02193-0259 JOY 1 Aa,Ab

 
 
02h 19m 20.78s -02° 58' 39.5" P.A. 98.00 sep 0.5 mag 6.80,10.40 Sp M7IIIe dist. 91.66 pc (298.99 l.y.)
 
 
Coord 2000 02193-0259 Discov num JOY   1 Comp Aa,Ab Coord arcsec 2000 02 19 20.78 -02 58 39.5
Date first 1923 Date last 2014 Obs 82
Pa first 130 Pa last 98.1 P.A. Now (θ) 98.1°
Sep first 0.9 Sep last 0.487 Sep. Now (ρ) 0.487"
Mag pri 6.80 Mag sec 10.40 delta mag (ΔM) 3.6 Spectral class M7IIIe (red)
Pri motion ra +007 Sec motion ra
Pri motion dec -239 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
02193-0259 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 129825 02 19 21 -02 58 40 JOY 1 Aa,Ab 2014 82 98 0.5 6.80 10.40 3.60 Y <===
Show 129825 02 19 21 -02 58 40 BU 1371 AB 2017 10 68 71.5 6.64 14.07 7.43
Show Mira 129825 02 19 21 -02 58 40 H 6 1 AC 2017 43 68 121.8 6.64 9.65 3.01
Show 129825 02 19 21 -02 58 40 STG 1 AD 2019 8 324 166.9 6.64 13.66 7.02
Show 129828 02 19 25 -02 58 16 H 6 1 BC 2019 8 68 50.3 14.07 9.65 4.42
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Mira Var name VZ Cet Constellation Cetus SAO 129825
HIP 10826 Tycho2 4693-01144-1 Gaia DR2 2493390319631662720 HD 14386
HR 681 GC 2796 ADS 1778 BD BD-03 353
Bayer Omicron Ceti Bayer name Omi Cet Flamsteed 68 Ceti Flamsteed name 68 Cet
Distance 91.66 Distance ly 298.99 Bayer greek ο Cet
Meaning beautiful
 
 
ORBITAL ELEMENTS
 
 
Period (P)497.88y Periastron (T)2285.75y Semi-major axis (a)0.8a
Eccentricity (e)0.16 Inclination (i)112° Longitude of periastron (ω)258.3°
Node (Ω)138.8° Notesn ReferenceSca2001f
Equinox2000 Last observation1998 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 107.2 0.561
2001 106.7 0.556
2002 106.1 0.551
2003 105.6 0.545
2004 105.0 0.540
2005 104.4 0.535
2006 103.8 0.530
2007 103.2 0.525
2008 102.5 0.520
2009 101.9 0.515
2010 101.2 0.510
2011 100.6 0.505
2012 99.9 0.500
2013 99.2 0.495
2014 98.5 0.490
2015 97.8 0.485
2016 97.0 0.480
2017 96.3 0.475
2018 95.5 0.470
2019 94.7 0.465
2020 93.9 0.460
2021 93.1 0.455
2022 92.3 0.451
2023 91.4 0.446
2024 90.6 0.441
2025 89.7 0.437
2026 88.8 0.432
2027 87.9 0.428
2028 86.9 0.424
2029 85.9 0.419
2030 85.0 0.415


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



 
 


wds02193-0259a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic