21476+2439 GRV 507AB

 
 
21h 47m 39.22s +24 39' 06.2" P.A. 317 sep 92.7 mag 10.90,11.55
 
 
Coord 2000
21476+2439
Discov num
GRV 507
Comp
AB
Coord arcsec 2000
21 47 39.22 +24 39 06.2
Date first
1991
Date last
2015
Obs
4
Pa first
317
Pa last
317
P.A. Now (θ)
317°
Sep first
92.8
Sep last
92.7
Sep. Now (ρ)
92.7"
Mag pri
10.90
Mag sec
11.55
delta mag (ΔM)
0.65
Spectral class
Pri motion ra
-013
Sec motion ra
-020
Pri motion dec
-013
Sec motion dec
-023
Notes
rPM=0.4
Nature of this double is uncertain.
 
 
21476+2439 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21476+2439 GRV 507 AB 1991 2015 4 317 92.7 10.90 11.55 0.65 <===
Show 21476+2439 GRV 507 AC 1997 2015 3 268 41.1 10.90 12.57 1.67
Show 21476+2439 GRV 506 BC 1891 2015 5 162 72.4 11.55 12.57 1.02
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
316.9
Precise sep
92.668
Constellation
Pegasus
Tycho2
2206-00530-1
Gaia DR2
55403121152
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21476+2439 GRV 507 AB 2001 2 317 92.8 10.90 11.55 214739.22+243906.2
21476+2439 GRV 507 AB 2015 4 317 92.7 10.90 11.55 214739.22+243906.2

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