20229+4243 A   289AB

 
 
20h 22m 51.41s +42 43' 16.0" P.A. 155 sep 3.9 mag 8.69,11.40 Sp A
 
 
Coord 2000
20229+4243
Discov num
A   289
Comp
AB
Coord arcsec 2000
20 22 51.41 +42 43 16.0
Date first
1901
Date last
2002
Obs
11
Pa first
156
Pa last
155
P.A. Now (θ)
155°
Sep first
3.6
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
8.69
Mag sec
11.40
delta mag (ΔM)
2.71
Spectral class
A (white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
+004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20229+4243 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20229+4243 A 289 AB 1901 2002 11 155 3.9 8.69 11.40 2.71 <===
Show 20229+4243 A 289 AC 1892 2004 9 351 70.1 8.69 10.47 1.78
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
154.7
Precise sep
3.878
Constellation
Cygnus
SAO
49547
Tycho2
3160-01706-1
Gaia DR2
81516192384
HD
194240
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20229+4243 A 289 AB 1998 10 159 3.4 8.69 11.40 A D 202251.41+424316.0
20229+4243 A 289 AB 2002 11 155 3.9 8.69 11.40 A D 202251.41+424316.0

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