12463-6806 R   207AB (Bet Mus)

 
 
12H 46M 16.87S -68 06' 29.1" P.A. 61.9 SEP 0.85 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
2016
Obs
87
Pa first
317
Pa last
53
P.A. Now (θ)
61.9°
Sep first
0.5
Sep last
1.1
Sep. Now (ρ)
0.85"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 252019 12463-6806 RIZ 5 Aa,Ab 2010 2010 1 121 0.0 3.10 6.60 3.50
Show Bet Mus 252019 12463-6806 R 207 AB 1880 2016 87 62 0.8 3.52 3.98 0.46 Y <===
Show 252019 12463-6806 RIZ 5 AC 2000 2000 1 35 94.8 3.07 15.90 12.83
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Bet Mus
Constellation
Musca
SAO
252019
HIP
62322
HD
110879
HR
4844
GC
17348
CP
CP-67 2064
Bayer
Beta Muscae
Bayer name
Bet Mus
Distance
104.71
Distance ly
341.56
last precise pa
52.7
last precise sep
1.12
 
 
ORBITAL ELEMENTS
 
 
Period (P)194.276y± 2.65 Periastron (T)1857.504y± 3.79 Semi-major axis (a)0.969a± 0.068
Eccentricity (e)0.598± 0.057 Inclination (i)37.1°± 6.5 Longitude of periastron (ω)209°± 4.1
Node (Ω)349.4°± 4.2 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2007
label rho theta
2000 1.110 42.1
2001 1.096 43.0
2002 1.083 43.9
2003 1.069 44.9
2004 1.054 45.9
2005 1.040 46.9
2006 1.025 47.9
2007 1.011 49.0
2008 0.996 50.1
2009 0.981 51.3
2010 0.965 52.4
2011 0.950 53.6
2012 0.934 54.9
2013 0.918 56.2
2014 0.903 57.5
2015 0.887 58.9
2016 0.870 60.4
2017 0.854 61.9
2018 0.838 63.4
2019 0.821 65.0
2020 0.805 66.7
2021 0.788 68.5
2022 0.772 70.3
2023 0.755 72.2
2024 0.739 74.2
2025 0.722 76.3
2026 0.706 78.5
2027 0.690 80.8
2028 0.673 83.1
2029 0.657 85.7
2030 0.642 88.3

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic