00447+4817 BU  231AB (Omi Cas)

 
 
00h 44m 43.50s +48 17' 03.8" P.A. 302 sep 34.4 mag 4.54,11.20 Sp B5IIIe dist. 215.52 pc (703.03 l.y.)
 
 
Coord 2000
00447+4817
Discov num
BU  231
Comp
AB
Coord arcsec 2000
00 44 43.50 +48 17 03.8
Date first
1876
Date last
2011
Obs
14
Pa first
304
Pa last
302
P.A. Now (θ)
302°
Sep first
32.8
Sep last
34.4
Sep. Now (ρ)
34.4"
Mag pri
4.54
Mag sec
11.20
delta mag (ΔM)
6.66
Spectral class
B5IIIe (blue-white)
Pri motion ra
+019
Sec motion ra
+003
Pri motion dec
-007
Sec motion dec
-006
Notes
N (See Notes)
rPM=0.792
Nature of this double is uncertain.
 
 
00447+4817 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 36620 00447+4817 NOI 3 Aa,Ab 2005 2007 6 269 0.0 4.60 7.50 2.90 Y
Show Omi Cas 36620 00447+4817 BU 231 AB 1876 2011 14 302 34.4 4.54 11.20 6.66 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301.6
Precise sep
34.38
Name
Omi Cas
Constellation
Cassiopeia
SAO
36620
HIP
3504
HD
4180
HR
193
GC
882
BD
BD+47 183
Bayer
Omicron Cassiopeiae
Bayer name
Omi Cas
Flamsteed
22 Cassiopeiae
Flamsteed name
22 Cas
Distance
215.52
Distance ly
703.03
last precise pa
301.6
last precise sep
34.38
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00447+4817 BU 231 AB 1998 12 303 33.8 4.54 11.20 B5IIIe N D 004443.50+481703.8
00447+4817 BU 231 AB 2002 13 303 34.3 4.54 11.20 B5IIIe N D 004443.50+481703.8
00447+4817 BU 231 AB 2011 14 302 34.4 4.54 11.20 B5IIIe N D 004443.50+481703.8

If you need more information about this double, apply for a data request form to the WDS.