17533+2459 A 235 (HD 163077)

 
 
17h 53m 18.60s +24° 59' 29.0" P.A. 76.00 sep 0.4 mag 8.36,9.28 Sp G8V dist. 49.04 pc (159.97 l.y.)
 
 
Coord 2000 17533+2459 Discov num A   235 Comp Coord arcsec 2000 17 53 18.60 +24 59 29.0
Date first 1901 Date last 2021 Obs 117
Pa first 65 Pa last 75.7 P.A. Now (θ) 78.9°
Sep first 0.2 Sep last 0.371 Sep. Now (ρ) 0.394"
Mag pri 8.36 Mag sec 9.28 delta mag (ΔM) 0.92 Spectral class G8V (yellow)
Pri motion ra -070 Sec motion ra -070
Pri motion dec -050 Sec motion dec -050
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 163077 Constellation Hercules SAO 85508 HIP 87565
Tycho2 2094-01508-1 HD 163077 GC 24331 ADS 10871
BD BD+25 3368 Distance 49.04 Distance ly 159.97
 
 
ORBITAL ELEMENTS
 
 
Period (P)38.09y Periastron (T)2082.1y Semi-major axis (a)0.273a
Eccentricity (e)0.483 Inclination (i)67.3° Longitude of periastron (ω)355°
Node (Ω)263.8° Notesn ReferenceHrt2014b
Equinox2000 Last observation2009 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 119.8 0.150
2001 134.1 0.112
2002 160.4 0.083
2003 199.8 0.078
2004 231.3 0.100
2005 249.9 0.127
2006 262.8 0.141
2007 275.1 0.135
2008 290.5 0.113
2009 314.0 0.090
2010 347.2 0.083
2011 17.4 0.099
2012 36.2 0.129
2013 47.5 0.164
2014 54.9 0.198
2015 60.0 0.232
2016 64.0 0.262
2017 67.1 0.290
2018 69.7 0.315
2019 71.9 0.337
2020 73.9 0.356
2021 75.7 0.371
2022 77.4 0.384
2023 78.9 0.394
2024 80.4 0.400
2025 81.9 0.404
2026 83.4 0.404
2027 84.8 0.401
2028 86.3 0.395
2029 87.9 0.386
2030 89.6 0.373


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



 
 


wds17533%2B2459b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic