20211+4341 A    46AB

 
 
20h 21m 05.03s +43 40' 30.6" P.A. 78 sep 0.4 mag 9.00,9.20 Sp A2
 
 
Coord 2000
20211+4341
Discov num
A    46
Comp
AB
Coord arcsec 2000
20 21 05.03 +43 40 30.6
Date first
1901
Date last
2010
Obs
16
Pa first
88
Pa last
78
P.A. Now (θ)
78°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.00
Mag sec
9.20
delta mag (ΔM)
0.2
Spectral class
A2 (white)
Pri motion ra
+017
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20211+4341 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20211+4341 A 46 AB 1901 2010 16 78 0.4 9.00 9.20 0.20 <===
Show 20211+4341 A 46 AB,C 1898 2010 16 261 2.0 9.26 11.15 1.89
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
78.4
Precise sep
0.389
Constellation
Cygnus
SAO
49504
Tycho2
3164-01488-1
Gaia DR2
67335389312
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20211+4341 A 46 AB 1995 15 81 0.4 9.00 9.20 A2 202105.03+434030.6
20211+4341 A 46 AB 2010 16 78 0.4 9.00 9.20 A2 202105.03+434030.6

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