03127+7133 STT 50 AB (HD 19475)

03h 12m 39.10s +71° 33' 20.7" P.A. 145.00 sep 1.0 mag 8.43,8.46 Sp F8 dist. 47.98 pc (156.51 l.y.)

Coord 2000 03127+7133 Discov num STT  50 Comp AB Coord arcsec 2000 03 12 39.10 +71 33 20.7
Date first 1843 Date last 2018 Obs 132
Pa first 236 Pa last 144.6 P.A. Now (θ) 144.6°
Sep first 0.9 Sep last 1.015 Sep. Now (ρ) 1.015"
Mag pri 8.43 Mag sec 8.46 delta mag (ΔM) 0.03 Spectral class F8 (yellow-white)
Pri motion ra +015 Sec motion ra +015
Pri motion dec +016 Sec motion dec +016
Notes N O (See Notes, Orbital solution)




This double is physical.



03127+7133 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 4846 03 12 39 +71 33 21 SCA 171 Aa,Ab 2009 1 27 0.4 8.43 9.10 0.67
Show HD 19475 4846 03 12 39 +71 33 21 STT 50 AB 2018 132 145 1.0 8.43 8.46 0.03 Y <===
Show 4846 03 12 39 +71 33 21 HJ 2172 AC 2003 5 298 28.2 8.43 13.90 5.47


Quadruple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 19475 Constellation Cassiopeia SAO 4846 HIP 14944
Tycho2 4334-00871-1 Gaia DR2 543889717491144704 HD 19475 ADS 2377
BD BD+70 230 Distance 47.98 Distance ly 156.51




ORBITAL ELEMENTS

Period (P)309y Periastron (T)2087y Semi-major axis (a)1.02a
Eccentricity (e)0.4 Inclination (i)135.9° Longitude of periastron (ω)5.6°
Node (Ω)14.3° Notesn ReferenceSca2012b
Equinox2000 Last observation2009 Grade4(1=Definitive, 9=Indet.)

label theta rho
2000 157.4 1.063
2001 156.7 1.054
2002 156.0 1.044
2003 155.3 1.035
2004 154.5 1.025
2005 153.7 1.015
2006 153.0 1.005
2007 152.2 0.995
2008 151.3 0.985
2009 150.5 0.975
2010 149.7 0.964
2011 148.8 0.954
2012 147.9 0.944
2013 147.0 0.934
2014 146.1 0.923
2015 145.1 0.913
2016 144.2 0.902
2017 143.2 0.892
2018 142.2 0.882
2019 141.1 0.871
2020 140.1 0.861
2021 139.0 0.850
2022 137.8 0.840
2023 136.7 0.830
2024 135.5 0.819
2025 134.3 0.809
2026 133.1 0.799
2027 131.8 0.789
2028 130.5 0.779
2029 129.2 0.769
2030 127.8 0.759


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



 
 


wds03127%2B7133a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic