02402+0436 HDS 347

 
 
02h 40m 14.23s +04° 35' 55.9" P.A. 325.00 sep 0.6 mag 11.58,11.94 Sp K7 dist. 100 pc (326.2 l.y.)
 
 
Coord 2000 02402+0436 Discov num HDS 347 Comp Coord arcsec 2000 02 40 14.23 +04 35 55.9
Date first 1991 Date last 2018 Obs 17
Pa first 82 Pa last 324.9 P.A. Now (θ) 324.9°
Sep first 0.3 Sep last 0.611 Sep. Now (ρ) 0.611"
Mag pri 11.58 Mag sec 11.94 delta mag (ΔM) 0.36 Spectral class K7 (yellow-orange)
Pri motion ra +072 Sec motion ra
Pri motion dec -039 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cetus HIP 12446 Tycho2 0050-00874-3 Gaia DR2 5939394309662848
Distance 100 Distance ly 326.2
 
 
ORBITAL ELEMENTS
 
 
Period (P)362.678y± 2.712 Periastron (T)2346.36y± 0.185 Semi-major axis (a)0.8002a± 0.0103
Eccentricity (e)0.631± 0.006 Inclination (i)35°± 0.3 Longitude of periastron (ω)261.5°± 1
Node (Ω)135.2°± 0.7 Notesn ReferenceCve2020b
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 114.0 0.395
2001 116.5 0.408
2002 118.9 0.421
2003 121.1 0.434
2004 123.2 0.447
2005 125.1 0.459
2006 127.0 0.472
2007 128.8 0.484
2008 130.5 0.496
2009 132.1 0.507
2010 133.6 0.519
2011 135.1 0.530
2012 136.5 0.541
2013 137.8 0.552
2014 139.1 0.563
2015 140.4 0.573
2016 141.6 0.583
2017 142.8 0.593
2018 143.9 0.603
2019 145.0 0.613
2020 146.0 0.622
2021 147.1 0.632
2022 148.1 0.641
2023 149.0 0.650
2024 150.0 0.659
2025 150.9 0.667
2026 151.8 0.676
2027 152.7 0.684
2028 153.5 0.692
2029 154.4 0.700
2030 155.2 0.708


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



 
 


wds02402%2B0436b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic