04245+5051 COU 2459 AB (HD 27673)

 
 
04h 24m 32.79s +50° 50' 42.6" P.A. 130.00 sep 1.0 mag 7.05,10.19 Sp F2 dist. 46.64 pc (152.14 l.y.)
 
 
Coord 2000 04245+5051 Discov num COU2459 Comp AB Coord arcsec 2000 04 24 32.79 +50 50 42.6
Date first 1989 Date last 2016 Obs 14
Pa first 167 Pa last 130.1 P.A. Now (θ) 130.1°
Sep first 0.7 Sep last 1.019 Sep. Now (ρ) 1.019"
Mag pri 7.05 Mag sec 10.19 delta mag (ΔM) 3.14 Spectral class F2 (yellow-white)
Pri motion ra +007 Sec motion ra
Pri motion dec -063 Sec motion dec
Notes N C (See Notes, Has orbit and linear solution)
This double is physical.
 
 
04245+5051 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 27673 24589 04 24 33 +50 50 43 COU 2459 AB 2016 14 130 1.0 7.05 10.19 3.14 Y <===
Show 24589 04 24 33 +50 50 43 TOK 245 AC 2015 8 181 367.6 6.96 10.37 3.41
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 27673 Constellation Perseus SAO 24589 HIP 20586
Tycho2 3341-01000-1 Gaia DR2 271083015576372096 HD 27673 GC 5319
BD BD+50 986 Distance 46.64 Distance ly 152.14
 
 
ORBITAL ELEMENTS
 
 
Period (P)633.6y± 98.6 Periastron (T)2586y± 103.5 Semi-major axis (a)1.833a± 0.14
Eccentricity (e)0.445± 0.039 Inclination (i)120.9°± 1.1 Longitude of periastron (ω)223.6°± 12.3
Node (Ω)95.9°± 1.7 Notesn ReferenceKsr2021
Equinox Last observation2016 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 148.8 0.755
2001 147.2 0.770
2002 145.8 0.785
2003 144.4 0.801
2004 143.1 0.817
2005 141.8 0.832
2006 140.5 0.849
2007 139.3 0.865
2008 138.2 0.881
2009 137.1 0.898
2010 136.0 0.915
2011 135.0 0.931
2012 134.0 0.948
2013 133.0 0.965
2014 132.1 0.982
2015 131.2 0.999
2016 130.3 1.016
2017 129.5 1.032
2018 128.7 1.049
2019 127.9 1.066
2020 127.1 1.083
2021 126.4 1.100
2022 125.7 1.117
2023 125.0 1.133
2024 124.3 1.150
2025 123.7 1.167
2026 123.0 1.183
2027 122.4 1.199
2028 121.8 1.216
2029 121.2 1.232
2030 120.6 1.248


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



 
 


wds04245%2B5051a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic