20423+7915 SKF1247

 
 
20h 42m 16.81s +79 15' 02.9" P.A. 338.00 sep 17.3 mag 10.90,11.41 Sp F8
 
 
Coord 2000
20423+7915
Discov num
SKF1247
Comp
Coord arcsec 2000
20 42 16.81 +79 15 02.9
Date first
1896
Date last
2015
Obs
14
Pa first
339
Pa last
338
P.A. Now (θ)
338°
Sep first
17.4
Sep last
17.3
Sep. Now (ρ)
17.3"
Mag pri
10.90
Mag sec
11.41
delta mag (ΔM)
0.51
Spectral class
F8 (yellow-white)
Pri motion ra
+006
Sec motion ra
+004
Pri motion dec
+026
Sec motion dec
+026
Notes
T (Parallax indicates physical)
rPM=0.075 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
338.4
Precise sep
17.26
Constellation
Cepheus
Tycho2
4594-01134-1
Gaia DR2
18752948480
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20423+7915 SKF1247 2010 6 339 17.3 10.80 11.40 F8 V 204216.81+791502.9
20423+7915 SKF1247 2015 9 339 17.3 10.90 11.41 F8 V 204216.81+791502.9

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