21426+4226 BU 1505BC

 
 
21h 42m 32.99s +42 26' 16.6" P.A. 174 sep 21.9 mag 10.56,12.68
 
 
Coord 2000
21426+4226
Discov num
BU 1505
Comp
BC
Coord arcsec 2000
21 42 32.99 +42 26 16.6
Date first
1998
Date last
2012
Obs
4
Pa first
176
Pa last
174
P.A. Now (θ)
174°
Sep first
21.3
Sep last
21.9
Sep. Now (ρ)
21.9"
Mag pri
10.56
Mag sec
12.68
delta mag (ΔM)
2.12
Spectral class
Pri motion ra
+003
Sec motion ra
-009
Pri motion dec
-014
Sec motion dec
-007
Notes
rPM=0.97
This double is not physical.
 
 
21426+4226 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21426+4226 STF2820 AB 1895 2012 14 233 16.3 7.48 10.56 3.08
Show 21426+4226 BU 1505 AC 1903 2012 5 200 33.3 7.48 12.68 5.20
Show 21426+4226 BU 1505 BC 1998 2012 4 174 21.9 10.56 12.68 2.12 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
174.2
Precise sep
21.9
Cdsa2 id
BU 1505 BC
Constellation
Cygnus
Ra deg
21.709163888888888
De deg
42.43794444444444
last precise pa
174.2
last precise sep
21.9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21426+4226 BU 1505 BC 2006 2 176 21.9 10.56 12.68 D 214232.99+422616.6
21426+4226 BU 1505 BC 2012 4 174 21.9 10.56 12.68 D 214232.99+422616.6

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