14142+2642 STF 1817 (HD 124643)

14h 14m 12.81s +26° 41' 43.8" P.A. 322.00 sep 0.1 mag 8.98,8.77 Sp F8 dist. 123.46 pc (402.73 l.y.)

Coord 2000 14142+2642 Discov num STF1817 Comp Coord arcsec 2000 14 14 12.81 +26 41 43.8
Date first 1832 Date last 2013 Obs 74
Pa first 7 Pa last 322.2 P.A. Now (θ) 322.2°
Sep first 1.6 Sep last 0.107 Sep. Now (ρ) 0.107"
Mag pri 8.98 Mag sec 8.77 delta mag (ΔM) 0.21 Spectral class F8 (yellow-white)
Pri motion ra -031 Sec motion ra -031
Pri motion dec -014 Sec motion dec -014
Notes O (Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 124643 Constellation Bootes SAO 83239 HIP 69551
Tycho2 2010-00695-1 Gaia DR2 1259265414547634944 HD 124643 GC 19215
ADS 9177 BD BD+27 2349 Distance 123.46 Distance ly 402.73




ORBITAL ELEMENTS

Period (P)832y Periastron (T)2085y Semi-major axis (a)1.115a
Eccentricity (e)0.55 Inclination (i)99.3° Longitude of periastron (ω)165.9°
Node (Ω)6.3° Notes ReferenceZir2014a
Equinox2000 Last observation2005 Grade5(1=Definitive, 9=Indet.)

label theta rho
2000 346.5 0.374
2001 345.9 0.364
2002 345.4 0.354
2003 344.8 0.344
2004 344.1 0.334
2005 343.5 0.324
2006 342.7 0.314
2007 342.0 0.304
2008 341.2 0.294
2009 340.3 0.284
2010 339.4 0.274
2011 338.4 0.264
2012 337.3 0.254
2013 336.1 0.244
2014 334.8 0.234
2015 333.5 0.225
2016 332.0 0.215
2017 330.3 0.206
2018 328.5 0.196
2019 326.5 0.187
2020 324.4 0.178
2021 322.0 0.170
2022 319.3 0.161
2023 316.4 0.153
2024 313.1 0.146
2025 309.6 0.139
2026 305.6 0.132
2027 301.3 0.126
2028 296.5 0.121
2029 291.4 0.117
2030 285.9 0.114


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



 
 


wds14142%2B2642a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic