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 dist. 228.83 pc (746.44 l.y.)
 
 
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
rPM=0.181 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
318.6
Precise sep
3.64
Constellation
Draco
SAO
31216
HIP
92556
Tycho2
3552-00978-1
HD
234729
BD
BD+51 2441
Distance
228.83
Distance ly
746.44
last precise pa
318.6
last precise sep
3.64
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18517+5116 ES 788 1993 7 319 3.6 9.41 11.99 G5 185139.23+511550.7

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