18099+0307 YSC 132 Aa,Ab

 
 
18h 09m 54.01s +03° 07' 13.1" P.A. 357.00 sep 0.0 mag 6.10,7.10 Sp F7V+F7.5V dist. 46.93 pc (153.09 l.y.)
 
 
Coord 2000 18099+0307 Discov num YSC 132 Comp Aa,Ab Coord arcsec 2000 18 09 54.01 +03 07 13.1
Date first 2008 Date last 2021 Obs 21
Pa first 320 Pa last 357.2 P.A. Now (θ) 357.2°
Sep first 0.0 Sep last 0.012 Sep. Now (ρ) 0.012"
Mag pri 6.10 Mag sec 7.10 delta mag (ΔM) 1 Spectral class F7V+F7.5V (yellow-white/yellow-white)
Pri motion ra +014 Sec motion ra
Pri motion dec -193 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
18099+0307 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 123198 18 09 54 +03 07 13 YSC 132 Aa,Ab 2021 21 357 0.0 6.10 7.10 1.00 Y <===
Show HD 166285 123198 18 09 54 +03 07 13 BU 637 AB 2016 14 191 7.2 5.69 11.70 6.01
Show 123198 18 09 54 +03 07 13 BU 637 AC 2000 6 245 98.2 5.69 10.90 5.21
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ophiuchus SAO 123198 HIP 89000 Tycho2 0435-04799-1
Gaia DR2 4469921487441710208 HD 166285 HR 6797 ADS 11113
BD BD+03 3613 Distance 46.93 Distance ly 153.09
 
 
ORBITAL ELEMENTS
 
 
Period (P)0.54643y± 0.00006 Periastron (T)1990.675y± 0.001 Semi-major axis (a)0.019a± 0.0005
Eccentricity (e)0.302± 0.002 Inclination (i)146.3°± 1.3 Longitude of periastron (ω)86.65°± 0.27
Node (Ω)51.2°± 2.4 Notesn ReferenceMdz2017
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 275.4 0.013
2001 34.1 0.015
2002 89.0 0.020
2003 131.7 0.020
2004 172.8 0.021
2005 215.4 0.019
2006 288.5 0.012
2007 42.4 0.016
2008 94.1 0.020
2009 136.5 0.021
2010 177.5 0.021
2011 221.0 0.019
2012 303.5 0.011
2013 49.9 0.017
2014 99.1 0.020
2015 141.3 0.021
2016 182.2 0.021
2017 227.0 0.018
2018 319.8 0.011
2019 56.8 0.018
2020 104.1 0.020
2021 146.1 0.021
2022 186.9 0.021
2023 233.5 0.017
2024 336.3 0.011
2025 63.1 0.018
2026 109.1 0.020
2027 150.8 0.021
2028 191.7 0.021
2029 240.6 0.016
2030 351.8 0.012


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



 
 


wds18099%2B0307e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic