20247+3454 GRV 338

 
 
20h 24m 47.34s +34 54' 22.3" P.A. 20 sep 54.6 mag 12.23,14.11
 
 
Coord 2000
20247+3454
Discov num
GRV 338
Comp
Coord arcsec 2000
20 24 47.34 +34 54 22.3
Date first
1999
Date last
2015
Obs
8
Pa first
20
Pa last
20
P.A. Now (θ)
20°
Sep first
54.7
Sep last
54.6
Sep. Now (ρ)
54.6"
Mag pri
12.23
Mag sec
14.11
delta mag (ΔM)
1.88
Spectral class
Pri motion ra
+013
Sec motion ra
+012
Pri motion dec
+020
Sec motion dec
+003
Notes
rPM=0.714
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
20
Precise sep
54.573
Constellation
Cygnus
Tycho2
2693-00280-1
Gaia DR2
66678752896
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20247+3454 GRV 338 2000 2 20 54.7 12.00 13.90 D 202447.34+345422.3
20247+3454 GRV 338 2002 3 20 54.7 12.00 13.90 D 202447.34+345422.3
20247+3454 GRV 338 2010 3 20 54.9 12.23 14.11 202447.34+345422.3
20247+3454 GRV 338 2015 4 20 54.6 12.23 14.11 202447.34+345422.3

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