18110+3124 ES  345

 
 
18h 10m 58.12s +31 24' 52.9" P.A. 15 sep 2.7 mag 12.13,12.30
 
 
Coord 2000
18110+3124
Discov num
ES  345
Comp
Coord arcsec 2000
18 10 58.12 +31 24 52.9
Date first
1906
Date last
2008
Obs
9
Pa first
19
Pa last
15
P.A. Now (θ)
15°
Sep first
2.5
Sep last
2.7
Sep. Now (ρ)
2.7"
Mag pri
12.13
Mag sec
12.30
delta mag (ΔM)
0.17
Spectral class
Pri motion ra
+009
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
14.7
Precise sep
2.74
Constellation
Hercules
Tycho2
2622-01357-1
last precise pa
14.7
last precise sep
2.74
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18110+3124 ES 345 1997 8 15 2.7 12.13 12.30 181058.12+312452.9
18110+3124 ES 345 2008 9 15 2.7 12.13 12.30 181058.12+312452.9

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