00542+4318 COU 1654 (HD 5178)

 
 
00h 54m 11.08s +43 17' 54.1" P.A. 90.00 sep 0.4 mag 8.40,8.40 Sp F0
 
 
Coord 2000 00542+4318 Discov num COU1654 Comp Coord arcsec 2000 00 54 11.08 +43 17 54.1
Date first 1978 Date last 2008 Obs 21
Pa first 107 Pa last 90.3 P.A. Now (θ) 90.3°
Sep first 0.2 Sep last 0.413 Sep. Now (ρ) 0.413"
Mag pri 8.40 Mag sec 8.40 delta mag (ΔM) 0 Spectral class F0 (yellow-white)
Pri motion ra +012 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 5178 Constellation Andromeda SAO 36758 Tycho2 2810-00453-1
Gaia DR2 375705979365736704 HD 5178
 
 
ORBITAL ELEMENTS
 
 
Period (P)93y Periastron (T)1918y Semi-major axis (a)0.15a
Eccentricity (e)0.564 Inclination (i)109.7° Longitude of periastron (ω)110°
Node (Ω)91.5° Notes ReferenceUSN2002
Equinox2000 Last observation1995 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 91.3 0.126
2001 89.7 0.119
2002 87.9 0.111
2003 85.8 0.102
2004 83.2 0.092
2005 79.9 0.080
2006 75.4 0.068
2007 68.8 0.054
2008 57.4 0.040
2009 34.5 0.027
2010 351.6 0.023
2011 314.3 0.030
2012 295.9 0.044
2013 286.1 0.057
2014 279.8 0.068
2015 275.3 0.078
2016 271.7 0.085
2017 268.6 0.091
2018 265.8 0.095
2019 263.2 0.098
2020 260.7 0.100
2021 258.3 0.101
2022 255.9 0.101
2023 253.6 0.100
2024 251.1 0.099
2025 248.6 0.098
2026 246.1 0.096
2027 243.4 0.095
2028 240.7 0.092
2029 237.8 0.090
2030 234.7 0.088


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



 
 


wds00542%2B4318a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic