22240+0612 RAO 27 Aa,Ab (HD 212426)

 
 
22h 24m 01.31s +06 12' 10.2" P.A. 331.00 sep 0.1 mag 8.20,8.00 Sp G0 dist. 52.52 pc (171.32 l.y.)
 
 
Coord 2000 22240+0612 Discov num RAO  27 Comp Aa,Ab Coord arcsec 2000 22 24 01.31 +06 12 10.2
Date first 2012 Date last 2020 Obs 8
Pa first 327 Pa last 331 P.A. Now (θ) 148.6°
Sep first 0.1 Sep last 0.133 Sep. Now (ρ) 0.118"
Mag pri 8.20 Mag sec 8.00 delta mag (ΔM) 0.2 Spectral class G0 (yellow)
Pri motion ra +035 Sec motion ra
Pri motion dec -048 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
22240+0612 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 212426 127506 22 24 01 +06 12 10 RAO 27 Aa,Ab 2020 8 331 0.1 8.20 8.00 0.20 Y <===
Show 22 24 01 +06 12 10 TOK 350 AB 2016 8 7 171.3 8.20 15.88 7.68
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 212426 Constellation Pegasus SAO 127506 HIP 110574
Tycho2 0566-00446-1 Gaia DR2 2710047638481130240 HD 212426 BD BD+05 5015
Distance 52.52 Distance ly 171.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)11.24y± 0.36 Periastron (T)2015.88y± 0.1 Semi-major axis (a)0.097a± 0.002
Eccentricity (e)0.403± 0.014 Inclination (i)94.7°± 0.8 Longitude of periastron (ω)181.4°± 3.6
Node (Ω)150.7°± 0.6 Notesn ReferenceTok2021c
Equinox2000 Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 149.3 0.128
2001 147.7 0.104
2002 144.4 0.065
2003 119.4 0.014
2004 335.8 0.044
2005 328.0 0.052
2006 248.5 0.007
2007 158.0 0.056
2008 154.0 0.098
2009 152.2 0.125
2010 150.9 0.136
2011 149.7 0.131
2012 148.1 0.111
2013 145.5 0.076
2014 134.7 0.026
2015 339.7 0.032
2016 329.8 0.057
2017 309.2 0.016
2018 160.2 0.044
2019 154.6 0.090
2020 152.6 0.120
2021 151.2 0.135
2022 150.0 0.134
2023 148.6 0.118
2024 146.4 0.086
2025 139.9 0.039
2026 348.2 0.020
2027 331.4 0.058
2028 320.6 0.029
2029 164.3 0.031
2030 155.4 0.080


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



 
 


wds22240%2B0612a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic