14380+5135 STF 1863 (HD 128941)

14h 38m 00.71s +51° 34' 42.1" P.A. 58.00 sep 0.6 mag 7.71,7.80 Sp F4V dist. 82.17 pc (268.04 l.y.)

Coord 2000 14380+5135 Discov num STF1863 Comp Coord arcsec 2000 14 38 00.71 +51 34 42.1
Date first 1830 Date last 2021 Obs 209
Pa first 110 Pa last 58.2 P.A. Now (θ) 58.2°
Sep first 0.7 Sep last 0.62 Sep. Now (ρ) 0.62"
Mag pri 7.71 Mag sec 7.80 delta mag (ΔM) 0.09 Spectral class F4V (yellow-white)
Pri motion ra -056 Sec motion ra -056
Pri motion dec +007 Sec motion dec +007
Notes O (Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 128941 Constellation Bootes SAO 29224 HIP 71548
Tycho2 3479-00568-1 Gaia DR2 1604285772431915648 HD 128941 GC 19734
ADS 9329 BD BD+52 1816 Distance 82.17 Distance ly 268.04




ORBITAL ELEMENTS

Period (P)538y Periastron (T)1774.3y Semi-major axis (a)1.08a
Eccentricity (e)0.91 Inclination (i)108.2° Longitude of periastron (ω)269°
Node (Ω)140.2° Notes ReferenceZir2013a
Equinox2000 Last observation2010 Grade4(1=Definitive, 9=Indet.)

label theta rho
2000 63.8 0.650
2001 63.6 0.650
2002 63.3 0.650
2003 63.1 0.650
2004 62.9 0.650
2005 62.6 0.650
2006 62.4 0.649
2007 62.2 0.649
2008 61.9 0.649
2009 61.7 0.649
2010 61.4 0.649
2011 61.2 0.649
2012 61.0 0.649
2013 60.7 0.649
2014 60.5 0.649
2015 60.2 0.649
2016 60.0 0.649
2017 59.8 0.648
2018 59.5 0.648
2019 59.3 0.648
2020 59.0 0.648
2021 58.8 0.648
2022 58.5 0.648
2023 58.3 0.648
2024 58.1 0.648
2025 57.8 0.648
2026 57.6 0.647
2027 57.3 0.647
2028 57.1 0.647
2029 56.9 0.647
2030 56.6 0.647


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



 
 


wds14380%2B5135a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic