20280+3008 BU   62AC

 
 
20h 28m 00.64s +30 08' 02.6" P.A. 179 sep 38.2 mag 8.70,10.65 Sp A0
 
 
Coord 2000
20280+3008
Discov num
BU   62
Comp
AC
Coord arcsec 2000
20 28 00.64 +30 08 02.6
Date first
1894
Date last
2015
Obs
12
Pa first
180
Pa last
179
P.A. Now (θ)
179°
Sep first
39.0
Sep last
38.2
Sep. Now (ρ)
38.2"
Mag pri
8.70
Mag sec
10.65
delta mag (ΔM)
1.95
Spectral class
A0 (white)
Pri motion ra
-005
Sec motion ra
-001
Pri motion dec
-005
Sec motion dec
+002
Notes
rPM=1.14
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 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
178.5
Precise sep
38.164
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 AC 1999 8 179 38.1 8.70 10.65 D 202800.64+300802.6
20280+3008 BU 62 AC 2009 9 179 38.0 8.70 10.65 D 202800.64+300802.6
20280+3008 BU 62 AC 2015 12 179 38.2 8.70 10.65 A0 202800.64+300802.6

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