20310+2054 GCB  55

 
 
20h 30m 54.66s +20 55' 11.3" P.A. 149 sep 6.7 mag 11.80,11.90
 
 
Coord 2000
20310+2054
Discov num
GCB  55
Comp
Coord arcsec 2000
20 30 54.66 +20 55 11.3
Date first
1930
Date last
2015
Obs
16
Pa first
145
Pa last
149
P.A. Now (θ)
149°
Sep first
5.2
Sep last
6.7
Sep. Now (ρ)
6.7"
Mag pri
11.80
Mag sec
11.90
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
-001
Sec motion ra
+012
Pri motion dec
-004
Sec motion dec
-016
Notes
N (See Notes)
rPM=0.885
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
148.6
Precise sep
6.74
Constellation
Vulpecula
Gaia DR2
40869565440
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20310+2054 GCB 55 2004 4 148 6.7 11.80 11.90 N 203054.66+205511.3
20310+2054 GCB 55 2012 8 149 6.8 11.80 11.90 N 203054.66+205511.3
20310+2054 GCB 55 2013 10 150 6.7 11.80 11.90 N 203054.66+205511.3
20310+2054 GCB 55 2015 11 149 6.7 11.80 11.90 N 203054.66+205511.3

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