12463-6806 R 207 AB (Bet Mus)

 
 
12h 46m 16.87s -68° 06' 29.1" P.A. 58.00 sep 1.0 mag 3.52,3.98 Sp B2.5V dist. 104.71 pc (341.56 l.y.)
 
 
Coord 2000 12463-6806 Discov num R   207 Comp AB Coord arcsec 2000 12 46 16.87 -68 06 29.1
Date first 1880 Date last 2019 Obs 89
Pa first 317 Pa last 57.9 P.A. Now (θ) 59.8°
Sep first 0.5 Sep last 0.956 Sep. Now (ρ) 0.943"
Mag pri 3.52 Mag sec 3.98 delta mag (ΔM) 0.46 Spectral class B2.5V (blue-white)
Pri motion ra -040 Sec motion ra
Pri motion dec -010 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
12463-6806 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 252019 12 46 17 -68 06 29 RIZ 5 Aa,Ab 2010 1 121 0.0 3.10 6.60 3.50
Show Bet Mus 252019 12 46 17 -68 06 29 R 207 AB 2019 89 58 1.0 3.52 3.98 0.46 Y <===
Show 252019 12 46 17 -68 06 29 RIZ 5 AC 2015 5 36 95.1 3.07 15.90 12.83
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Bet Mus Constellation Musca SAO 252019 HIP 62322
Tycho2 9228-03047-1 Gaia DR2 5855802671032914944 HD 110879 HR 4844
GC 17348 CP CP-67 2064 Bayer Beta Muscae Bayer name Bet Mus
Distance 104.71 Distance ly 341.56 Bayer greek β Mus
 
 
ORBITAL ELEMENTS
 
 
Period (P)188y± 16.5 Periastron (T)1874.2y± 6.5 Semi-major axis (a)1.16a± 0.23
Eccentricity (e)0.79± 0.13 Inclination (i)53.3°± 9.9 Longitude of periastron (ω)72.5°± 1.3
Node (Ω)138.6°± 12.1 Notesn ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 40.0 1.150
2001 40.7 1.143
2002 41.4 1.135
2003 42.1 1.127
2004 42.9 1.118
2005 43.7 1.110
2006 44.4 1.102
2007 45.2 1.093
2008 46.0 1.085
2009 46.8 1.076
2010 47.6 1.067
2011 48.5 1.058
2012 49.3 1.049
2013 50.2 1.040
2014 51.1 1.031
2015 52.0 1.022
2016 52.9 1.012
2017 53.8 1.003
2018 54.8 0.993
2019 55.7 0.983
2020 56.7 0.973
2021 57.7 0.963
2022 58.7 0.953
2023 59.8 0.943
2024 60.9 0.933
2025 62.0 0.923
2026 63.1 0.912
2027 64.2 0.901
2028 65.4 0.891
2029 66.6 0.880
2030 67.9 0.869


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



 
 


wds12463-6806d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic