13194-3957 RST1712

 
 
13h 19m 24.29s -39 57' 01.2" P.A. 266.20 sep 0.3 mag 10.86,11.42 dist. 62.58 pc (204.14 l.y.)
 
 
Coord 2000
13194-3957
Discov num
RST1712
Comp
Coord arcsec 2000
13 19 24.29 -39 57 01.2
Date first
1935
Date last
2017
Obs
9
Pa first
63
Pa last
100
P.A. Now (θ)
266.2°
Sep first
0.8
Sep last
0.4
Sep. Now (ρ)
0.34"
Mag pri
10.86
Mag sec
11.42
delta mag (ΔM)
0.56
Spectral class
Pri motion ra
+060
Sec motion ra
Pri motion dec
-121
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
100.2
Precise sep
0.353
Constellation
Centaurus
HIP
64999
Tycho2
7778-00426-1
Gaia DR2
31747033216
CD
CD-39 8179
Distance
62.58
Distance ly
204.14
last precise pa
100.2
last precise sep
0.353
 
 
ORBITAL ELEMENTS
 
 
Period (P)219.4y Periastron (T)2021.85y Semi-major axis (a)0.59a
Eccentricity (e)0.396 Inclination (i)160.1° Longitude of periastron (ω)237.8°
Node (Ω)138.8° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2017
label rho theta
2000 0.451 335.8
2001 0.445 333.4
2002 0.438 330.8
2003 0.432 328.2
2004 0.426 325.6
2005 0.419 322.8
2006 0.413 320.0
2007 0.407 317.0
2008 0.401 314.0
2009 0.395 310.9
2010 0.389 307.7
2011 0.384 304.4
2012 0.378 301.0
2013 0.373 297.5
2014 0.368 293.9
2015 0.363 290.2
2016 0.358 286.4
2017 0.354 282.5
2018 0.351 278.5
2019 0.348 274.5
2020 0.345 270.4
2021 0.343 266.2
2022 0.341 262.0
2023 0.340 257.7
2024 0.340 253.5
2025 0.340 249.2
2026 0.341 244.9
2027 0.342 240.7
2028 0.345 236.5
2029 0.347 232.4
2030 0.351 228.3

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






wds13194-3957b.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
13194-3957 RST1712 1991 8 355 0.5 10.86 11.42 O 131924.29-395701.2
13194-3957 RST1712 2017 9 100 0.4 10.86 11.42 O 131924.29-395701.2

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