20008+2949 BU  439AB

 
 
20h 00m 46.25s +29 49' 19.4" P.A. 240 sep 2.9 mag 7.89,12.70 Sp G0V
 
 
Coord 2000
20008+2949
Discov num
BU  439
Comp
AB
Coord arcsec 2000
20 00 46.25 +29 49 19.4
Date first
1876
Date last
1925
Obs
16
Pa first
250
Pa last
240
P.A. Now (θ)
240°
Sep first
2.7
Sep last
2.9
Sep. Now (ρ)
2.9"
Mag pri
7.89
Mag sec
12.70
delta mag (ΔM)
4.81
Spectral class
G0V (yellow)
Pri motion ra
+016
Sec motion ra
Pri motion dec
-115
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20008+2949 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 88066 20008+2949 BU 439 AB 1876 1925 16 240 2.9 7.89 12.70 4.81 <===
Show 88066 20008+2949 BU 439 AC 1907 2014 7 201 38.5 7.89 12.25 4.36
Show 88066 20008+2949 FOX9033 AD 1913 2000 3 60 10.8 7.89 12.00 4.11
Show 88066 20008+2949 FOX9033 AE 1913 2002 3 122 23.2 7.89 14.40 6.51
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
240.1
Precise sep
2.92
Constellation
Cygnus
SAO
88066
Tycho2
2153-02502-1
HD
189796
last precise pa
240.1
last precise sep
2.92
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20008+2949 BU 439 AB 1925 16 240 2.9 7.89 12.70 G0V D 200046.25+294919.4

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