17500+5103 ES  779

 
 
17h 50m 01.78s +51 03' 08.2" P.A. 342 sep 9 mag 10.40,13.60
 
 
Coord 2000
17500+5103
Discov num
ES  779
Comp
Coord arcsec 2000
17 50 01.78 +51 03 08.2
Date first
1909
Date last
2010
Obs
6
Pa first
342
Pa last
342
P.A. Now (θ)
342°
Sep first
9.1
Sep last
9.0
Sep. Now (ρ)
9"
Mag pri
10.40
Mag sec
13.60
delta mag (ΔM)
3.2
Spectral class
Pri motion ra
-002
Sec motion ra
-008
Pri motion dec
+012
Sec motion dec
+023
Notes
rPM=0.515
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
342
Precise sep
9.03
Constellation
Draco
Tycho2
3523-00487-1
last precise pa
342
last precise sep
9.03
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17500+5103 ES 779 2000 3 342 9.5 10.40 13.60 D 175001.78+510308.2
17500+5103 ES 779 2003 4 342 9.4 10.40 13.60 D 175001.78+510308.2
17500+5103 ES 779 2010 5 342 8.8 10.40 13.60 175001.78+510308.2

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