15359+1255 STF 1957 (HD 139086)

 
 
15h 35m 51.05s +12° 54' 58.7" P.A. 132.00 sep 0.3 mag 7.96,9.43 Sp F8 dist. 68.26 pc (222.66 l.y.)
 
 
Coord 2000 15359+1255 Discov num STF1957 Comp Coord arcsec 2000 15 35 51.05 +12 54 58.7
Date first 1828 Date last 2013 Obs 94
Pa first 165 Pa last 131.6 P.A. Now (θ) 131.6°
Sep first 1.5 Sep last 0.278 Sep. Now (ρ) 0.278"
Mag pri 7.96 Mag sec 9.43 delta mag (ΔM) 1.47 Spectral class F8 (yellow-white)
Pri motion ra -055 Sec motion ra
Pri motion dec +007 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 139086 Constellation Serpens SAO 101633 HIP 76368
Tycho2 0937-00013-1 Gaia DR2 1193614296808004736 HD 139086 GC 20967
ADS 9708 BD BD+13 2969 Distance 68.26 Distance ly 222.66
 
 
ORBITAL ELEMENTS
 
 
Period (P)1524.4159y± 648.9216 Periastron (T)1746.6796y± 168.282 Semi-major axis (a)5.64316a± 3.81279
Eccentricity (e)0.86815± 0.11452 Inclination (i)91.064°± 2.874 Longitude of periastron (ω)289.557°± 44.127
Node (Ω)159.772°± 2.341 Notes ReferenceIzm2019
Equinox Last observation2008 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 137.2 0.344
2001 136.6 0.336
2002 136.0 0.328
2003 135.4 0.321
2004 134.7 0.313
2005 133.9 0.306
2006 133.2 0.298
2007 132.4 0.291
2008 131.5 0.283
2009 130.7 0.276
2010 129.7 0.269
2011 128.7 0.262
2012 127.7 0.254
2013 126.6 0.247
2014 125.4 0.241
2015 124.2 0.234
2016 122.9 0.227
2017 121.5 0.220
2018 120.0 0.214
2019 118.5 0.208
2020 116.8 0.202
2021 115.1 0.196
2022 113.2 0.190
2023 111.2 0.184
2024 109.1 0.179
2025 106.9 0.174
2026 104.5 0.169
2027 102.0 0.165
2028 99.4 0.160
2029 96.7 0.157
2030 93.8 0.153


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



 
 


wds15359%2B1255a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic