18517+5116 ES  788

 
 
18H 51M 39.23S +51 15' 50.7" P.A. 319 SEP 3.6 MAG 9.41,11.99 SP G5
 
 
Coord 2000
18517+5116
Discov num
ES  788
Comp
Coord arcsec 2000
18 51 39.23 +51 15 50.7
Date first
1909
Date last
1993
Obs
7
Pa first
317
Pa last
319
P.A. Now (θ)
319°
Sep first
3.1
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
9.41
Mag sec
11.99
delta mag (ΔM)
2.58
Spectral class
G5 (yellow)
Pri motion ra
+018
Sec motion ra
+016
Pri motion dec
+020
Sec motion dec
+025
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
Tycho2
3552-00978-1
HD
234729
last precise pa
318.6
last precise sep
3.64