00550+5858 BU 1098 AB (Ups1 Cas)

 
 
00h 55m 00.19s +58 58' 22.1" P.A. 63.00 sep 18.0 mag 4.96,12.50 Sp K2III dist. 100.7 pc (328.48 l.y.)
 
 
Coord 2000 00550+5858 Discov num BU 1098 Comp AB Coord arcsec 2000 00 55 00.19 +58 58 22.1
Date first 1889 Date last 2015 Obs 8
Pa first 75 Pa last 62.6 P.A. Now (θ) 62.6°
Sep first 12.8 Sep last 18.016 Sep. Now (ρ) 18.016"
Mag pri 4.96 Mag sec 12.50 delta mag (ΔM) 7.54 Spectral class K2III (yellow-orange)
Pri motion ra -034 Sec motion ra
Pri motion dec -041 Sec motion dec
Notes N W (See Notes, )
Nature of this double is uncertain.
 
 
00550+5858 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Ups1 Cas 21832 00 55 00 +58 58 22 BU 1098 AB 2015 8 63 18.0 4.96 12.50 7.54 <===
Show 21832 00 55 00 +58 58 22 BU 1098 AC 2015 7 125 93.8 4.96 12.89 7.93
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Ups1 Cas Constellation Cassiopeia SAO 21832 HIP 4292
Tycho2 3680-01840-1 Gaia DR2 425954863349543040 HD 5234 HR 253
GC 1086 ADS 748 BD BD+58 134 Bayer Upsilon 1 Cassiopeiae
Bayer name Ups1 Cas Flamsteed 26 Cassiopeiae Flamsteed name 26 Cas Distance 100.7
Distance ly 328.48 Bayer greek υ1 Cas