15317+0053 TOK 48 (HD 138369)

 
 
15h 31m 42.89s +00° 53' 01.5" P.A. 17.00 sep 0.0 mag 7.80,8.90 Sp G0 dist. 50.84 pc (165.84 l.y.)
 
 
Coord 2000 15317+0053 Discov num TOK  48 Comp Coord arcsec 2000 15 31 42.89 +00 53 01.5
Date first 2009 Date last 2021 Obs 19
Pa first 68 Pa last 17.2 P.A. Now (θ) 17.2°
Sep first 0.0 Sep last 0.03 Sep. Now (ρ) 0.03"
Mag pri 7.80 Mag sec 8.90 delta mag (ΔM) 1.1 Spectral class G0 (yellow)
Pri motion ra -015 Sec motion ra
Pri motion dec -090 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 138369 Constellation Serpens SAO 121042 HIP 76031
Tycho2 0350-00754-1 Gaia DR2 4417762133275591552 HD 138369 GC 20867
BD BD+01 3092 Distance 50.84 Distance ly 165.84
 
 
ORBITAL ELEMENTS
 
 
Period (P)1.713y± 0.002 Periastron (T)2016.47y± 0.01 Semi-major axis (a)0.0427a± 0.001
Eccentricity (e)0.435± 0.017 Inclination (i)150° Longitude of periastron (ω)45.8°± 2.3
Node (Ω)341.9°± 2.1 Notesn ReferenceTok2016e
Equinox2000 Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 137.8 0.057
2001 328.6 0.025
2002 111.7 0.056
2003 192.9 0.036
2004 78.5 0.046
2005 151.1 0.054
2006 20.1 0.032
2007 124.6 0.058
2008 243.2 0.024
2009 96.3 0.051
2010 167.2 0.047
2011 53.5 0.039
2012 137.0 0.057
2013 324.2 0.024
2014 110.9 0.055
2015 190.9 0.037
2016 77.2 0.045
2017 150.2 0.054
2018 17.4 0.032
2019 123.8 0.058
2020 238.5 0.024
2021 95.2 0.051
2022 166.0 0.048
2023 51.6 0.038
2024 136.2 0.058
2025 319.6 0.024
2026 110.0 0.055
2027 188.9 0.037
2028 75.9 0.045
2029 149.3 0.055
2030 14.7 0.031


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



 
 


wds15317%2B0053b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic