4.1 mag 9.20,9.60
 
 
Coord 2000
17511+5523
Discov num
HO   71
Comp
Coord arcsec 2000
17 50 58.05 +55 23 20.6
Date first
1885
Date last
2015
Obs
17
Pa first
227
Pa last
230
P.A. Now (θ)
230°
Sep first
3.7
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
9.20
Mag sec
9.60
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
+015
Sec motion ra
-021
Pri motion dec
+015
Sec motion dec
+013
Notes
rPM=1.46
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
230.2
Precise sep
4.131
Constellation
Draco
last precise pa
230.2
last precise sep
4.131
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17511+5523 HO 71 2000 13 228 3.7 9.20 9.60 D 175057.76+552317.9
17511+5523 HO 71 2011 14 227 3.7 9.20 9.60 D 175057.76+552317.9
17511+5523 HO 71 2015 17 230 4.1 9.20 9.60 175057.76+552317.9

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