04268+5539 STF 531 (HD 27856)

 
 
04h 26m 46.23s +55° 38' 37.6" P.A. 325.00 sep 1.0 mag 7.69,8.76 Sp F4IV dist. 158.73 pc (517.78 l.y.)
 
 
Coord 2000 04268+5539 Discov num STF 531 Comp Coord arcsec 2000 04 26 46.23 +55 38 37.6
Date first 1830 Date last 2019 Obs 51
Pa first 292 Pa last 325.3 P.A. Now (θ) 325.3°
Sep first 0.8 Sep last 0.96 Sep. Now (ρ) 0.96"
Mag pri 7.69 Mag sec 8.76 delta mag (ΔM) 1.07 Spectral class F4IV (yellow-white)
Pri motion ra -012 Sec motion ra -012
Pri motion dec +003 Sec motion dec +003
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 27856 Constellation Camelopardalis SAO 24614 HIP 20748
Tycho2 3736-00518-1 Gaia DR2 277328722660925824 HD 27856 GC 5355
ADS 3207 BD BD+55 881 Distance 158.73 Distance ly 517.78
 
 
ORBITAL ELEMENTS
 
 
Period (P)1107.5665y± 588.143 Periastron (T)1781.2947y± 83.3767 Semi-major axis (a)1.63387a± 0.80244
Eccentricity (e)0.64644± 0.28814 Inclination (i)74.344°± 8.228 Longitude of periastron (ω)101.967°± 27.691
Node (Ω)112.911°± 19.567 Notes ReferenceIzm2019
Equinox Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 321.7 0.973
2001 321.9 0.971
2002 322.1 0.970
2003 322.3 0.968
2004 322.5 0.966
2005 322.7 0.964
2006 322.8 0.962
2007 323.0 0.960
2008 323.2 0.958
2009 323.4 0.956
2010 323.6 0.954
2011 323.8 0.952
2012 324.0 0.950
2013 324.2 0.948
2014 324.4 0.946
2015 324.6 0.944
2016 324.8 0.942
2017 325.0 0.940
2018 325.2 0.938
2019 325.4 0.936
2020 325.6 0.934
2021 325.8 0.932
2022 326.0 0.930
2023 326.3 0.928
2024 326.5 0.926
2025 326.7 0.923
2026 326.9 0.921
2027 327.1 0.919
2028 327.3 0.917
2029 327.5 0.915
2030 327.7 0.913


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



 
 


wds04268%2B5539a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic