20259+3758 SEI1123

 
 
20h 25m 56.81s +37 57' 27.5" P.A. 138.00 sep 27.6 mag 11.49,12.09
 
 
Coord 2000
20259+3758
Discov num
SEI1123
Comp
Coord arcsec 2000
20 25 56.81 +37 57 27.5
Date first
1895
Date last
2015
Obs
12
Pa first
139
Pa last
138
P.A. Now (θ)
138°
Sep first
27.8
Sep last
27.6
Sep. Now (ρ)
27.6"
Mag pri
11.49
Mag sec
12.09
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
+008
Sec motion ra
+006
Pri motion dec
+004
Sec motion dec
+003
Notes
rPM=0.25 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
138.3
Precise sep
27.577
Constellation
Cygnus
Tycho2
3152-00794-1
Gaia DR2
47087541504
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20259+3758 SEI1123 1998 5 138 27.6 11.49 11.50 D 202556.81+375727.5
20259+3758 SEI1123 2002 6 138 27.6 11.49 11.50 D 202556.81+375727.5
20259+3758 SEI1123 2010 7 138 28.0 11.49 12.09 202556.81+375727.5
20259+3758 SEI1123 2015 8 138 27.6 11.49 12.09 202556.81+375727.5

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