13343-0019 STF1757AB

 
 
13H 34M 16.38S -00 18' 49.8" P.A. 141.9 SEP 1.7 MAG 7.82,8.75 SP K4III DIST. 26.56 PC (86.64 L.Y.)
 
 
Coord 2000
13343-0019
Discov num
STF1757
Comp
AB
Coord arcsec 2000
13 34 16.38 -00 18 49.8
Date first
1825
Date last
2016
Obs
379
Pa first
10
Pa last
141
P.A. Now (θ)
141.9°
Sep first
1.6
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
7.82
Mag sec
8.75
delta mag (ΔM)
0.93
Spectral class
K4III (yellow-orange)
Pri motion ra
-219
Sec motion ra
-219
Pri motion dec
+021
Sec motion dec
+021
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
13343-0019 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 139416 13343-0019 STF1757 AB 1825 2016 379 142 1.7 7.82 8.75 0.93 Y <===
Show 139416 13343-0019 STF1757 AC 1894 2013 13 135 56.3 7.82 12.51 4.69
Show 139416 13343-0019 STF1757 AD 1921 2013 5 76 144.0 7.82 11.90 4.08
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Virgo
SAO
139416
HIP
66212
Tycho2
4966-00230-1
HD
118036
ADS
8949
Distance
26.56
Distance ly
86.64
last precise pa
140.6
last precise sep
1.718
 
 
ORBITAL ELEMENTS
 
 
Period (P)461y Periastron (T)1932.5y Semi-major axis (a)2.76a
Eccentricity (e)0 Inclination (i)59° Longitude of periastron (ω)
Node (Ω)91.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1986
label rho theta
2000 2.019 125.8
2001 2.000 126.5
2002 1.982 127.3
2003 1.964 128.1
2004 1.946 128.9
2005 1.928 129.7
2006 1.909 130.5
2007 1.891 131.4
2008 1.873 132.3
2009 1.855 133.1
2010 1.837 134.0
2011 1.820 135.0
2012 1.802 135.9
2013 1.785 136.8
2014 1.767 137.8
2015 1.750 138.8
2016 1.733 139.8
2017 1.717 140.8
2018 1.700 141.9
2019 1.684 143.0
2020 1.668 144.1
2021 1.653 145.2
2022 1.638 146.3
2023 1.623 147.4
2024 1.608 148.6
2025 1.594 149.8
2026 1.581 151.0
2027 1.567 152.3
2028 1.555 153.5
2029 1.542 154.8
2030 1.530 156.1

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