10419-7811 HDS1530

 
 
10H 41M 54.45S -78 11' 03.3" P.A. 19.5 SEP 0.2 MAG 10.31,11.08 SP K5V DIST. 47.62 PC (155.34 L.Y.)
 
 
Coord 2000
10419-7811
Discov num
HDS1530
Comp
Coord arcsec 2000
10 41 54.45 -78 11 03.3
Date first
1991
Date last
2015
Obs
10
Pa first
84
Pa last
7
P.A. Now (θ)
19.5°
Sep first
0.4
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
10.31
Mag sec
11.08
delta mag (ΔM)
0.77
Spectral class
K5V (yellow-orange)
Pri motion ra
-140
Sec motion ra
Pri motion dec
+102
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Chamaeleon
HIP
52351
Tycho2
9414-00744-1
CD
CD-77 464
Distance
47.62
Distance ly
155.34
last precise pa
7.1
last precise sep
0.186
 
 
ORBITAL ELEMENTS
 
 
Period (P)43.48y Periastron (T)2007.33y Semi-major axis (a)0.277a
Eccentricity (e)0.637 Inclination (i)55.2° Longitude of periastron (ω)121.2°
Node (Ω)114.9° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.293 107.1
2001 0.272 110.6
2002 0.247 114.7
2003 0.215 120.0
2004 0.177 127.3
2005 0.131 139.1
2006 0.081 165.4
2007 0.062 230.6
2008 0.099 278.3
2009 0.131 299.5
2010 0.149 313.7
2011 0.159 325.5
2012 0.165 336.1
2013 0.171 346.0
2014 0.176 355.4
2015 0.183 4.0
2016 0.190 12.1
2017 0.199 19.5
2018 0.208 26.2
2019 0.219 32.4
2020 0.229 37.9
2021 0.241 43.0
2022 0.252 47.6
2023 0.263 51.8
2024 0.274 55.7
2025 0.285 59.3
2026 0.295 62.6
2027 0.305 65.7
2028 0.314 68.6
2029 0.322 71.4
2030 0.330 74.0

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