00447+4817 BU 231 AB (Omi Cas)

 
 
00h 44m 43.50s +48 17' 03.8" P.A. 302.00 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 301.6 P.A. Now (θ) 301.6°
Sep first 32.8 Sep last 34.38 Sep. Now (ρ) 34.38"
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 36620 00 44 44 +48 17 04 NOI 3 Aa,Ab 2018 15 267 0.0 4.60 7.50 2.90 Y
Show Omi Cas 36620 00 44 44 +48 17 04 BU 231 AB 2011 14 302 34.4 4.54 11.20 6.66 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Omi Cas Constellation Cassiopeia SAO 36620 HIP 3504
Tycho2 3253-01988-1 Gaia DR2 390548351252549760 HD 4180 HR 193
GC 882 ADS 622 BD BD+47 183 Bayer Omicron Cassiopeiae
Bayer name Omi Cas Flamsteed 22 Cassiopeiae Flamsteed name 22 Cas FK5 25
Distance 215.52 Distance ly 703.03 Bayer greek ο Cas