21137+3815 GUR  17

 
 
21h 13m 39.79s +38 15' 12.9" P.A. 105 sep 9.6 mag 10.19,13.50
 
 
Coord 2000
21137+3815
Discov num
GUR  17
Comp
Coord arcsec 2000
21 13 39.79 +38 15 12.9
Date first
1998
Date last
2015
Obs
4
Pa first
104
Pa last
105
P.A. Now (θ)
105°
Sep first
9.8
Sep last
9.6
Sep. Now (ρ)
9.6"
Mag pri
10.19
Mag sec
13.50
delta mag (ΔM)
3.31
Spectral class
Pri motion ra
+001
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
105
Precise sep
9.645
Constellation
Cygnus
SAO
71083
Tycho2
3169-01553-1
last precise pa
105
last precise sep
9.645
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21137+3815 GUR 17 2012 3 106 9.7 10.19 13.50 211339.79+381512.9
21137+3815 GUR 17 2015 4 105 9.6 10.19 13.50 211339.79+381512.9

If you need more information about this double, apply for a data request form to the WDS.