18211+7244 BUP 182BC

 
 
18h 21m 02.31s +72 46' 54.2" P.A. 303 sep 9.3 mag 12.10,14.50
 
 
Coord 2000
18211+7244
Discov num
BUP 182
Comp
BC
Coord arcsec 2000
18 21 02.31 +72 46 54.2
Date first
1908
Date last
2008
Obs
3
Pa first
302
Pa last
303
P.A. Now (θ)
303°
Sep first
10.2
Sep last
9.3
Sep. Now (ρ)
9.3"
Mag pri
12.10
Mag sec
14.50
delta mag (ΔM)
2.4
Spectral class
Pri motion ra
+000
Sec motion ra
+006
Pri motion dec
+010
Sec motion dec
+014
Notes
N (See Notes)
rPM=0.473
Nature of this double is uncertain.
 
 
18211+7244 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 9087 18211+7244 LAB 5 Aa,Ab 1973 2009 56 40 0.1 3.57 5.70 2.13 Y
Show Chi Dra 9087 18211+7244 BUP 182 AB 1879 2008 6 357 177.8 3.57 12.10 8.53
Show 18211+7244 BUP 182 BC 1908 2008 3 303 9.3 12.10 14.50 2.40 <===
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
303
Precise sep
9.3
Cdsa2 id
BUP 182 BC
Constellation
Draco
Tycho2
4437-00465-1
Ra deg
18.350641666666668
De deg
72.78172222222221
last precise pa
303
last precise sep
9.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18211+7244 BUP 182 BC 1908 1 302 10.2 11.80 13.30 182160.00+724400.0
18211+7244 BUP 182 BC 2008 2 303 9.3 11.80 13.30 182160.00+724400.0
18211+7244 BUP 182 BC 2010 4 301 8.8 12.10 14.50 N 182102.31+724654.2

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