13008+1223 BEU 16 AB (DT Vir)

13h 00m 46.58s +12° 22' 32.6" P.A. 60.00 sep 0.5 mag 9.75, Sp M0.5 dist. 11.69 pc (38.13 l.y.)

Coord 2000 13008+1223 Discov num BEU  16 Comp AB Coord arcsec 2000 13 00 46.58 +12 22 32.6
Date first 2000 Date last 2015 Obs 16
Pa first 81 Pa last 60 P.A. Now (θ) 204.1°
Sep first 0.5 Sep last 0.525 Sep. Now (ρ) 0.311"
Mag pri 9.75 Mag sec delta mag (ΔM) Spectral class M0.5 (red)
Pri motion ra -619 Sec motion ra
Pri motion dec -017 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



13008+1223 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show DT Vir 13 00 47 +12 22 33 BEU 16 AB 2015 16 60 0.5 9.75 Y <===
Show 13 00 47 +12 22 33 GDM 1 AC 2008 3 220 102.1 9.75 25.00 15.25


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Var name DT Vir Constellation Virgo HIP 63510 Tycho2 0886-00839-1
GL Gl 494 BD BD+13 2618 Distance 11.69 Distance ly 38.13




ORBITAL ELEMENTS

Period (P)13.709y± 0.037 Periastron (T)59365d (2021.412y)± 18 Semi-major axis (a)427.73m± 0.44
Eccentricity (e)0.2436± 0.0012 Inclination (i)130.79°± 0.2 Longitude of periastron (ω)158.81°± 0.62
Node (Ω)56.13°± 0.17 Notesn ReferenceMnA2019
Equinox Last observation Grade3(1=Definitive, 9=Indet.)

label theta rho
2000 80.9 0.474
2001 68.6 0.516
2002 57.4 0.522
2003 45.7 0.489
2004 30.9 0.416
2005 7.9 0.317
2006 326.3 0.242
2007 275.9 0.267
2008 241.4 0.323
2009 213.0 0.321
2010 179.7 0.287
2011 142.0 0.292
2012 111.8 0.352
2013 91.5 0.427
2014 77.1 0.489
2015 65.3 0.522
2016 54.2 0.517
2017 41.8 0.472
2018 25.4 0.389
2019 358.2 0.288
2020 310.8 0.238
2021 264.4 0.287
2022 233.1 0.329
2023 204.1 0.311
2024 168.7 0.282
2025 132.0 0.305
2026 105.0 0.374
2027 86.9 0.448
2028 73.5 0.502
2029 62.1 0.524
2030 50.8 0.508


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



 
 


wds13008%2B1223a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic