20280+3008 BU   62AD

 
 
20h 28m 00.64s +30 08' 02.6" P.A. 267.00 sep 46.1 mag 8.70,12.81 Sp A0
 
 
Coord 2000
20280+3008
Discov num
BU   62
Comp
AD
Coord arcsec 2000
20 28 00.64 +30 08 02.6
Date first
1900
Date last
2015
Obs
8
Pa first
268
Pa last
267
P.A. Now (θ)
267°
Sep first
46.3
Sep last
46.1
Sep. Now (ρ)
46.1"
Mag pri
8.70
Mag sec
12.81
delta mag (ΔM)
4.11
Spectral class
A0 (white)
Pri motion ra
-005
Sec motion ra
+004
Pri motion dec
-005
Sec motion dec
-005
Notes
rPM=1.273
This double is not physical.
 
 
20280+3008 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 88708 20280+3008 BU 62 AB 1871 2016 24 133 1.2 8.70 9.79 1.09
Show 88708 20280+3008 BU 62 AC 1894 2015 12 179 38.2 8.70 10.65 1.95
Show 88708 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
267
Precise sep
46.14
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 AD 1999 6 267 46.4 8.70 12.81 D 202800.64+300802.6
20280+3008 BU 62 AD 2002 7 267 46.4 8.70 12.81 D 202800.64+300802.6
20280+3008 BU 62 AD 2015 8 267 46.1 8.70 12.81 A0 202800.64+300802.6

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