13461+0507 STF 1781 AB (HT Vir)

 
 
13h 46m 06.75s +05° 06' 56.1" P.A. 198.00 sep 1.1 mag 7.89,8.10 Sp F8V+F0 dist. 46.38 pc (151.29 l.y.)
 
 
Coord 2000 13461+0507 Discov num STF1781 Comp AB Coord arcsec 2000 13 46 06.75 +05 06 56.1
Date first 1830 Date last 2020 Obs 298
Pa first 240 Pa last 197.6 P.A. Now (θ) 200.3°
Sep first 1.4 Sep last 1.067 Sep. Now (ρ) 1.07"
Mag pri 7.89 Mag sec 8.10 delta mag (ΔM) 0.21 Spectral class F8V+F0 (yellow-white/yellow-white)
Pri motion ra -103 Sec motion ra -103
Pri motion dec -035 Sec motion dec -035
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
13461+0507 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HT Vir 120102 13 46 07 +05 06 56 STF 1781 AB 2020 298 198 1.1 7.89 8.10 0.21 Y <===
Show 120102 13 46 07 +05 06 56 TOK 568 AC 2015 6 128 999.9 7.34 9.76 2.42
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name HT Vir Constellation Virgo SAO 120102 HIP 67186
Tycho2 0314-01342-1 Gaia DR2 3714227557974504576 HD 119931 GC 18609
ADS 9019 BD BD+05 2794 Distance 46.38 Distance ly 151.29
 
 
ORBITAL ELEMENTS
 
 
Period (P)253.7049y± 5.6027 Periastron (T)1976.2178y± 0.1619 Semi-major axis (a)1.00383a± 0.00985
Eccentricity (e)0.63185± 0.00601 Inclination (i)44.45°± 0.727 Longitude of periastron (ω)250.326°± 1.05
Node (Ω)179.465°± 0.942 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 178.8 0.757
2001 180.2 0.776
2002 181.4 0.794
2003 182.7 0.812
2004 183.8 0.830
2005 185.0 0.846
2006 186.1 0.862
2007 187.1 0.878
2008 188.1 0.893
2009 189.1 0.908
2010 190.0 0.922
2011 191.0 0.936
2012 191.8 0.949
2013 192.7 0.962
2014 193.6 0.974
2015 194.4 0.986
2016 195.2 0.998
2017 196.0 1.009
2018 196.7 1.020
2019 197.5 1.031
2020 198.2 1.041
2021 198.9 1.051
2022 199.7 1.061
2023 200.3 1.070
2024 201.0 1.079
2025 201.7 1.088
2026 202.4 1.096
2027 203.0 1.105
2028 203.7 1.112
2029 204.3 1.120
2030 204.9 1.127


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



 
 


wds13461%2B0507b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic