20289+5655 TOB 187AD

 
 
20h 28m 52.84s +56 55' 23.0" P.A. 189 sep 31.2 mag 9.73,11.80 Sp K0
 
 
Coord 2000
20289+5655
Discov num
TOB 187
Comp
AD
Coord arcsec 2000
20 28 52.84 +56 55 23.0
Date first
1983
Date last
2015
Obs
9
Pa first
189
Pa last
189
P.A. Now (θ)
189°
Sep first
28.8
Sep last
31.2
Sep. Now (ρ)
31.2"
Mag pri
9.73
Mag sec
11.80
delta mag (ΔM)
2.07
Spectral class
K0 (yellow-orange)
Pri motion ra
+022
Sec motion ra
-002
Pri motion dec
+039
Sec motion dec
+004
Notes
W
rPM=0.948
This double is not physical.
 
 
20289+5655 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20289+5655 STI2535 AB 1899 2015 14 227 13.6 9.73 10.57 0.84
Show 20289+5655 TOB 187 AC 1983 2015 12 132 26.9 9.73 11.34 1.61
Show 20289+5655 TOB 187 AD 1983 2015 9 189 31.2 9.73 11.80 2.07 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
188.7
Precise sep
31.217
Constellation
Cygnus
SAO
32618
Tycho2
3958-00952-1
Gaia DR2
44058553728
HD
239426
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20289+5655 TOB 187 AD 1999 2 188 30.6 9.73 11.80 K0 D 202852.84+565523.0
20289+5655 TOB 187 AD 2003 3 188 30.7 9.73 11.80 K0 D 202852.84+565523.0
20289+5655 TOB 187 AD 2013 4 188 31.3 9.73 11.80 K0 202852.84+565523.0
20289+5655 TOB 187 AD 2015 5 189 31.2 9.73 11.80 K0 W 202852.84+565523.0

If you need more information about this double, apply for a data request form to the WDS.