11446-4925 RST9004AB (V838 Cen)

 
 
11H 44M 38.59S -49 25' 02.4" P.A. 250 SEP 0.28 MAG 9.35,10.64 SP K0V+K5V DIST. 48.57 PC (158.44 L.Y.)
 
 
Coord 2000
11446-4925
Discov num
RST9004
Comp
AB
Coord arcsec 2000
11 44 38.59 -49 25 02.4
Date first
1929
Date last
2015
Obs
20
Pa first
349
Pa last
231
P.A. Now (θ)
250°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.28"
Mag pri
9.35
Mag sec
10.64
delta mag (ΔM)
1.29
Spectral class
K0V+K5V (yellow-orange/yellow-orange)
Pri motion ra
-139
Sec motion ra
Pri motion dec
-049
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
11446-4925 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show V838 Cen 222993 11446-4925 RST9004 AB 1929 2015 20 250 0.3 9.35 10.64 1.29 Y <===
Show 222993 11446-4925 RST9004 AB,C 1930 2000 5 29 14.2 9.11 13.50 4.39
Show 222993 11446-4925 DAM 560 AB,D 1998 2000 3 143 8.5 9.11 14.00 4.89
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V838 Cen
Constellation
Centaurus
SAO
222993
HIP
57269
Tycho2
8223-00048-1
HD
102077
CD
CD-48 6770
CP
CP-48 4174
Distance
48.57
Distance ly
158.44
last precise pa
230.6
last precise sep
0.248
 
 
ORBITAL ELEMENTS
 
 
Period (P)35.5y± 0.3 Periastron (T)55152d (2009.877y)± 5 Semi-major axis (a)306.2m± 1.3
Eccentricity (e)0.409± 0.003 Inclination (i)28.5°± 0.9 Longitude of periastron (ω)348.6°± 0.5
Node (Ω)140°± 0.7 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.359 346.3
2001 0.339 352.5
2002 0.315 359.7
2003 0.290 8.0
2004 0.264 17.9
2005 0.238 30.1
2006 0.213 45.1
2007 0.194 63.7
2008 0.182 85.4
2009 0.178 109.1
2010 0.181 132.8
2011 0.186 155.6
2012 0.194 176.8
2013 0.205 196.1
2014 0.221 213.1
2015 0.240 227.5
2016 0.261 239.7
2017 0.284 250.0
2018 0.306 258.8
2019 0.327 266.4
2020 0.347 273.1
2021 0.365 279.1
2022 0.382 284.6
2023 0.396 289.6
2024 0.407 294.3
2025 0.417 298.8
2026 0.424 303.2
2027 0.428 307.4
2028 0.430 311.5
2029 0.429 315.6
2030 0.426 319.8

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