15481-2513 HDS 2226 (HD 141091)

 
 
15h 48m 03.31s -25° 12' 56.0" P.A. 53.00 sep 0.2 mag 7.60,8.49 Sp A0V dist. 151.52 pc (494.26 l.y.)
 
 
Coord 2000 15481-2513 Discov num HDS2226 Comp Coord arcsec 2000 15 48 03.31 -25 12 56.0
Date first 1991 Date last 2022 Obs 10
Pa first 51 Pa last 52.8 P.A. Now (θ) 41.5°
Sep first 0.1 Sep last 0.161 Sep. Now (ρ) 0.155"
Mag pri 7.60 Mag sec 8.49 delta mag (ΔM) 0.89 Spectral class A0V (white)
Pri motion ra -019 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 141091 Constellation Scorpius SAO 183802 HIP 77399
Tycho2 6782-02146-1 Gaia DR2 6236641647392716544 HD 141091 GC 21225
CD CD-2412296 CP CP-24 5561 Distance 151.52 Distance ly 494.26
 
 
ORBITAL ELEMENTS
 
 
Period (P)30.66y± 0.86 Periastron (T)2010.96± 0.25 Semi-major axis (a)0.1151a± 0.0086
Eccentricity (e)0.7± 0.057 Inclination (i)143.4°± 6.8 Longitude of periastron (ω)134.8°± 17
Node (Ω)0.7°± 15.2 Notes ReferenceTok2024b
Equinox2000 Last observation2024 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 27.3 0.175
2001 24.4 0.171
2002 21.2 0.166
2003 17.8 0.159
2004 14.1 0.150
2005 9.8 0.139
2006 4.8 0.126
2007 358.4 0.110
2008 349.5 0.091
2009 335.0 0.067
2010 302.0 0.040
2011 216.1 0.032
2012 156.3 0.047
2013 126.0 0.062
2014 107.0 0.076
2015 93.9 0.090
2016 84.2 0.103
2017 76.6 0.115
2018 70.5 0.126
2019 65.2 0.136
2020 60.7 0.144
2021 56.6 0.152
2022 52.9 0.159
2023 49.6 0.165
2024 46.4 0.170
2025 43.4 0.174
2026 40.5 0.177
2027 37.7 0.178
2028 34.9 0.179
2029 32.1 0.178
2030 29.3 0.177
2031 26.3 0.174
2032 23.3 0.169
2033 20.1 0.163
2034 16.6 0.156
2035 12.7 0.147
2036 8.2 0.135
2037 2.8 0.121
2038 355.7 0.104
2039 345.5 0.083
2040 327.3 0.058
2041 278.9 0.033
2042 190.0 0.037
2043 144.1 0.052
2044 118.6 0.067
2045 102.0 0.081
2046 90.3 0.094
2047 81.5 0.107
2048 74.4 0.118
2049 68.6 0.129
2050 63.6 0.139


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds15481-2513b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic