17136+1716 A 2087

 
 
17h 13m 38.90s +17° 16' 27.0" P.A. 133.00 sep 0.5 mag 10.47,10.73 Sp G5 dist. 121.8 pc (397.31 l.y.)
 
 
Coord 2000 17136+1716 Discov num A  2087 Comp Coord arcsec 2000 17 13 38.90 +17 16 27.0
Date first 1909 Date last 2017 Obs 37
Pa first 193 Pa last 132.5 P.A. Now (θ) 132.5°
Sep first 0.4 Sep last 0.489 Sep. Now (ρ) 0.489"
Mag pri 10.47 Mag sec 10.73 delta mag (ΔM) 0.26 Spectral class G5 (yellow)
Pri motion ra +017 Sec motion ra
Pri motion dec +018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules SAO 102661 HIP 84274 Tycho2 1540-02028-1
ADS 10403 BD BD+17 3190 Distance 121.8 Distance ly 397.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)300.41y Periastron (T)1969.64y Semi-major axis (a)0.464a
Eccentricity (e)0.666 Inclination (i)59.5° Longitude of periastron (ω)208.7°
Node (Ω)143.7° Notesn ReferenceMnt2001a
Equinox2000 Last observation1997 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 124.9 0.327
2001 125.8 0.337
2002 126.7 0.347
2003 127.4 0.357
2004 128.2 0.367
2005 128.9 0.376
2006 129.6 0.385
2007 130.2 0.394
2008 130.8 0.403
2009 131.4 0.412
2010 132.0 0.421
2011 132.5 0.429
2012 133.0 0.437
2013 133.5 0.445
2014 134.0 0.453
2015 134.5 0.461
2016 134.9 0.468
2017 135.4 0.476
2018 135.8 0.483
2019 136.2 0.490
2020 136.6 0.497
2021 137.0 0.504
2022 137.4 0.510
2023 137.8 0.517
2024 138.1 0.523
2025 138.5 0.530
2026 138.8 0.536
2027 139.2 0.542
2028 139.5 0.548
2029 139.8 0.553
2030 140.1 0.559
2031 140.4 0.565
2032 140.7 0.570
2033 141.0 0.575
2034 141.3 0.580
2035 141.6 0.585
2036 141.9 0.590
2037 142.2 0.595
2038 142.4 0.600
2039 142.7 0.604
2040 143.0 0.609
2041 143.2 0.613
2042 143.5 0.618
2043 143.8 0.622
2044 144.0 0.626
2045 144.3 0.630
2046 144.5 0.634
2047 144.7 0.638
2048 145.0 0.641
2049 145.2 0.645
2050 145.5 0.648


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds17136%2B1716a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic