20421+0648 GWP2987

 
 
20h 42m 08.45s +06 48' 18.4" P.A. 295 sep 266 mag 16.30,18.90
 
 
Coord 2000
20421+0648
Discov num
GWP2987
Comp
Coord arcsec 2000
20 42 08.45 +06 48 18.4
Date first
1991
Date last
2010
Obs
3
Pa first
295
Pa last
295
P.A. Now (θ)
295°
Sep first
266.0
Sep last
266.0
Sep. Now (ρ)
266"
Mag pri
16.30
Mag sec
18.90
delta mag (ΔM)
2.6
Spectral class
Pri motion ra
-042
Sec motion ra
-042
Pri motion dec
-102
Sec motion dec
-096
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.054 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
295
Precise sep
265.98
Cdsa2 id
GWP 2987
Constellation
Delphinus
Ra deg
20.702347222222222
De deg
6.805111111111111
last precise pa
295
last precise sep
265.98
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20421+0648 GWP2987 2000 2 295 266.0 16.30 18.90 V R 204208.45+064818.4
20421+0648 GWP2987 2010 3 295 266.1 16.30 18.90 V R 204208.45+064818.4

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