10474+0236 HDS 1542 AB

 
 
10h 47m 24.29s +02 35' 32.0" P.A. 82.00 sep 0.5 mag 12.91,13.20 Sp M1 dist. 41.96 pc (136.87 l.y.)
 
 
Coord 2000 10474+0236 Discov num HDS1542 Comp AB Coord arcsec 2000 10 47 24.29 +02 35 32.0
Date first 1991 Date last 2021 Obs 11
Pa first 219 Pa last 81.7 P.A. Now (θ) 81.7°
Sep first 0.4 Sep last 0.489 Sep. Now (ρ) 0.489"
Mag pri 12.91 Mag sec 13.20 delta mag (ΔM) 0.29 Spectral class M1 (red)
Pri motion ra +180 Sec motion ra
Pri motion dec +030 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
10474+0236 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 10 47 24 +02 35 32 HDS 1542 AB 2021 11 82 0.5 12.91 13.20 0.29 Y <===
Show 10 47 24 +02 35 32 TOK 542 AC 2015 7 226 756.0 12.28 14.84 2.56
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sextans HIP 52774 Gaia DR2 3809351492919091968 Distance 41.96
Distance ly 136.87
 
 
ORBITAL ELEMENTS
 
 
Period (P)121.7y± 8.2 Periastron (T)2100.6y± 8.2 Semi-major axis (a)0.518a± 0.031
Eccentricity (e)0.412± 0.069 Inclination (i)60.5°± 2.7 Longitude of periastron (ω)250.4°± 6.8
Node (Ω)235°± 3.4 Notes ReferenceHor2020
Equinox2000 Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 235.5 0.503
2001 236.9 0.513
2002 238.2 0.523
2003 239.5 0.531
2004 240.7 0.538
2005 241.9 0.544
2006 243.1 0.550
2007 244.3 0.554
2008 245.5 0.558
2009 246.6 0.560
2010 247.7 0.562
2011 248.8 0.564
2012 250.0 0.564
2013 251.1 0.564
2014 252.2 0.563
2015 253.3 0.562
2016 254.5 0.560
2017 255.6 0.558
2018 256.7 0.555
2019 257.9 0.552
2020 259.1 0.548
2021 260.3 0.543
2022 261.5 0.539
2023 262.7 0.534
2024 264.0 0.528
2025 265.3 0.523
2026 266.6 0.517
2027 268.0 0.510
2028 269.3 0.504
2029 270.8 0.497
2030 272.2 0.490


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



 
 


wds10474%2B0236a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic