01200-1549 HJ 2036 (HD 8071)

01h 19m 57.74s -15° 48' 50.8" P.A. 338.00 sep 2.2 mag 7.40,7.61 Sp G0IV dist. 46.21 pc (150.74 l.y.)

Coord 2000 01200-1549 Discov num HJ 2036 Comp Coord arcsec 2000 01 19 57.74 -15 48 50.8
Date first 1830 Date last 2018 Obs 118
Pa first 53 Pa last 337.8 P.A. Now (θ) 337.8°
Sep first 2.0 Sep last 2.171 Sep. Now (ρ) 2.171"
Mag pri 7.40 Mag sec 7.61 delta mag (ΔM) 0.21 Spectral class G0IV (yellow)
Pri motion ra +053 Sec motion ra +053
Pri motion dec -107 Sec motion dec -107
Notes N O (See Notes, Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 8071 Constellation Cetus SAO 147741 HIP 6234
Tycho2 5851-01822-1 Gaia DR2 2454680604026819200 HD 8071 GC 1605
ADS 1087 BD BD-16 223 Distance 46.21 Distance ly 150.74




ORBITAL ELEMENTS

Period (P)1443.343y± 37.617 Periastron (T)2674.911y± 18.428 Semi-major axis (a)3.4307a± 0.2653
Eccentricity (e)0.0922± 0.0244 Inclination (i)114.06°± 2.9 Longitude of periastron (ω)288.88°± 24.5
Node (Ω)124.78°± 1.6 Notes ReferenceOle2003d
Equinox2000 Last observation1999 Grade4(1=Definitive, 9=Indet.)

label theta rho
2000 341.5 2.237
2001 341.3 2.245
2002 341.1 2.253
2003 340.8 2.261
2004 340.6 2.269
2005 340.4 2.277
2006 340.1 2.285
2007 339.9 2.292
2008 339.7 2.300
2009 339.5 2.308
2010 339.2 2.316
2011 339.0 2.324
2012 338.8 2.332
2013 338.6 2.340
2014 338.4 2.348
2015 338.1 2.356
2016 337.9 2.363
2017 337.7 2.371
2018 337.5 2.379
2019 337.3 2.387
2020 337.1 2.395
2021 336.9 2.403
2022 336.7 2.411
2023 336.5 2.419
2024 336.3 2.426
2025 336.1 2.434
2026 335.9 2.442
2027 335.7 2.450
2028 335.5 2.458
2029 335.3 2.466
2030 335.1 2.473


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



 
 


wds01200-1549a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic