20520+4346 SKF2740BC

 
 
20h 51m 59.38s +43 45' 24.2" P.A. 192 sep 73.5 mag 8.94,11.90 Sp A3m
 
 
Coord 2000
20520+4346
Discov num
SKF2740
Comp
BC
Coord arcsec 2000
20 51 59.38 +43 45 24.2
Date first
1892
Date last
2013
Obs
5
Pa first
192
Pa last
192
P.A. Now (θ)
192°
Sep first
73.3
Sep last
73.5
Sep. Now (ρ)
73.5"
Mag pri
8.94
Mag sec
11.90
delta mag (ΔM)
2.96
Spectral class
A3m (white)
Pri motion ra
+029
Sec motion ra
+029
Pri motion dec
+005
Sec motion dec
+005
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
20520+4346 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20520+4346 STT 416 AB 1843 2016 100 118 9.6 8.64 8.94 0.30
Show 20520+4346 SKF2740 BC 1892 2013 5 192 73.5 8.94 11.90 2.96 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
last precise pa
192.2
last precise sep
73.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20520+4346 SKF2740 BC 2013 5 192 73.5 8.94 11.90 A3m V 205159.38+434524.2

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