17083+5051 ES   77AB

 
 
17h 08m 17.08s +50 50' 32.0" P.A. 277 sep 18.6 mag 6.45,10.96 Sp A1V dist. 191.57 pc (624.9 l.y.)
 
 
Coord 2000
17083+5051
Discov num
ES   77
Comp
AB
Coord arcsec 2000
17 08 17.08 +50 50 32.0
Date first
1901
Date last
2008
Obs
16
Pa first
274
Pa last
277
P.A. Now (θ)
277°
Sep first
17.0
Sep last
18.6
Sep. Now (ρ)
18.6"
Mag pri
6.45
Mag sec
10.96
delta mag (ΔM)
4.51
Spectral class
A1V (white)
Pri motion ra
-008
Sec motion ra
-019
Pri motion dec
+026
Sec motion dec
+044
Notes
rPM=0.44
Nature of this double is uncertain.
 
 
17083+5051 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30262 17083+5051 CHR 60 Aa,Ab 1985 2007 3 10 0.2 6.46
Show 30262 17083+5051 ES 77 AB 1901 2008 16 277 18.6 6.45 10.96 4.51 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
276.7
Precise sep
18.6
Constellation
Draco
SAO
30262
HIP
83857
Tycho2
3507-00022-1
HD
155328
HR
6383
BD
BD+51 2178
Distance
191.57
Distance ly
624.9
last precise pa
276.7
last precise sep
18.6
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17083+5051 ES 77 AB 1998 14 278 18.2 6.45 10.96 D 170817.08+505032.0
17083+5051 ES 77 AB 2008 15 277 18.6 6.45 10.96 D 170817.08+505032.0

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