05047+7404 STT 89 (HD 31590)

 
 
05h 04m 39.67s +74° 04' 01.0" P.A. 289.00 sep 0.4 mag 6.53,7.29 Sp A1V dist. 171.23 pc (558.55 l.y.)
 
 
Coord 2000 05047+7404 Discov num STT  89 Comp Coord arcsec 2000 05 04 39.67 +74 04 01.0
Date first 1843 Date last 2019 Obs 58
Pa first 304 Pa last 288.6 P.A. Now (θ) 304.7°
Sep first 0.2 Sep last 0.369 Sep. Now (ρ) 0.266"
Mag pri 6.53 Mag sec 7.29 delta mag (ΔM) 0.76 Spectral class A1V (white)
Pri motion ra +009 Sec motion ra +009
Pri motion dec -017 Sec motion dec -017
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 31590 Constellation Camelopardalis SAO 5407 HIP 23617
Tycho2 4354-00198-1 Gaia DR2 502542170414672128 HD 31590 HR 1589
GC 6121 BD BD+73 265 Distance 171.23 Distance ly 558.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)140.7y Periastron (T)1919.08y Semi-major axis (a)0.373a
Eccentricity (e)0.878 Inclination (i)83.6° Longitude of periastron (ω)50.9°
Node (Ω)111.9° Notesn ReferenceAlz2020c
Equinox2000 Last observation2003 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 300.8 0.405
2001 300.9 0.400
2002 301.1 0.395
2003 301.2 0.390
2004 301.3 0.385
2005 301.4 0.380
2006 301.6 0.375
2007 301.7 0.369
2008 301.8 0.364
2009 302.0 0.358
2010 302.1 0.352
2011 302.3 0.347
2012 302.5 0.341
2013 302.6 0.334
2014 302.8 0.328
2015 303.0 0.322
2016 303.2 0.315
2017 303.4 0.309
2018 303.6 0.302
2019 303.8 0.295
2020 304.0 0.288
2021 304.2 0.281
2022 304.5 0.274
2023 304.7 0.266
2024 305.0 0.259
2025 305.3 0.251
2026 305.6 0.243
2027 306.0 0.235
2028 306.3 0.227
2029 306.7 0.219
2030 307.1 0.211


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



 
 


wds05047%2B7404b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic