02087-1005 HU 16 (HD 13191)

 
 
02h 08m 42.29s -10° 05' 18.9" P.A. 35.00 sep 0.9 mag 9.30,10.53 Sp G5
 
 
Coord 2000 02087-1005 Discov num HU   16 Comp Coord arcsec 2000 02 08 42.29 -10 05 18.9
Date first 1899 Date last 2017 Obs 21
Pa first 329 Pa last 35.4 P.A. Now (θ) 35.4°
Sep first 1.1 Sep last 0.892 Sep. Now (ρ) 0.892"
Mag pri 9.30 Mag sec 10.53 delta mag (ΔM) 1.23 Spectral class G5 (yellow)
Pri motion ra +152 Sec motion ra +152
Pri motion dec -016 Sec motion dec -016
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 13191 Constellation Cetus Tycho2 5281-02156-1 Gaia DR2 2461867767939946112
HD 13191 ADS 1674
 
 
ORBITAL ELEMENTS
 
 
Period (P)485y Periastron (T)1929.62y Semi-major axis (a)1.173a
Eccentricity (e)0 Inclination (i)45.4° Longitude of periastron (ω)
Node (Ω)338.8° Notes ReferenceTok2017c
Equinox2000 Last observation2013 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 21.0 0.969
2001 21.8 0.965
2002 22.5 0.960
2003 23.3 0.956
2004 24.1 0.952
2005 24.9 0.947
2006 25.7 0.943
2007 26.5 0.938
2008 27.3 0.934
2009 28.2 0.930
2010 29.0 0.925
2011 29.8 0.921
2012 30.7 0.917
2013 31.5 0.913
2014 32.4 0.909
2015 33.3 0.905
2016 34.2 0.901
2017 35.0 0.897
2018 35.9 0.893
2019 36.8 0.889
2020 37.8 0.885
2021 38.7 0.882
2022 39.6 0.878
2023 40.5 0.875
2024 41.5 0.872
2025 42.4 0.868
2026 43.4 0.865
2027 44.3 0.862
2028 45.3 0.859
2029 46.3 0.856
2030 47.3 0.853


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



 
 


wds02087-1005e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic