17012-1213 HU 163 (HD 153355)

 
 
17h 01m 13.55s -12° 13' 01.8" P.A. 336.00 sep 0.1 mag 9.60,9.90 Sp G0 dist. 217.86 pc (710.66 l.y.)
 
 
Coord 2000 17012-1213 Discov num HU  163 Comp Coord arcsec 2000 17 01 13.55 -12 13 01.8
Date first 1900 Date last 2022 Obs 13
Pa first 335 Pa last 336.2 P.A. Now (θ) 336.2°
Sep first 0.3 Sep last 0.121 Sep. Now (ρ) 0.121"
Mag pri 9.60 Mag sec 9.90 delta mag (ΔM) 0.3 Spectral class G0 (yellow)
Pri motion ra -007 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 153355 Constellation Ophiuchus SAO 160228 HIP 83283
Tycho2 7873-01187-2 Gaia DR2 4333195429810983936 HD 153355 ADS 10305
BD BD-12 4641 Distance 217.86 Distance ly 710.66
 
 
ORBITAL ELEMENTS
 
 
Period (P)160y Periastron (T)2009y Semi-major axis (a)0.1994a
Eccentricity (e)0.73 Inclination (i)93.8° Longitude of periastron (ω)28.6°
Node (Ω)154.7° Notes ReferenceTok2020e
Equinox Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 169.6 0.029
2001 165.6 0.035
2002 162.8 0.042
2003 160.8 0.048
2004 159.2 0.053
2005 157.8 0.057
2006 156.6 0.059
2007 155.4 0.058
2008 154.2 0.055
2009 152.6 0.047
2010 150.3 0.036
2011 145.4 0.023
2012 123.8 0.008
2013 5.1 0.010
2014 347.1 0.024
2015 342.7 0.038
2016 340.7 0.052
2017 339.5 0.066
2018 338.7 0.078
2019 338.2 0.090
2020 337.7 0.102
2021 337.4 0.113
2022 337.1 0.123
2023 336.8 0.133
2024 336.6 0.142
2025 336.4 0.151
2026 336.3 0.160
2027 336.1 0.168
2028 336.0 0.176
2029 335.8 0.183
2030 335.7 0.190
2031 335.6 0.197
2032 335.5 0.204
2033 335.4 0.210
2034 335.3 0.216
2035 335.3 0.222
2036 335.2 0.227
2037 335.1 0.233
2038 335.0 0.238
2039 334.9 0.242
2040 334.9 0.247
2041 334.8 0.252
2042 334.8 0.256
2043 334.7 0.260
2044 334.6 0.264
2045 334.6 0.267
2046 334.5 0.271
2047 334.5 0.274
2048 334.4 0.278
2049 334.4 0.281
2050 334.3 0.284


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds17012-1213b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic