18413+6311 ES 1839

 
 
18h 41m 19.44s +63 10' 55.0" P.A. 17 sep 4.5 mag 10.50,12.50
 
 
Coord 2000
18413+6311
Discov num
ES 1839
Comp
Coord arcsec 2000
18 41 19.44 +63 10 55.0
Date first
1920
Date last
2015
Obs
4
Pa first
49
Pa last
17
P.A. Now (θ)
17°
Sep first
5.3
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
10.50
Mag sec
12.50
delta mag (ΔM)
2
Spectral class
Pri motion ra
+020
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
16.5
Precise sep
4.481
Constellation
Draco
Tycho2
4219-02003-1
Gaia DR2
78982338432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18413+6311 ES 1839 1999 3 22 4.4 10.50 12.50 D 184119.44+631055.0
18413+6311 ES 1839 2010 4 19 4.1 10.50 12.50 184119.44+631055.0
18413+6311 ES 1839 2015 4 17 4.5 10.50 12.50 184119.44+631055.0

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