20239+1217 GRV 337

 
 
20h 23m 57.50s +12 17' 58.9" P.A. 170 sep 62.5 mag 9.50,13.30
 
 
Coord 2000
20239+1217
Discov num
GRV 337
Comp
Coord arcsec 2000
20 23 57.50 +12 17 58.9
Date first
1999
Date last
2015
Obs
7
Pa first
171
Pa last
170
P.A. Now (θ)
170°
Sep first
62.5
Sep last
62.5
Sep. Now (ρ)
62.5"
Mag pri
9.50
Mag sec
13.30
delta mag (ΔM)
3.8
Spectral class
Pri motion ra
-015
Sec motion ra
-011
Pri motion dec
-017
Sec motion dec
-028
Notes
rPM=0.389
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
170.4
Precise sep
62.546
Constellation
Delphinus
Tycho2
1082-00020-1
Gaia DR2
39701753344
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20239+1217 GRV 337 2000 2 170 62.5 9.50 13.30 D 202357.50+121758.9
20239+1217 GRV 337 2001 3 170 62.5 9.50 13.30 D 202357.50+121758.9
20239+1217 GRV 337 2010 3 171 62.5 9.50 13.30 202357.50+121758.9
20239+1217 GRV 337 2015 4 170 62.6 9.50 13.30 202357.50+121758.9

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