02592+2120 STF 333 AB (Eps Ari)

 
 
02h 59m 12.73s +21° 20' 25.6" P.A. 210.00 sep 1.3 mag 5.17,5.57 Sp A2Vs+A2Vs dist. 101.94 pc (332.53 l.y.)
 
 
Coord 2000 02592+2120 Discov num STF 333 Comp AB Coord arcsec 2000 02 59 12.73 +21 20 25.6
Date first 1827 Date last 2022 Obs 467
Pa first 186 Pa last 210 P.A. Now (θ) 210°
Sep first 0.5 Sep last 1.348 Sep. Now (ρ) 1.348"
Mag pri 5.17 Mag sec 5.57 delta mag (ΔM) 0.4 Spectral class A2Vs+A2Vs (white/white)
Pri motion ra -009 Sec motion ra -009
Pri motion dec -005 Sec motion dec -005
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
02592+2120 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Eps Ari 75673 02 59 13 +21 20 26 STF 333 AB 2022 467 210 1.3 5.17 5.57 0.40 Y <===
Show 75673 02 59 13 +21 20 26 STF 333 AC 2000 5 192 145.6 5.17 12.70 7.53
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Eps Ari Var name NSV1001 Ari Constellation Aries SAO 75673
HIP 13914 Tycho2 1230-01424-1 Gaia DR2 108589696800254464 HD 18519
HR 887 GC 3582 ADS 2257 BD BD+20 484
Bayer Epsilon Arietis Bayer name Eps Ari Flamsteed 48 Arietis Flamsteed name 48 Ari
Distance 101.94 Distance ly 332.53 Bayer greek ε Ari
 
 
ORBITAL ELEMENTS
 
 
Period (P)710.5425y± 265.6559 Periastron (T)2098.303y± 36.8088 Semi-major axis (a)1.6688a± 0.37224
Eccentricity (e)0.43531± 0.18832 Inclination (i)83.89°± 1.265 Longitude of periastron (ω)268.178°± 35.461
Node (Ω)29.955°± 1.89 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 208.7 1.434
2001 208.7 1.430
2002 208.8 1.426
2003 208.9 1.422
2004 208.9 1.417
2005 209.0 1.413
2006 209.1 1.408
2007 209.1 1.403
2008 209.2 1.398
2009 209.3 1.393
2010 209.3 1.388
2011 209.4 1.382
2012 209.5 1.376
2013 209.5 1.370
2014 209.6 1.364
2015 209.7 1.358
2016 209.8 1.351
2017 209.8 1.345
2018 209.9 1.338
2019 210.0 1.331
2020 210.1 1.323
2021 210.1 1.316
2022 210.2 1.308
2023 210.3 1.300
2024 210.4 1.292
2025 210.5 1.283
2026 210.5 1.275
2027 210.6 1.266
2028 210.7 1.257
2029 210.8 1.248
2030 210.9 1.238


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



 
 


wds02592%2B2120c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic