17374+5040 ES 2661BC

 
 
17H 37M 31.07S +50 39' 54.2" P.A. 18 SEP 14.9 MAG 9.84,12.80
 
 
Coord 2000
17374+5040
Discov num
ES 2661
Comp
BC
Coord arcsec 2000
17 37 31.07 +50 39 54.2
Date first
1909
Date last
2015
Obs
9
Pa first
28
Pa last
18
P.A. Now (θ)
18°
Sep first
13.5
Sep last
14.9
Sep. Now (ρ)
14.9"
Mag pri
9.84
Mag sec
12.80
delta mag (ΔM)
2.96
Spectral class
Pri motion ra
+011
Sec motion ra
Pri motion dec
-022
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17374+5040 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30486 17374+5040 ES 2661 AB 1902 2015 12 102 58.3 8.46 9.84 1.38
Show 17374+5040 ES 2661 BC 1909 2015 9 18 14.9 9.84 12.80 2.96 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
Tycho2
3522-01544-1
last precise pa
17.6
last precise sep
14.92