13372-6142 I 365 AB

 
 
13h 37m 12.20s -61° 41' 31.7" P.A. 154.00 sep 0.4 mag 5.98,7.22 Sp F6V dist. 35.73 pc (116.55 l.y.)
 
 
Coord 2000 13372-6142 Discov num I   365 Comp AB Coord arcsec 2000 13 37 12.20 -61 41 31.7
Date first 1900 Date last 2019 Obs 78
Pa first 234 Pa last 153.7 P.A. Now (θ) 139.4°
Sep first 0.3 Sep last 0.361 Sep. Now (ρ) 0.377"
Mag pri 5.98 Mag sec 7.22 delta mag (ΔM) 1.24 Spectral class F6V (yellow-white)
Pri motion ra +154 Sec motion ra +154
Pri motion dec -111 Sec motion dec -111
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
13372-6142 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 252387 13 37 12 -61 41 32 I 365 AB 2019 78 154 0.4 5.98 7.22 1.24 Y <===
Show HD 118261 252387 13 37 12 -61 41 32 I 365 AB,C 2016 9 248 51.6 5.72 10.91 5.19
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Centaurus SAO 252387 HIP 66438 Tycho2 8991-04847-1
HD 118261 HR 5113 GC 18384 CP CP-61 3841
Distance 35.73 Distance ly 116.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)35y Periastron (T)1967.5y Semi-major axis (a)0.45a
Eccentricity (e)0.78 Inclination (i)117° Longitude of periastron (ω)94°
Node (Ω)71° Notesn ReferenceSod1999
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 85.6 0.279
2001 76.1 0.218
2002 52.1 0.104
2003 265.2 0.111
2004 242.1 0.212
2005 231.6 0.261
2006 223.8 0.290
2007 217.2 0.308
2008 211.2 0.320
2009 205.6 0.329
2010 200.2 0.335
2011 195.0 0.339
2012 189.9 0.343
2013 184.9 0.346
2014 180.0 0.349
2015 175.2 0.352
2016 170.5 0.354
2017 165.8 0.357
2018 161.2 0.360
2019 156.7 0.364
2020 152.2 0.367
2021 147.9 0.370
2022 143.6 0.374
2023 139.4 0.377
2024 135.3 0.380
2025 131.2 0.383
2026 127.2 0.384
2027 123.2 0.385
2028 119.2 0.385
2029 115.2 0.382
2030 111.1 0.378


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



 
 


wds13372-6142a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic