20336+4719 ES  665

 
 
20h 33m 35.83s +47 18' 07.7" P.A. 129.00 sep 5.7 mag 9.91,10.80
 
 
Coord 2000
20336+4719
Discov num
ES  665
Comp
Coord arcsec 2000
20 33 35.83 +47 18 07.7
Date first
1893
Date last
2018
Obs
16
Pa first
128
Pa last
129
P.A. Now (θ)
129°
Sep first
6.2
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
9.91
Mag sec
10.80
delta mag (ΔM)
0.89
Spectral class
Pri motion ra
+014
Sec motion ra
+013
Pri motion dec
+013
Sec motion dec
+013
Notes
T (Parallax indicates physical)
Visually invisible, K-band or other infrared star rPM=0.052 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
129
Precise sep
5.72
Constellation
Cygnus
Tycho2
3577-02527-1
Gaia DR2
61371517440
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20336+4719 ES 665 2003 9 126 5.7 9.91 10.80 D 203335.83+471807.7
20336+4719 ES 665 2010 11 128 5.7 9.91 10.80 203335.83+471807.7
20336+4719 ES 665 2015 12 127 5.7 9.91 10.80 203335.83+471807.7
20336+4719 ES 665 2018 16 129 5.7 9.91 10.80 T 203335.83+471807.7

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