20028+3158 ES  359AB

 
 
20h 02m 48.81s +31 57' 31.8" P.A. 135 sep 30.4 mag 6.51,12.60 Sp K1III dist. 286.53 pc (934.66 l.y.)
 
 
Coord 2000
20028+3158
Discov num
ES  359
Comp
AB
Coord arcsec 2000
20 02 48.81 +31 57 31.8
Date first
1902
Date last
2015
Obs
6
Pa first
133
Pa last
135
P.A. Now (θ)
135°
Sep first
30.0
Sep last
30.4
Sep. Now (ρ)
30.4"
Mag pri
6.51
Mag sec
12.60
delta mag (ΔM)
6.09
Spectral class
K1III (yellow-orange)
Pri motion ra
+011
Sec motion ra
+004
Pri motion dec
+013
Sec motion dec
+002
Notes
N (See Notes)
rPM=0.766
Nature of this double is uncertain.
 
 
20028+3158 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20028+3158 ES 359 AB 1902 2015 6 135 30.4 6.51 12.60 6.09 <===
Show 20028+3158 ES 359 BC 1906 2015 8 67 6.2 12.60 14.00 1.40
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
134.8
Precise sep
30.443
Constellation
Cygnus
SAO
69307
HIP
98701
Tycho2
2674-05841-1
Gaia DR2
87618514816
HD
190227
BD
BD+31 3905
Distance
286.53
Distance ly
934.66
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20028+3158 ES 359 AB 2002 3 134 30.1 6.51 12.60 K1III N 200248.81+315731.8
20028+3158 ES 359 AB 2015 6 135 30.4 6.51 12.60 K1III N 200248.81+315731.8

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