17336-3706 TNG 1 Aa,Ab

 
 
17h 33m 36.52s -37° 06' 13.8" P.A. 98.00 sep 0.0 mag 2.08,2.73 Sp B2IV dist. 175.13 pc (571.27 l.y.)
 
 
Coord 2000 17336-3706 Discov num TNG   1 Comp Aa,Ab Coord arcsec 2000 17 33 36.52 -37 06 13.8
Date first 1999 Date last 2021 Obs 39
Pa first 266 Pa last 98.4 P.A. Now (θ) 98.4°
Sep first 0.0 Sep last 0.046 Sep. Now (ρ) 0.046"
Mag pri 2.08 Mag sec 2.73 delta mag (ΔM) 0.65 Spectral class B2IV (blue-white)
Pri motion ra -001 Sec motion ra
Pri motion dec -029 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
17336-3706 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 208954 17 33 37 -37 06 14 TNG 1 Aa,Ab 2021 39 98 0.0 2.08 2.73 0.65 Y <===
Show 208954 17 33 37 -37 06 14 SEE 334 AB 2000 2 106 42.4 1.60 14.90 13.30
Show Shaula 208954 17 33 37 -37 06 14 DUN 218 AC 2016 9 330 94.4 1.60 9.17 7.57
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Shaula Constellation Scorpius SAO 208954 HIP 85927
Tycho2 7388-01093-1 HD 158926 HR 6527 GC 23769
CD CD-3711673 CP CP-37 7265 Bayer Lambda Scorpii Bayer name Lam Sco
Flamsteed 35 Scorpii Flamsteed name 35 Sco FK5 652 Distance 175.13
Distance ly 571.27 Bayer greek λ Sco
Meaning tail lift
 
 
ORBITAL ELEMENTS
 
 
Period (P)1052.8d (2.88y)± 1.2 Periastron (T)51562.3m (2000.05y)± 2.8 Semi-major axis (a)49.3m± 0.3
Eccentricity (e)0.121± 0.005 Inclination (i)77.2°± 0.2 Longitude of periastron (ω)74.8°± 0.9
Node (Ω)271.3°± 0.15 Notesn ReferenceTng2006
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 298.6 0.019
2001-01-01 97.1 0.048
2002-01-01 254.8 0.033
2003-01-01 342.2 0.010
2004-01-01 100.9 0.043
2005-01-01 260.8 0.040
2006-01-01 50.1 0.014
2007-01-01 105.7 0.037
2008-01-01 265.1 0.045
2009-01-01 71.9 0.025
2010-01-01 113.2 0.029
2011-01-01 268.8 0.047
2012-01-01 80.5 0.036
2013-01-01 126.8 0.020
2014-01-01 272.3 0.047
2015-01-01 85.5 0.044
2016-01-01 157.1 0.013
2017-01-01 276.2 0.042
2018-01-01 89.2 0.049
2019-01-01 206.8 0.013
2020-01-01 281.4 0.035
2021-01-01 92.3 0.051
2022-01-01 237.0 0.020
2023-01-01 290.3 0.025
2024-01-01 95.5 0.050
2025-01-01 250.6 0.029
2026-01-01 313.0 0.014
2027-01-01 98.9 0.046
2028-01-01 258.0 0.036
2029-01-01 22.1 0.010
2030-01-01 103.1 0.040


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



 
 


wds17336-3706a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic