20280+3008 BU   62AB

 
 
20h 28m 00.64s +30 08' 02.6" P.A. 133 sep 1.2 mag 8.70,9.79 Sp A0
 
 
Coord 2000
20280+3008
Discov num
BU   62
Comp
AB
Coord arcsec 2000
20 28 00.64 +30 08 02.6
Date first
1871
Date last
2016
Obs
24
Pa first
140
Pa last
133
P.A. Now (θ)
133°
Sep first
1.3
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
8.70
Mag sec
9.79
delta mag (ΔM)
1.09
Spectral class
A0 (white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-007
Sec motion dec
-007
Notes
Nature of this double is uncertain.
 
 
20280+3008 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20280+3008 BU 62 AB 1871 2016 24 133 1.2 8.70 9.79 1.09 <===
Show 20280+3008 BU 62 AC 1894 2015 12 179 38.2 8.70 10.65 1.95
Show 20280+3008 BU 62 AD 1900 2015 8 267 46.1 8.70 12.81 4.11
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
132.9
Precise sep
1.248
Constellation
Cygnus
SAO
88708
Tycho2
2685-01097-1
Gaia DR2
39418746880
HD
195051
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20280+3008 BU 62 AB 2005 21 134 1.2 8.70 9.79 A0 202800.64+300802.6
20280+3008 BU 62 AB 2016 23 133 1.2 8.70 9.79 A0 202800.64+300802.6

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