02250+2529 COU 357 (HD 14918)

 
 
02h 25m 01.89s +25° 29' 12.9" P.A. 119.00 sep 0.3 mag 8.28,9.39 Sp G5III dist. 442.48 pc (1443.37 l.y.)
 
 
Coord 2000 02250+2529 Discov num COU 357 Comp Coord arcsec 2000 02 25 01.89 +25 29 12.9
Date first 1968 Date last 2014 Obs 22
Pa first 152 Pa last 119.3 P.A. Now (θ) 119.3°
Sep first 0.3 Sep last 0.315 Sep. Now (ρ) 0.315"
Mag pri 8.28 Mag sec 9.39 delta mag (ΔM) 1.11 Spectral class G5III (yellow)
Pri motion ra -010 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 14918 Constellation Aries SAO 75348 HIP 11265
Tycho2 1770-00322-1 Gaia DR2 103120794683172864 HD 14918 BD BD+24 344
Distance 442.48 Distance ly 1443.37
 
 
ORBITAL ELEMENTS
 
 
Period (P)393.8y± 42.8 Periastron (T)2360.8y± 46.4 Semi-major axis (a)0.369a± 0.027
Eccentricity (e)0.253± 0.05 Inclination (i)123°± 0.9 Longitude of periastron (ω)316°± 7.1
Node (Ω)128.9°± 1.4 Notes ReferenceKsr2021
Equinox Last observation2013 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 125.8 0.296
2001 125.0 0.296
2002 124.3 0.297
2003 123.5 0.297
2004 122.8 0.298
2005 122.1 0.298
2006 121.3 0.298
2007 120.6 0.298
2008 119.9 0.298
2009 119.1 0.298
2010 118.4 0.298
2011 117.6 0.298
2012 116.9 0.298
2013 116.2 0.297
2014 115.4 0.297
2015 114.7 0.296
2016 113.9 0.296
2017 113.2 0.295
2018 112.4 0.294
2019 111.6 0.293
2020 110.9 0.292
2021 110.1 0.292
2022 109.3 0.291
2023 108.6 0.290
2024 107.8 0.289
2025 107.0 0.287
2026 106.2 0.286
2027 105.4 0.285
2028 104.6 0.284
2029 103.8 0.282
2030 102.9 0.281


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


 
  


wds02250%2B2529a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic