14493-1409 BU  106AB (Mu Lib)

 
 
14h 49m 19.09s -14 08' 56.3" P.A. 7.10 sep 1.9 mag 5.61,6.62 Sp A1pSrCrEu dist. 72.94 pc (237.93 l.y.)
 
 
Coord 2000
14493-1409
Discov num
BU  106
Comp
AB
Coord arcsec 2000
14 49 19.09 -14 08 56.3
Date first
1873
Date last
2019
Obs
111
Pa first
340
Pa last
7
P.A. Now (θ)
7.1°
Sep first
1.3
Sep last
1.9
Sep. Now (ρ)
1.95"
Mag pri
5.61
Mag sec
6.62
delta mag (ΔM)
1.01
Spectral class
A1pSrCrEu (white)
Pri motion ra
-073
Sec motion ra
-073
Pri motion dec
-026
Sec motion dec
-026
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
14493-1409 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Mu Lib 158821 14493-1409 BU 106 AB 1873 2019 111 7 2.0 5.61 6.62 1.01 Y <===
Show 158821 14493-1409 BU 106 AC 1889 2000 7 294 12.9 5.61 14.70 9.09
Show 158821 14493-1409 BU 106 AD 1889 2000 8 168 25.7 5.61 14.10 8.49
Show 158821 14493-1409 BU 106 AE 1878 2015 11 232 26.6 5.61 12.60 6.99
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
7.3
Precise sep
1.939
Name
Mu Lib
Constellation
Libra
SAO
158821
HIP
72489
Tycho2
5590-00994-1
Gaia DR2
18378830080
HD
130559
HR
5523
GC
19938
ADS
9396
BD
BD-13 3986
Bayer
Mu Librae
Bayer name
Mu Lib
Flamsteed
7 Librae
Flamsteed name
7 Lib
Distance
72.94
Distance ly
237.93
last precise pa
7.3
last precise sep
1.939
 
 
ORBITAL ELEMENTS
 
 
Period (P)614y Periastron (T)1655y Semi-major axis (a)1.587a
Eccentricity (e)0.65 Inclination (i)52.9° Longitude of periastron (ω)116.5°
Node (Ω)46.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 1.921 3.4
2001 1.923 3.5
2002 1.925 3.7
2003 1.926 3.9
2004 1.928 4.1
2005 1.930 4.3
2006 1.931 4.4
2007 1.933 4.6
2008 1.935 4.8
2009 1.936 5.0
2010 1.938 5.2
2011 1.939 5.4
2012 1.941 5.5
2013 1.942 5.7
2014 1.944 5.9
2015 1.945 6.1
2016 1.947 6.2
2017 1.948 6.4
2018 1.949 6.6
2019 1.951 6.8
2020 1.952 7.0
2021 1.953 7.1
2022 1.954 7.3
2023 1.956 7.5
2024 1.957 7.7
2025 1.958 7.8
2026 1.959 8.0
2027 1.960 8.2
2028 1.961 8.4
2029 1.962 8.6
2030 1.963 8.7

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






wds14493-1409a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14493-1409 BU 106 AB 2007 116 6 1.9 5.61 6.62 A1pSrCrEu N D 144919.09-140856.3
14493-1409 BU 106 AB 2008 117 2 1.9 5.61 6.62 A1pSrCrEu N D 144919.09-140856.3
14493-1409 BU 106 AB 2010 108 6 1.9 5.61 6.62 A1pSrCrEu N D 144919.09-140856.3
14493-1409 BU 106 AB 2016 109 4 2.0 5.61 6.62 A1pSrCrEu NO 144919.09-140856.3
14493-1409 BU 106 AB 2019 111 7 1.9 5.61 6.62 A1pSrCrEu NO 144919.09-140856.3

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