02257+6133 STF 257 (V559 Cas)

 
 
02h 25m 40.12s +61° 32' 58.8" P.A. 82.00 sep 0.4 mag 7.51,8.16 Sp B8IV dist. 213.22 pc (695.52 l.y.)
 
 
Coord 2000 02257+6133 Discov num STF 257 Comp Coord arcsec 2000 02 25 40.12 +61 32 58.8
Date first 1830 Date last 2019 Obs 103
Pa first 165 Pa last 81.8 P.A. Now (θ) 82.6°
Sep first 0.6 Sep last 0.36 Sep. Now (ρ) 0.484"
Mag pri 7.51 Mag sec 8.16 delta mag (ΔM) 0.65 Spectral class B8IV (blue-white)
Pri motion ra +017 Sec motion ra +017
Pri motion dec -013 Sec motion dec -013
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V559 Cas Constellation Cassiopeia SAO 12277 HIP 11318
Tycho2 4046-00698-1 Gaia DR2 513573914171764352 HD 14817 GC 2895
ADS 1833 BD BD+60 472 Distance 213.22 Distance ly 695.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)557y Periastron (T)1934y Semi-major axis (a)0.621a
Eccentricity (e)0.588 Inclination (i)43.8° Longitude of periastron (ω)165.8°
Node (Ω)142.4° Notesn ReferenceDoc2016b
Equinox2000 Last observation2007 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 64.6 0.385
2001 65.6 0.389
2002 66.5 0.393
2003 67.5 0.398
2004 68.4 0.402
2005 69.3 0.406
2006 70.1 0.410
2007 71.0 0.414
2008 71.8 0.419
2009 72.6 0.423
2010 73.4 0.427
2011 74.2 0.432
2012 75.0 0.436
2013 75.8 0.440
2014 76.5 0.445
2015 77.2 0.449
2016 78.0 0.453
2017 78.7 0.458
2018 79.3 0.462
2019 80.0 0.467
2020 80.7 0.471
2021 81.3 0.475
2022 82.0 0.480
2023 82.6 0.484
2024 83.2 0.488
2025 83.8 0.493
2026 84.4 0.497
2027 85.0 0.502
2028 85.6 0.506
2029 86.1 0.510
2030 86.7 0.515


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



 
 


wds02257%2B6133a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic