15088-4517 SEE 219 AB (Lam Lup)

 
 
15h 08m 50.63s -45° 16' 47.3" P.A. 143.00 sep 0.1 mag 4.43,5.23 Sp B3V dist. 238.1 pc (776.68 l.y.)
 
 
Coord 2000 15088-4517 Discov num SEE 219 Comp AB Coord arcsec 2000 15 08 50.63 -45 16 47.3
Date first 1897 Date last 2019 Obs 72
Pa first 160 Pa last 142.6 P.A. Now (θ) 154.6°
Sep first 0.6 Sep last 0.139 Sep. Now (ρ) 0.154"
Mag pri 4.43 Mag sec 5.23 delta mag (ΔM) 0.8 Spectral class B3V (blue-white)
Pri motion ra -011 Sec motion ra
Pri motion dec -022 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
15088-4517 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Lam Lup 225483 15 08 51 -45 16 47 SEE 219 AB 2019 72 143 0.1 4.43 5.23 0.80 Y <===
Show 225483 15 08 51 -45 16 47 TOK 8 AC 1997 1 229 6.6 4.54 17.40 12.86
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Lam Lup Constellation Lupus SAO 225483 HIP 74117
Tycho2 8293-03877-1 Gaia DR2 5907202503153332224 HD 133955 HR 5626
GC 20356 CD CD-44 9889 CP CP-44 7186 Bayer Lambda Lupi
Bayer name Lam Lup Distance 238.1 Distance ly 776.68 Bayer greek λ Lup
 
 
ORBITAL ELEMENTS
 
 
Period (P)70.8y± 0.8 Periastron (T)1997.907y± 0.105 Semi-major axis (a)0.2597a± 0.0021
Eccentricity (e)0.6283± 0.009 Inclination (i)71.59°± 0.41 Longitude of periastron (ω)299.9°± 1.1
Node (Ω)26.64°± 0.61 Notesn ReferenceTok2012b
Equinox2000 Last observation2012 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 24.5 0.114
2001 30.2 0.129
2002 35.0 0.137
2003 39.4 0.140
2004 43.7 0.140
2005 48.1 0.137
2006 52.7 0.133
2007 57.6 0.129
2008 62.9 0.124
2009 68.6 0.119
2010 74.8 0.114
2011 81.5 0.110
2012 88.6 0.108
2013 96.0 0.106
2014 103.5 0.106
2015 110.9 0.107
2016 118.1 0.110
2017 124.9 0.113
2018 131.2 0.118
2019 136.9 0.124
2020 142.1 0.131
2021 146.7 0.138
2022 150.9 0.146
2023 154.6 0.154
2024 158.0 0.163
2025 161.0 0.171
2026 163.7 0.180
2027 166.2 0.189
2028 168.5 0.197
2029 170.6 0.206
2030 172.5 0.214


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



 
 


wds15088-4517a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic