20155+3415 GCB  51

 
 
20h 15m 18.62s +34 17' 38.9" P.A. 215 sep 2.9 mag 12.50,13.50
 
 
Coord 2000
20155+3415
Discov num
GCB  51
Comp
Coord arcsec 2000
20 15 18.62 +34 17 38.9
Date first
1923
Date last
2015
Obs
4
Pa first
203
Pa last
215
P.A. Now (θ)
215°
Sep first
2.0
Sep last
2.9
Sep. Now (ρ)
2.9"
Mag pri
12.50
Mag sec
13.50
delta mag (ΔM)
1
Spectral class
Pri motion ra
+032
Sec motion ra
Pri motion dec
+043
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
215.4
Precise sep
2.855
Constellation
Cygnus
Tycho2
2680-01189-1
Gaia DR2
06713261952
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20155+3415 GCB 51 1996 2 209 2.4 12.50 13.50 I 201546.56+341654.3
20155+3415 GCB 51 2000 3 214 2.5 12.50 13.50 201518.62+341738.9
20155+3415 GCB 51 2002 4 214 2.9 12.50 13.50 201518.62+341738.9
20155+3415 GCB 51 2015 4 215 2.9 12.50 13.50 201518.62+341738.9

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