20289+5939 HJ 2978

 
 
20h 28m 56.14s +59 38' 50.1" P.A. 277 sep 14.1 mag 10.29,11.07
 
 
Coord 2000
20289+5939
Discov num
HJ 2978
Comp
Coord arcsec 2000
20 28 56.14 +59 38 50.1
Date first
1831
Date last
2015
Obs
16
Pa first
275
Pa last
277
P.A. Now (θ)
277°
Sep first
10.0
Sep last
14.1
Sep. Now (ρ)
14.1"
Mag pri
10.29
Mag sec
11.07
delta mag (ΔM)
0.78
Spectral class
Pri motion ra
+010
Sec motion ra
+011
Pri motion dec
+019
Sec motion dec
+020
Notes
rPM=0.062 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
277.1
Precise sep
14.109
Constellation
Cygnus
Tycho2
3962-01342-1
Gaia DR2
83677996416
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20289+5939 HJ 2978 2002 9 276 14.2 10.29 11.07 D 202856.14+593850.1
20289+5939 HJ 2978 2003 10 277 14.1 10.29 11.07 D 202856.14+593850.1
20289+5939 HJ 2978 2010 11 277 14.0 10.29 11.07 202856.14+593850.1
20289+5939 HJ 2978 2015 12 277 14.1 10.29 11.07 202856.14+593850.1

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