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
Cdsa2 id
ES 144 BD
Constellation
Cepheus
Ra deg
21.898138888888887
De deg
62.60022222222222
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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