21017+2938 RBR  51Aa,Ab

 
 
21h 01m 43.49s +29 37' 48.5" P.A. 181 sep 0.6 mag 8.00,13.00 Sp B8
 
 
Coord 2000
21017+2938
Discov num
RBR  51
Comp
Aa,Ab
Coord arcsec 2000
21 01 43.49 +29 37 48.5
Date first
2005
Date last
2005
Obs
1
Pa first
181
Pa last
181
P.A. Now (θ)
181°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.00
Mag sec
13.00
delta mag (ΔM)
5
Spectral class
B8 (blue-white)
Pri motion ra
+003
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21017+2938 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21017+2938 RBR 51 Aa,Ab 2005 2005 1 181 0.6 8.00 13.00 5.00 <===
Show 21017+2938 COU1180 1974 2005 7 204 3.7 7.99 11.21 3.22
Triple system
1 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
180.8
Precise sep
0.6
Cdsa2 id
RBR 51 Aa,Ab
Constellation
Cygnus
Ra deg
21.028747222222222
De deg
29.63013888888889
last precise pa
180.8
last precise sep
0.6
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21017+2938 RBR 51 Aa,Ab 2005 1 181 0.6 8.00 13.00 B8 210143.49+293748.5

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