12059-4951 RST 4958 Aa,Ab

 
 
12h 05m 55.32s -49° 51' 13.7" P.A. 359.00 sep 0.2 mag 10.00,10.00 Sp G0/2V
 
 
Coord 2000 12059-4951 Discov num RST4958 Comp Aa,Ab Coord arcsec 2000 12 05 55.32 -49 51 13.7
Date first 1942 Date last 2020 Obs 11
Pa first 34 Pa last 358.9 P.A. Now (θ) 358.9°
Sep first 0.2 Sep last 0.196 Sep. Now (ρ) 0.196"
Mag pri 10.00 Mag sec 10.00 delta mag (ΔM) 0 Spectral class G0/2V (yellow)
Pri motion ra +032 Sec motion ra
Pri motion dec -023 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
12059-4951 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 223213 12 05 55 -49 51 14 RST 4958 Aa,Ab 2020 11 359 0.2 10.00 10.00 0.00 Y <===
Show HD 105080 223213 12 05 55 -49 51 14 HJ 4494 AB 2015 14 70 12.9 9.21 9.21 0.00
Show 223213 12 05 55 -49 51 14 HJ 4494 AC 2015 11 349 24.7 9.21 10.69 1.48
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Centaurus SAO 223213 Tycho2 8237-02652-1 Gaia DR2 6129537910506753536
HD 105080
 
 
ORBITAL ELEMENTS
 
 
Period (P)91.6y Periastron (T)1999.15y Semi-major axis (a)0.176a
Eccentricity (e)0.4 Inclination (i)40.4° Longitude of periastron (ω)224.1°
Node (Ω)5.4° Notes ReferenceTok2018h
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 230.3 0.091
2001 241.0 0.088
2002 252.3 0.086
2003 263.8 0.086
2004 275.0 0.088
2005 285.6 0.092
2006 295.2 0.097
2007 303.8 0.103
2008 311.2 0.110
2009 317.8 0.118
2010 323.6 0.125
2011 328.7 0.133
2012 333.2 0.141
2013 337.3 0.148
2014 340.9 0.156
2015 344.3 0.163
2016 347.4 0.169
2017 350.3 0.175
2018 352.9 0.181
2019 355.4 0.187
2020 357.8 0.192
2021 0.197
2022 2.2 0.201
2023 4.2 0.205
2024 6.2 0.209
2025 8.1 0.212
2026 10.0 0.215
2027 11.8 0.218
2028 13.6 0.220
2029 15.3 0.222
2030 17.0 0.224


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



 
 


wds12059-4951a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic