11268+0301 STF 1540 AB (83 Leo)

 
 
11h 26m 45.32s +03° 00' 47.2" P.A. 146.00 sep 28.6 mag 6.55,7.50 Sp G7V dist. 17.75 pc (57.9 l.y.)
 
 
Coord 2000 11268+0301 Discov num STF1540 Comp AB Coord arcsec 2000 11 26 45.32 +03 00 47.2
Date first 1780 Date last 2019 Obs 145
Pa first 145 Pa last 145.7 P.A. Now (θ) 145.7°
Sep first 29.1 Sep last 28.603 Sep. Now (ρ) 28.603"
Mag pri 6.55 Mag sec 7.50 delta mag (ΔM) 0.95 Spectral class G7V (yellow)
Pri motion ra -726 Sec motion ra -728
Pri motion dec +181 Sec motion dec +189
Notes N O T (See Notes, Orbital solution, Parallax indicates physical)
rPM=0.011 (< 0.3, Physical double)
This double is physical.
 
 
11268+0301 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 83 Leo 118864 11 26 45 +03 00 47 STF 1540 AB 2019 145 146 28.6 6.55 7.50 0.95 Y <===
Show 118864 11 26 45 +03 00 47 STF 1540 AC 2016 7 191 205.2 6.55 11.13 4.58
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 83 Leo Constellation Leo SAO 118864 HIP 55846
Tycho2 0267-01191-1 HD 99491 HR 4414 GC 15705
ADS 8162 GL Gl 429A BD BD+03 2502 Flamsteed 83 Leonis
Flamsteed name 83 Leo FK5 1296 Distance 17.75 Distance ly 57.9
 
 
ORBITAL ELEMENTS
 
 
Period (P)320c Periastron (T)5200y Semi-major axis (a)40.76a
Eccentricity (e)0.46 Inclination (i)126.6° Longitude of periastron (ω)112.9°
Node (Ω)164.3° Notesn ReferenceHop1960a
Equinox1900 Last observation1959 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 146.9 28.723
2001 146.9 28.716
2002 146.9 28.710
2003 146.9 28.703
2004 146.9 28.697
2005 146.9 28.690
2006 146.9 28.684
2007 146.9 28.677
2008 146.8 28.671
2009 146.8 28.664
2010 146.8 28.658
2011 146.8 28.651
2012 146.8 28.645
2013 146.8 28.638
2014 146.8 28.632
2015 146.8 28.625
2016 146.8 28.619
2017 146.7 28.612
2018 146.7 28.606
2019 146.7 28.599
2020 146.7 28.593
2021 146.7 28.586
2022 146.7 28.579
2023 146.7 28.573
2024 146.7 28.566
2025 146.6 28.560
2026 146.6 28.553
2027 146.6 28.547
2028 146.6 28.540
2029 146.6 28.534
2030 146.6 28.527


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


 
  


wds11268%2B0301a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic