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
Constellation
Cygnus
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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