13343-0019 STF 1757 AB (HD 118036)

 
 
13h 34m 16.38s -00° 18' 49.8" P.A. 144.00 sep 1.6 mag 7.82,8.75 Sp K4III dist. 26.56 pc (86.64 l.y.)
 
 
Coord 2000 13343-0019 Discov num STF1757 Comp AB Coord arcsec 2000 13 34 16.38 -00 18 49.8
Date first 1825 Date last 2019 Obs 385
Pa first 10 Pa last 144 P.A. Now (θ) 148.1°
Sep first 1.6 Sep last 1.645 Sep. Now (ρ) 1.568"
Mag pri 7.82 Mag sec 8.75 delta mag (ΔM) 0.93 Spectral class K4III (yellow-orange)
Pri motion ra -219 Sec motion ra -219
Pri motion dec +021 Sec motion dec +021
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
13343-0019 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 118036 139416 13 34 16 -00 18 50 STF 1757 AB 2019 385 144 1.6 7.82 8.75 0.93 Y <===
Show 139416 13 34 16 -00 18 50 STF 1757 AC 2015 14 135 55.8 7.82 12.51 4.69
Show 139416 13 34 16 -00 18 50 STF 1757 AD 2015 6 75 146.0 7.82 11.90 4.08
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 118036 Constellation Virgo SAO 139416 HIP 66212
Tycho2 4966-00230-1 HD 118036 GC 18338 ADS 8949
BD BD+00 3075 Distance 26.56 Distance ly 86.64
 
 
ORBITAL ELEMENTS
 
 
Period (P)344.1128y± 108.6492 Periastron (T)2088.1663y± 35.6833 Semi-major axis (a)2.2042a± 0.49731
Eccentricity (e)0.25953± 0.13979 Inclination (i)50.025°± 8.634 Longitude of periastron (ω)160.383°± 49.297
Node (Ω)97.408°± 2.509 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 125.7 2.060
2001 126.5 2.040
2002 127.2 2.019
2003 128.0 1.999
2004 128.8 1.978
2005 129.6 1.957
2006 130.5 1.936
2007 131.3 1.914
2008 132.2 1.893
2009 133.1 1.871
2010 134.0 1.850
2011 134.9 1.828
2012 135.9 1.806
2013 136.8 1.784
2014 137.8 1.763
2015 138.9 1.741
2016 139.9 1.719
2017 141.0 1.697
2018 142.1 1.675
2019 143.3 1.653
2020 144.4 1.632
2021 145.6 1.610
2022 146.9 1.589
2023 148.1 1.568
2024 149.4 1.547
2025 150.8 1.526
2026 152.1 1.506
2027 153.5 1.485
2028 155.0 1.466
2029 156.5 1.446
2030 158.0 1.427


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



 
 


wds13343-0019b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic