20544+6957 A  1216CD

 
 
20h 54m 20.69s +69 57' 28.9" P.A. 81 sep 0.9 mag 10.61,11.60
 
 
Coord 2000
20544+6957
Discov num
A  1216
Comp
CD
Coord arcsec 2000
20 54 20.69 +69 57 28.9
Date first
1904
Date last
2008
Obs
5
Pa first
92
Pa last
81
P.A. Now (θ)
81°
Sep first
0.8
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
10.61
Mag sec
11.60
delta mag (ΔM)
0.99
Spectral class
Pri motion ra
-024
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20544+6957 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20544+6957 A 1216 AB 1904 2003 5 328 20.2 7.97 15.00 7.03
Show 20544+6957 A 1216 AC 1895 2003 9 347 38.8 7.97 10.61 2.64
Show 20544+6957 A 1216 CD 1904 2008 5 81 0.9 10.61 11.60 0.99 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
80.5
Precise sep
0.886
Constellation
Cepheus
last precise pa
80.5
last precise sep
0.886
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20544+6957 A 1216 CD 1984 4 85 0.7 10.41 11.40 205420.85+695732.2
20544+6957 A 1216 CD 2008 5 81 0.9 10.61 11.60 205420.85+695732.2

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