17377+7102 HEI 863AB

 
 
17h 37m 41.73s +71 01' 50.5" P.A. 8 sep 4.2 mag 11.81,12.80
 
 
Coord 2000
17377+7102
Discov num
HEI 863
Comp
AB
Coord arcsec 2000
17 37 41.73 +71 01 50.5
Date first
1990
Date last
2014
Obs
3
Pa first
8
Pa last
8
P.A. Now (θ)
Sep first
3.8
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
11.81
Mag sec
12.80
delta mag (ΔM)
0.99
Spectral class
Pri motion ra
+002
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17377+7102 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17377+7102 HEI 863 AB 1990 2014 3 8 4.2 11.81 12.80 0.99 <===
Show 17377+7102 HEI 863 AC 1990 2014 3 83 4.8 11.81 12.30 0.49
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
8.4
Precise sep
4.19
Constellation
Draco
Tycho2
4432-00955-1
last precise pa
8.4
last precise sep
4.19
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17377+7102 HEI 863 AB 1999 2 8 3.9 11.81 12.80 D 173741.73+710150.5
17377+7102 HEI 863 AB 2014 3 8 4.2 11.81 12.80 173741.73+710150.5

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