01158-6853 HJ 3423 AB (Kap Tuc)

 
 
01h 15m 46.16s -68 52' 33.3" P.A. 315.00 sep 4.6 mag 4.88,7.54 Sp F6IV+G5V dist. 20.96 pc (68.37 l.y.)
 
 
Coord 2000 01158-6853 Discov num HJ 3423 Comp AB Coord arcsec 2000 01 15 46.16 -68 52 33.3
Date first 1834 Date last 2017 Obs 78
Pa first 12 Pa last 315.1 P.A. Now (θ) 315.1°
Sep first 2.0 Sep last 4.601 Sep. Now (ρ) 4.601"
Mag pri 4.88 Mag sec 7.54 delta mag (ΔM) 2.66 Spectral class F6IV+G5V (yellow-white/yellow)
Pri motion ra +409 Sec motion ra +386
Pri motion dec +107 Sec motion dec +082
Notes N O (See Notes, Orbital solution)
rPM=0.08 (< 0.3, Physical double)
This double is physical.
 
 
01158-6853 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Kap Tuc 248346 01 15 46 -68 52 33 HJ 3423 AB 2017 78 315 4.6 4.88 7.54 2.66 Y <===
Show 248346 01 15 46 -68 52 33 HJ 3423 A,CD 2010 10 310 319.2 4.88 7.23 2.35
Show 248342 01 15 01 -68 49 08 I 27 CD 2021 81 359 1.0 7.76 8.26 0.50 Y
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Kap Tuc Var name NSV454 Tuc Constellation Tucana SAO 248346
HIP 5896 Tycho2 9136-01759-2 HD 7788 HR 377
GC 1536 GL Gl 55.3A CD CD-69 52 CP CP-69 45
Bayer Kappa Tucanae Bayer name Kap Tuc Distance 20.96 Distance ly 68.37
Bayer greek κ Tuc
 
 
ORBITAL ELEMENTS
 
 
Period (P)1200y Periastron (T)2086.7y± 4.1 Semi-major axis (a)7.03a± 0.07
Eccentricity (e)0.4 Inclination (i)128.5°± 1.1 Longitude of periastron (ω)61.3°± 1.6
Node (Ω)323.1°± 0.5 Notesn ReferenceTok2020d
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 322.0 4.908
2001 321.7 4.894
2002 321.3 4.879
2003 320.9 4.863
2004 320.6 4.848
2005 320.2 4.832
2006 319.9 4.816
2007 319.5 4.800
2008 319.1 4.784
2009 318.8 4.767
2010 318.4 4.750
2011 318.0 4.733
2012 317.6 4.716
2013 317.2 4.699
2014 316.9 4.681
2015 316.5 4.663
2016 316.1 4.645
2017 315.7 4.627
2018 315.3 4.609
2019 314.9 4.590
2020 314.5 4.571
2021 314.1 4.552
2022 313.7 4.533
2023 313.3 4.513
2024 312.8 4.494
2025 312.4 4.474
2026 312.0 4.454
2027 311.6 4.434
2028 311.1 4.413
2029 310.7 4.392
2030 310.3 4.372


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



 
 


wds01158-6853f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic