02174+6121 STF 234 AB

 
 
02h 17m 23.00s +61° 21' 06.5" P.A. 222.00 sep 0.6 mag 8.74,9.40 Sp G2V dist. 59.14 pc (192.91 l.y.)
 
 
Coord 2000 02174+6121 Discov num STF 234 Comp AB Coord arcsec 2000 02 17 23.00 +61 21 06.5
Date first 1831 Date last 2012 Obs 73
Pa first 239 Pa last 222.4 P.A. Now (θ) 222.4°
Sep first 0.8 Sep last 0.641 Sep. Now (ρ) 0.641"
Mag pri 8.74 Mag sec 9.40 delta mag (ΔM) 0.66 Spectral class G2V (yellow)
Pri motion ra +051 Sec motion ra +051
Pri motion dec -087 Sec motion dec -087
Notes O (Orbital solution)
This double is physical.
 
 
02174+6121 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 12207 02 17 23 +61 21 06 STF 234 AB 2012 73 222 0.6 8.74 9.40 0.66 Y <===
Show HD 13864 12207 02 17 23 +61 21 06 STF 234 AB,C 2014 7 248 83.5 8.26 12.38 4.12
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cassiopeia SAO 12207 HIP 10677 Tycho2 4046-00286-1
Gaia DR2 513697364421968000 HD 13864 GC 2727 ADS 1737
BD BD+60 457 Distance 59.14 Distance ly 192.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)139.868y Periastron (T)1909.214y Semi-major axis (a)0.51a
Eccentricity (e)0.718 Inclination (i)123.5° Longitude of periastron (ω)353.9°
Node (Ω)54.8° Notes ReferenceSta1983
Equinox1900 Last observation1978 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 230.9 0.816
2001 230.5 0.810
2002 230.1 0.803
2003 229.7 0.796
2004 229.3 0.789
2005 228.8 0.781
2006 228.4 0.772
2007 228.0 0.764
2008 227.5 0.755
2009 227.1 0.745
2010 226.6 0.735
2011 226.1 0.725
2012 225.6 0.715
2013 225.1 0.703
2014 224.6 0.692
2015 224.0 0.680
2016 223.5 0.667
2017 222.9 0.655
2018 222.3 0.641
2019 221.6 0.627
2020 221.0 0.613
2021 220.3 0.598
2022 219.5 0.583
2023 218.8 0.567
2024 217.9 0.550
2025 217.1 0.533
2026 216.1 0.516
2027 215.1 0.498
2028 214.0 0.479
2029 212.9 0.460
2030 211.6 0.440


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds02174%2B6121a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic