21323+5245 BU  370AB

 
 
21h 32m 16.33s +52 45' 01.6" P.A. 326 sep 3.4 mag 8.76,9.62 Sp A0
 
 
Coord 2000
21323+5245
Discov num
BU  370
Comp
AB
Coord arcsec 2000
21 32 16.33 +52 45 01.6
Date first
1875
Date last
2017
Obs
27
Pa first
340
Pa last
326
P.A. Now (θ)
326°
Sep first
4.0
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
8.76
Mag sec
9.62
delta mag (ΔM)
0.86
Spectral class
A0 (white)
Pri motion ra
+009
Sec motion ra
+001
Pri motion dec
-028
Sec motion dec
-017
Notes
rPM=0.462
Nature of this double is uncertain.
 
 
21323+5245 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21323+5245 BU 370 AB 1875 2017 27 326 3.4 8.76 9.62 0.86 <===
Show 21323+5245 A 1698 BC 1907 1929 3 347 2.4 9.62 14.60 4.98
Show 21323+5245 A 1698 BD 1907 2003 4 234 8.4 9.62 14.60 4.98
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
325.6
Precise sep
3.427
Cdsa2 id
BU 370 AB
Constellation
Cygnus
Tycho2
3966-01402-1
HD
205236
Ra deg
21.537869444444446
De deg
52.75044444444445
last precise pa
325.6
last precise sep
3.427
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21323+5245 BU 370 AB 2000 23 325 3.4 8.76 9.62 A0 D 213216.33+524501.6
21323+5245 BU 370 AB 2010 24 325 3.3 8.76 9.62 A0 D 213216.33+524501.6
21323+5245 BU 370 AB 2017 27 326 3.4 8.76 9.62 A0 213216.33+524501.6

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