10419-7811 HDS 1530

 
 
10h 41m 54.45s -78° 11' 03.3" P.A. 51.00 sep 0.3 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 2021 Obs 14
Pa first 84 Pa last 51 P.A. Now (θ) 59.4°
Sep first 0.4 Sep last 0.263 Sep. Now (ρ) 0.292"
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 Gaia DR2 5200920901121351040
CD CD-77 464 Distance 47.62 Distance ly 155.34
 
 
ORBITAL ELEMENTS
 
 
Period (P)39.07y± 0.67 Periastron (T)2007.88y± 0.1 Semi-major axis (a)0.267a± 0.004
Eccentricity (e)0.547± 0.008 Inclination (i)50.2°± 0.7 Longitude of periastron (ω)132.6°± 1.1
Node (Ω)109.7°± 1.5 Notes ReferenceTok2019c
Equinox Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 109.1 0.300
2001 113.3 0.278
2002 118.3 0.251
2003 124.7 0.220
2004 133.4 0.183
2005 147.1 0.141
2006 171.9 0.102
2007 216.2 0.084
2008 259.0 0.103
2009 284.8 0.131
2010 302.6 0.149
2011 317.4 0.158
2012 330.9 0.164
2013 343.5 0.170
2014 355.3 0.176
2015 6.1 0.185
2016 15.9 0.195
2017 24.6 0.208
2018 32.2 0.221
2019 39.0 0.235
2020 45.0 0.250
2021 50.3 0.264
2022 55.1 0.279
2023 59.4 0.292
2024 63.4 0.305
2025 67.0 0.317
2026 70.4 0.328
2027 73.6 0.337
2028 76.6 0.345
2029 79.5 0.352
2030 82.3 0.357


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



 
 


wds10419-7811b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic