02308+5533 STF 270 AC

 
 
02h 30m 50.65s +55° 32' 54.2" P.A. 333.00 sep 48.0 mag 7.00,11.37 Sp F4V dist. 54.7 pc (178.43 l.y.)
 
 
Coord 2000 02308+5533 Discov num STF 270 Comp AC Coord arcsec 2000 02 30 50.65 +55 32 54.2
Date first 1902 Date last 2015 Obs 13
Pa first 339 Pa last 333.1 P.A. Now (θ) 333.1°
Sep first 35.5 Sep last 48.011 Sep. Now (ρ) 48.011"
Mag pri 7.00 Mag sec 11.37 delta mag (ΔM) 4.37 Spectral class F4V (yellow-white)
Pri motion ra +083 Sec motion ra +000
Pri motion dec -097 Sec motion dec -012
Notes N (See Notes)
rPM=0.931
This double is not physical.
 
 
02308+5533 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 15407 23389 02 30 51 +55 32 54 STF 270 AB 2016 45 305 21.3 7.00 9.66 2.66
Show 23389 02 30 51 +55 32 54 STF 270 AC 2015 13 333 48.0 7.00 11.37 4.37 <===
Show 23389 02 30 51 +55 32 54 STF 270 AD 2015 10 281 51.1 7.00 14.20 7.20
Show 02 30 49 +55 33 06 STF 270 BD 2015 7 265 32.8 9.66 14.20 4.54
Show 02 30 49 +55 33 06 RAO 42 BE 2015 7 208 16.0 9.66 14.70 5.04
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Perseus SAO 23389 HIP 11696 Tycho2 3691-00669-1
Gaia DR2 457326850673147264 HD 15407 BD BD+54 561 Distance 54.7
Distance ly 178.43