21538+6237 ES  144BD

 
 
21h 53m 53.30s +62 36' 00.8" P.A. 43 sep 23.6 mag 7.07,12.00 Sp B1V
 
 
Coord 2000
21538+6237
Discov num
ES  144
Comp
BD
Coord arcsec 2000
21 53 53.30 +62 36 00.8
Date first
1898
Date last
2011
Obs
4
Pa first
41
Pa last
43
P.A. Now (θ)
43°
Sep first
23.0
Sep last
23.6
Sep. Now (ρ)
23.6"
Mag pri
7.07
Mag sec
12.00
delta mag (ΔM)
4.93
Spectral class
B1V (blue-white)
Pri motion ra
-003
Sec motion ra
+006
Pri motion dec
-001
Sec motion dec
-003
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=1.374
This double is not physical.
 
 
21538+6237 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21538+6237 PET 13 Aa,Ab 2007 2007 1 212 0.1 7.03
Show 21538+6237 S 800 AB 1824 2016 28 145 62.5 7.07 7.91 0.84
Show 21538+6237 ES 144 AC 1898 2003 4 279 20.6 7.07 12.62 5.55
Show 21538+6237 ES 144 BD 1898 2011 4 43 23.6 7.07 12.00 4.93 <===
Show 21538+6237 PET 13 CE 2007 2007 1 291 1.2 11.82
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
42.7
Precise sep
23.61
Constellation
Cepheus
last precise pa
42.7
last precise sep
23.61
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21538+6237 ES 144 BD 2011 3 43 23.6 7.07 12.00 B1V NU 215353.30+623600.8

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