21114-5220 HU 1626 (BR Ind)

 
 
21h 11m 22.79s -52° 20' 21.3" P.A. 101.00 sep 0.8 mag 7.27,8.82 Sp F8V dist. 48.43 pc (157.98 l.y.)
 
 
Coord 2000 21114-5220 Discov num HU 1626 Comp Coord arcsec 2000 21 11 22.79 -52 20 21.3
Date first 1914 Date last 2023 Obs 55
Pa first 208 Pa last 101 P.A. Now (θ) 103.5°
Sep first 0.6 Sep last 0.839 Sep. Now (ρ) 0.882"
Mag pri 7.27 Mag sec 8.82 delta mag (ΔM) 1.55 Spectral class F8V (yellow-white)
Pri motion ra -024 Sec motion ra -024
Pri motion dec +030 Sec motion dec +030
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name BR Ind Constellation Indus SAO 246896 HIP 104604
Tycho2 8434-00140-1 Gaia DR2 6464757874560720896 HD 201427 GC 29589
CP CP-5211827 Distance 48.43 Distance ly 157.98
 
 
ORBITAL ELEMENTS
 
 
Period (P)155.9y Periastron (T)2049.18y Semi-major axis (a)0.841a
Eccentricity (e)0.61 Inclination (i)149.9° Longitude of periastron (ω)160°
Node (Ω)127° Notesn ReferenceTok2020g
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 125.4 1.218
2001 124.7 1.208
2002 123.9 1.197
2003 123.1 1.186
2004 122.3 1.175
2005 121.5 1.163
2006 120.7 1.151
2007 119.8 1.138
2008 118.9 1.125
2009 118.0 1.111
2010 117.1 1.096
2011 116.2 1.082
2012 115.2 1.066
2013 114.2 1.051
2014 113.2 1.034
2015 112.1 1.017
2016 111.0 1.000
2017 109.9 0.982
2018 108.7 0.964
2019 107.5 0.945
2020 106.2 0.925
2021 104.8 0.905
2022 103.4 0.884
2023 102.0 0.862
2024 100.4 0.840
2025 98.8 0.818
2026 97.1 0.795
2027 95.2 0.771
2028 93.3 0.747
2029 91.2 0.722
2030 89.0 0.696
2031 86.6 0.670
2032 84.0 0.644
2033 81.2 0.617
2034 78.1 0.589
2035 74.7 0.562
2036 71.0 0.534
2037 66.8 0.506
2038 62.2 0.479
2039 57.0 0.452
2040 51.2 0.426
2041 44.7 0.401
2042 37.3 0.379
2043 29.0 0.359
2044 19.9 0.342
2045 10.0 0.330
2046 359.4 0.322
2047 348.4 0.318
2048 337.3 0.318
2049 326.4 0.322
2050 315.8 0.329


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds21114-5220d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic