00576+5424 HLD 4 (HD 5502)

 
 
00h 57m 35.79s +54 23' 44.8" P.A. 50.00 sep 0.4 mag 9.00,9.50 Sp G0
 
 
Coord 2000 00576+5424 Discov num HLD   4 Comp Coord arcsec 2000 00 57 35.79 +54 23 44.8
Date first 1881 Date last 2016 Obs 37
Pa first 125 Pa last 50 P.A. Now (θ) 50°
Sep first 1.0 Sep last 0.406 Sep. Now (ρ) 0.406"
Mag pri 9.00 Mag sec 9.50 delta mag (ΔM) 0.5 Spectral class G0 (yellow)
Pri motion ra +054 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 5502 Constellation Cassiopeia SAO 21874 Tycho2 3672-00063-1
Gaia DR2 417343518342363136 HD 5502 ADS 795
 
 
ORBITAL ELEMENTS
 
 
Period (P)788.16y Periastron (T)1990.92y Semi-major axis (a)0.948a
Eccentricity (e)0.892 Inclination (i)13.3° Longitude of periastron (ω)191.7°
Node (Ω)90.1° Notes ReferenceMnt2001c
Equinox Last observation1996 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 16.0 0.201
2001 20.2 0.216
2002 23.8 0.230
2003 27.0 0.245
2004 29.9 0.259
2005 32.5 0.273
2006 34.8 0.287
2007 36.8 0.301
2008 38.8 0.314
2009 40.5 0.328
2010 42.1 0.341
2011 43.6 0.354
2012 45.0 0.366
2013 46.3 0.379
2014 47.5 0.391
2015 48.7 0.404
2016 49.8 0.416
2017 50.8 0.427
2018 51.7 0.439
2019 52.7 0.451
2020 53.5 0.462
2021 54.3 0.473
2022 55.1 0.484
2023 55.9 0.495
2024 56.6 0.506
2025 57.3 0.517
2026 58.0 0.528
2027 58.6 0.538
2028 59.2 0.548
2029 59.8 0.559
2030 60.4 0.569


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



 
 


wds00576%2B5424a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic