01197+1209 CHR 196 (HD 8018)

 
 
01h 19m 42.79s +12 08' 44.9" P.A. 270.00 sep 0.0 mag 8.67,9.25 Sp F5 dist. 121.36 pc (395.88 l.y.)
 
 
Coord 2000 01197+1209 Discov num CHR 196 Comp Coord arcsec 2000 01 19 42.79 +12 08 44.9
Date first 1991 Date last 2019 Obs 18
Pa first 316 Pa last 269.6 P.A. Now (θ) 132.3°
Sep first 0.2 Sep last 0.035 Sep. Now (ρ) 0.004"
Mag pri 8.67 Mag sec 9.25 delta mag (ΔM) 0.58 Spectral class F5 (yellow-white)
Pri motion ra +026 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 8018 Constellation Pisces SAO 92369 HIP 6216
Tycho2 0616-00653-1 Gaia DR2 2586575098316648192 HD 8018 BD BD+11 167
Distance 121.36 Distance ly 395.88
 
 
ORBITAL ELEMENTS
 
 
Period (P)44.7y Periastron (T)2023y Semi-major axis (a)0.158a
Eccentricity (e)0.95 Inclination (i)101.9° Longitude of periastron (ω)61.7°
Node (Ω)153.3° Notes ReferenceTok2018i
Equinox2000 Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 312.7 0.158
2001 312.2 0.155
2002 311.6 0.152
2003 311.0 0.149
2004 310.4 0.145
2005 309.8 0.141
2006 309.1 0.136
2007 308.4 0.131
2008 307.6 0.125
2009 306.7 0.119
2010 305.8 0.113
2011 304.7 0.107
2012 303.5 0.099
2013 302.1 0.092
2014 300.4 0.084
2015 298.4 0.076
2016 295.8 0.067
2017 292.5 0.058
2018 287.8 0.048
2019 280.8 0.038
2020 268.9 0.028
2021 245.5 0.020
2022 202.4 0.016
2023 132.3 0.004
2024 328.2 0.056
2025 325.4 0.081
2026 323.8 0.098
2027 322.6 0.112
2028 321.7 0.123
2029 320.9 0.132
2030 320.2 0.139


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



 
 


wds01197%2B1209a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic