18182+5050 ES  647

 
 
18h 18m 15.83s +50 50' 27.1" P.A. 290 sep 2.3 mag 9.60,11.90
 
 
Coord 2000
18182+5050
Discov num
ES  647
Comp
Coord arcsec 2000
18 18 15.83 +50 50 27.1
Date first
1908
Date last
2002
Obs
3
Pa first
293
Pa last
290
P.A. Now (θ)
290°
Sep first
2.8
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
9.60
Mag sec
11.90
delta mag (ΔM)
2.3
Spectral class
Pri motion ra
+027
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
290.3
Precise sep
2.27
Constellation
Draco
Tycho2
3537-00247-1
last precise pa
290.3
last precise sep
2.27
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18182+5050 ES 647 2002 3 290 2.3 9.60 11.90 181815.83+505027.1

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