10419-7811 HDS1530

 
 
10h 41m 54.45s -78 11' 03.3" P.A. 26.2 sep 0.21 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
2016
Obs
11
Pa first
84
Pa last
18
P.A. Now (θ)
26.2°
Sep first
0.4
Sep last
0.2
Sep. Now (ρ)
0.21"
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
 
 
Precise pa
17.5
Precise sep
0.198
Constellation
Chamaeleon
HIP
52351
Tycho2
9414-00744-1
CD
CD-77 464
Distance
47.62
Distance ly
155.34
last precise pa
17.5
last precise sep
0.198
 
 
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





wds10419-7811a.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
10419-7811 HDS1530 1991 1 84 0.4 10.31 11.08 K5V 104154.45-781103.3
10419-7811 HDS1530 2009 2 134 0.1 10.31 11.08 K5V 104154.45-781103.3
10419-7811 HDS1530 2010 4 125 0.2 10.31 11.08 K5V 104154.45-781103.3
10419-7811 HDS1530 2012 7 152 0.2 10.31 11.08 K5V 104154.45-781103.3
10419-7811 HDS1530 2013 8 165 0.2 10.31 11.08 K5V 104154.45-781103.3
10419-7811 HDS1530 2014 9 177 0.2 10.31 11.08 K5V O 104154.45-781103.3
10419-7811 HDS1530 2015 10 187 0.2 10.31 11.08 K5V O 104154.45-781103.3
10419-7811 HDS1530 2016 11 18 0.2 10.31 11.08 K5V O 104154.45-781103.3

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