02460-0457 BU 83 AB (HD 17251)

 
 
02h 45m 59.63s -04° 57' 23.2" P.A. 10.00 sep 1.0 mag 7.73,9.64 Sp F2 dist. 75.87 pc (247.49 l.y.)
 
 
Coord 2000 02460-0457 Discov num BU   83 Comp AB Coord arcsec 2000 02 45 59.63 -04 57 23.2
Date first 1872 Date last 2021 Obs 75
Pa first 125 Pa last 9.9 P.A. Now (θ) 9.9°
Sep first 1.0 Sep last 1.005 Sep. Now (ρ) 1.005"
Mag pri 7.73 Mag sec 9.64 delta mag (ΔM) 1.91 Spectral class F2 (yellow-white)
Pri motion ra +050 Sec motion ra +050
Pri motion dec +002 Sec motion dec +002
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
02460-0457 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 17251 130100 02 45 60 -04 57 23 BU 83 AB 2021 75 10 1.0 7.73 9.64 1.91 Y <===
Show 02 45 60 -04 57 23 BU 83 Ba,Bb 2021 9 270 0.2 7.80 12.10 4.30
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 17251 Constellation Eridanus SAO 130100 HIP 12912
Tycho2 4702-00556-1 Gaia DR2 5184938090858917504 HD 17251 ADS 2111
BD BD-05 514 Distance 75.87 Distance ly 247.49
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #1
 
 
Identifier02460-0457 BU 83 Aa,Ab
coord_arcsec_2000024559.63-045723.2
Period (P)36y Periastron (T)1900.5y Semi-major axis (a)0.08a
Eccentricity (e)0.15 Inclination (i)50° Longitude of periastron (ω)280°
Node (Ω)110° Notesn ReferenceDom1972a
Equinox1900 Last observation1968 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 288.6 0.081
2001 295.0 0.078
2002 302.0 0.074
2003 309.9 0.069
2004 319.3 0.063
2005 330.9 0.056
2006 345.7 0.050
2007 4.0 0.045
2008 24.9 0.044
2009 45.2 0.046
2010 62.4 0.051
2011 76.1 0.058
2012 87.0 0.064
2013 96.0 0.070
2014 103.9 0.074
2015 111.1 0.077
2016 117.9 0.078
2017 124.7 0.077
2018 131.6 0.076
2019 138.9 0.073
2020 146.8 0.070
2021 155.4 0.067
2022 164.9 0.064
2023 175.3 0.061
2024 186.4 0.060
2025 198.1 0.059
2026 209.7 0.060
2027 220.8 0.061
2028 231.2 0.064
2029 240.5 0.068
2030 249.0 0.071


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



 
 


wds02460-0457r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #2
 
 
Identifier02460-0457 BU 83
coord_arcsec_2000024559.63-045723.2
Period (P)716.26y Periastron (T)2418.03y Semi-major axis (a)2.38a
Eccentricity (e)0.51 Inclination (i)101.4° Longitude of periastron (ω)290.2°
Node (Ω)147.7° Notesn ReferenceHrt2011d
Equinox2000 Last observation2010 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 20.0 0.869
2001 19.4 0.877
2002 18.7 0.885
2003 18.1 0.893
2004 17.5 0.901
2005 16.9 0.909
2006 16.4 0.917
2007 15.8 0.925
2008 15.2 0.933
2009 14.7 0.941
2010 14.1 0.950
2011 13.6 0.958
2012 13.1 0.967
2013 12.6 0.975
2014 12.1 0.984
2015 11.6 0.992
2016 11.1 1.001
2017 10.6 1.010
2018 10.1 1.019
2019 9.7 1.028
2020 9.2 1.036
2021 8.8 1.045
2022 8.3 1.054
2023 7.9 1.063
2024 7.5 1.072
2025 7.1 1.081
2026 6.6 1.091
2027 6.2 1.100
2028 5.8 1.109
2029 5.5 1.118
2030 5.1 1.127


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



 
 


wds02460-0457b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic