13040-1738 BU 798 AB (HD 113460)

13h 04m 02.74s -17° 37' 29.9" P.A. 180.00 sep 0.3 mag 9.16,9.67 Sp K0V dist. 58 pc (189.2 l.y.)

Coord 2000 13040-1738 Discov num BU  798 Comp AB Coord arcsec 2000 13 04 02.74 -17 37 29.9
Date first 1881 Date last 2019 Obs 23
Pa first 174 Pa last 179.8 P.A. Now (θ) 182.4°
Sep first 0.5 Sep last 0.29 Sep. Now (ρ) 0.182"
Mag pri 9.16 Mag sec 9.67 delta mag (ΔM) 0.51 Spectral class K0V (yellow-orange)
Pri motion ra +029 Sec motion ra
Pri motion dec -158 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



13040-1738 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 113460 157692 13 04 03 -17 37 30 BU 798 AB 2019 23 180 0.3 9.16 9.67 0.51 Y <===
Show 157692 13 04 03 -17 37 30 UC 2465 AC 2016 3 204 121.9 9.16 12.92 3.76


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 113460 Constellation Virgo SAO 157692 HIP 63754
Tycho2 6115-00154-1 Gaia DR2 3511727649629197568 HD 113460 ADS 8764
BD BD-16 3591 Distance 58 Distance ly 189.2




ORBITAL ELEMENTS

Period (P)60.2y Periastron (T)1980.3y Semi-major axis (a)0.352a
Eccentricity (e)0.431 Inclination (i)84.8° Longitude of periastron (ω)209.6°
Node (Ω)170.9° Notesn ReferenceZir2012b
Equinox2000 Last observation2009 Grade3(1=Definitive, 9=Indet.)

label theta rho
2000 170.9 0.460
2001 171.2 0.467
2002 171.5 0.472
2003 171.8 0.475
2004 172.0 0.476
2005 172.3 0.475
2006 172.6 0.472
2007 172.8 0.467
2008 173.1 0.461
2009 173.4 0.453
2010 173.7 0.443
2011 174.0 0.431
2012 174.4 0.418
2013 174.7 0.404
2014 175.1 0.388
2015 175.5 0.370
2016 176.0 0.351
2017 176.5 0.331
2018 177.1 0.309
2019 177.8 0.286
2020 178.6 0.261
2021 179.6 0.236
2022 180.8 0.210
2023 182.4 0.182
2024 184.6 0.154
2025 187.7 0.125
2026 192.8 0.096
2027 202.3 0.067
2028 223.9 0.043
2029 272.0 0.033
2030 311.9 0.049


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



 
 


wds13040-1738a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic