20155+3713 ES 2189

 
 
20h 15m 34.42s +37 13' 13.4" P.A. 129 sep 3.3 mag 9.64,12.80 Sp F8
 
 
Coord 2000
20155+3713
Discov num
ES 2189
Comp
Coord arcsec 2000
20 15 34.42 +37 13 13.4
Date first
1925
Date last
2000
Obs
2
Pa first
105
Pa last
129
P.A. Now (θ)
129°
Sep first
5.9
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
9.64
Mag sec
12.80
delta mag (ΔM)
3.16
Spectral class
F8 (yellow-white)
Pri motion ra
+033
Sec motion ra
Pri motion dec
+005
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
129.1
Precise sep
3.33
Constellation
Cygnus
Tycho2
2684-00855-1
Gaia DR2
72923398016
HD
228601
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20155+3713 ES 2189 1925 1 105 5.9 9.64 12.80 201534.42+371313.4
20155+3713 ES 2189 2000 2 129 3.3 9.64 12.80 F8 201534.42+371313.4

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