17511+5523 HO   71

 
 
17h 50m 58.05s +55 23' 20.6" P.A. 228 sep 3.8 mag 11.50,11.50
 
 
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
2017
Obs
18
Pa first
227
Pa last
228
P.A. Now (θ)
228°
Sep first
3.7
Sep last
3.8
Sep. Now (ρ)
3.8"
Mag pri
11.50
Mag sec
11.50
delta mag (ΔM)
0
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
227.7
Precise sep
3.805
Cdsa2 id
HO 71
Constellation
Draco
Ra deg
17.84945833333333
De deg
55.38905555555556
last precise pa
227.7
last precise sep
3.805
 
 
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
17511+5523 HO 71 2017 18 228 3.8 11.50 11.50 175058.05+552320.6

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