20397+6325 DOB  15

 
 
20h 39m 46.03s +63 25' 49.2" P.A. 91 sep 3.1 mag 9.30,9.50
 
 
Coord 2000
20397+6325
Discov num
DOB  15
Comp
Coord arcsec 2000
20 39 46.03 +63 25 49.2
Date first
1913
Date last
2017
Obs
12
Pa first
87
Pa last
91
P.A. Now (θ)
91°
Sep first
2.7
Sep last
3.1
Sep. Now (ρ)
3.1"
Mag pri
9.30
Mag sec
9.50
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-019
Sec motion ra
+029
Pri motion dec
+004
Sec motion dec
+003
Notes
rPM=1.647
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
91
Precise sep
3.13
Constellation
Cepheus
SAO
18974
Tycho2
4250-00209-1
Gaia DR2
69772958080
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20397+6325 DOB 15 2002 5 89 3.1 9.30 9.50 D 203946.03+632549.2
20397+6325 DOB 15 2008 6 78 2.0 9.30 9.50 D 203946.03+632549.2
20397+6325 DOB 15 2012 8 89 3.1 9.30 9.50 203946.03+632549.2
20397+6325 DOB 15 2016 9 90 3.1 9.30 9.50 203946.03+632549.2
20397+6325 DOB 15 2017 11 91 3.1 9.30 9.50 203946.03+632549.2

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