23005-2619 RST 1154 AB (HD 217379)

 
 
23h 00m 27.91s -26° 18' 43.3" P.A. 239.00 sep 2.4 mag 10.19,10.76 Sp K5(V) dist. 30.54 pc (99.62 l.y.)
 
 
Coord 2000 23005-2619 Discov num RST1154 Comp AB Coord arcsec 2000 23 00 27.91 -26 18 43.3
Date first 1930 Date last 2018 Obs 21
Pa first 203 Pa last 239.4 P.A. Now (θ) 239.4°
Sep first 0.6 Sep last 2.354 Sep. Now (ρ) 2.354"
Mag pri 10.19 Mag sec 10.76 delta mag (ΔM) 0.57 Spectral class K5(V) (yellow-orange)
Pri motion ra +113 Sec motion ra +113
Pri motion dec -169 Sec motion dec -169
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
23005-2619 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 217379 23 00 28 -26 18 43 RST 1154 AB 2018 21 239 2.4 10.19 10.76 0.57 Y <===
Show 191562 23 00 28 -26 18 43 SHY 364 AC 2000 7 349 581.2 10.19 7.56 2.63
Show 191562 23 00 19 -26 09 12 CVN 67 CD 2007 1 108 5.4 5.94 16.70 10.76
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 217379 Constellation Piscis Austrinus HIP 113597 Tycho2 6974-00854-1
Gaia DR2 2382705816958084224 HD 217379 CD CD-2616420 CP CP-26 7439
Distance 30.54 Distance ly 99.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)500y Periastron (T)1843.2y Semi-major axis (a)2.46a
Eccentricity (e)0.55 Inclination (i)80.9° Longitude of periastron (ω)150°
Node (Ω)250.1° Notesn ReferenceTok2016c
Equinox2000 Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 237.3 2.006
2001 237.5 2.026
2002 237.6 2.045
2003 237.7 2.065
2004 237.9 2.084
2005 238.0 2.103
2006 238.1 2.122
2007 238.3 2.141
2008 238.4 2.159
2009 238.5 2.178
2010 238.6 2.197
2011 238.8 2.215
2012 238.9 2.233
2013 239.0 2.251
2014 239.1 2.270
2015 239.2 2.287
2016 239.3 2.305
2017 239.4 2.323
2018 239.5 2.341
2019 239.6 2.358
2020 239.7 2.376
2021 239.8 2.393
2022 239.9 2.410
2023 240.0 2.427
2024 240.1 2.444
2025 240.2 2.461
2026 240.3 2.478
2027 240.4 2.494
2028 240.5 2.511
2029 240.6 2.527
2030 240.7 2.543


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



 
 


wds23005-2619a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic