12250-0414 TOK 400 AB (HD 108081)

12h 24m 58.94s -04° 13' 32.3" P.A. 166.00 sep 0.1 mag 8.10,11.90 Sp G5V dist. 46.62 pc (152.07 l.y.)

Coord 2000 12250-0414 Discov num TOK 400 Comp AB Coord arcsec 2000 12 24 58.94 -04 13 32.3
Date first 2014 Date last 2021 Obs 10
Pa first 71 Pa last 165.9 P.A. Now (θ) 165.9°
Sep first 0.2 Sep last 0.117 Sep. Now (ρ) 0.117"
Mag pri 8.10 Mag sec 11.90 delta mag (ΔM) 3.8 Spectral class G5V (yellow)
Pri motion ra -124 Sec motion ra
Pri motion dec -210 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



12250-0414 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 108081 138762 12 24 59 -04 13 32 TOK 400 AB 2021 10 166 0.1 8.10 11.90 3.80 Y <===
Show 138762 12 24 59 -04 13 32 NSN 123 AC 2015 2 190 6.2 8.79 15.92 7.13


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 108081 Constellation Virgo SAO 138762 HIP 60574
Tycho2 4944-00750-1 HD 108081 GC 16925 GL NN 3723
BD BD-03 3280 Distance 46.62 Distance ly 152.07




ORBITAL ELEMENTS

Period (P)27.9y± 6.4 Periastron (T)2018.65y± 0.05 Semi-major axis (a)0.238a± 0.035
Eccentricity (e)0.656± 0.054 Inclination (i)129.5°± 2.4 Longitude of periastron (ω)173.8°± 2.8
Node (Ω)98.3°± 3.5 Notesn ReferenceTok2021f
Equinox Last observation2021 Grade4(1=Definitive, 9=Indet.)

label theta rho
2000 114.0 0.343
2001 111.2 0.361
2002 108.6 0.375
2003 106.2 0.385
2004 103.9 0.391
2005 101.6 0.393
2006 99.3 0.392
2007 97.0 0.386
2008 94.6 0.377
2009 92.0 0.364
2010 89.2 0.346
2011 86.1 0.324
2012 82.5 0.297
2013 78.1 0.265
2014 72.3 0.228
2015 63.9 0.184
2016 49.9 0.136
2017 20.3 0.089
2018 320.2 0.073
2019 264.1 0.082
2020 210.3 0.082
2021 170.2 0.111
2022 149.6 0.154
2023 138.0 0.196
2024 130.4 0.235
2025 124.8 0.269
2026 120.5 0.299
2027 116.9 0.324
2028 113.7 0.345
2029 110.9 0.363
2030 108.4 0.376


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



 
 


wds12250-0414b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic