02159+0638 A 2013 (HD 13959)

 
 
02h 15m 53.38s +06° 37' 34.9" P.A. 116.00 sep 0.4 mag 9.84,9.79 Sp K2 dist. 35.93 pc (117.2 l.y.)
 
 
Coord 2000 02159+0638 Discov num A  2013 Comp Coord arcsec 2000 02 15 53.38 +06 37 34.9
Date first 1909 Date last 2021 Obs 64
Pa first 146 Pa last 115.8 P.A. Now (θ) 111°
Sep first 0.2 Sep last 0.399 Sep. Now (ρ) 0.43"
Mag pri 9.84 Mag sec 9.79 delta mag (ΔM) 0.05 Spectral class K2 (yellow-orange)
Pri motion ra -111 Sec motion ra -111
Pri motion dec -056 Sec motion dec -056
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 13959 Constellation Cetus SAO 110435 HIP 10552
Tycho2 0044-01047-1 Gaia DR2 2520246127362593920 HD 13959 ADS 1729
BD BD+05 307 Distance 35.93 Distance ly 117.2
 
 
ORBITAL ELEMENTS
 
 
Period (P)34.66y± 0.15 Periastron (T)2005.69y± 0.2 Semi-major axis (a)0.346a± 0.002
Eccentricity (e)0.593± 0.01 Inclination (i)112.3°± 2 Longitude of periastron (ω)137.6°± 3
Node (Ω)91.8°± 2 Notesn ReferenceDoc2006i
Equinox2000 Last observation2004 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 88.4 0.353
2001 84.9 0.306
2002 80.0 0.248
2003 71.3 0.176
2004 49.0 0.096
2005 328.1 0.066
2006 282.7 0.130
2007 265.8 0.165
2008 252.3 0.166
2009 237.4 0.153
2010 219.5 0.140
2011 199.1 0.135
2012 179.3 0.144
2013 162.9 0.163
2014 150.5 0.190
2015 141.4 0.219
2016 134.5 0.251
2017 129.1 0.281
2018 124.8 0.311
2019 121.2 0.340
2020 118.1 0.366
2021 115.5 0.390
2022 113.1 0.412
2023 111.0 0.430
2024 109.0 0.446
2025 107.1 0.459
2026 105.4 0.468
2027 103.6 0.474
2028 102.0 0.476
2029 100.3 0.473
2030 98.6 0.466


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



 
 


wds02159%2B0638a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic