01337-1213 HWE 4 AB (HD 9575)

 
 
01h 33m 42.39s -12 12' 46.1" P.A. 335.00 sep 0.9 mag 9.23,9.31 Sp G3V dist. 66.62 pc (217.31 l.y.)
 
 
Coord 2000 01337-1213 Discov num HWE   4 Comp AB Coord arcsec 2000 01 33 42.39 -12 12 46.1
Date first 1877 Date last 2016 Obs 59
Pa first 328 Pa last 335 P.A. Now (θ) 335°
Sep first 0.9 Sep last 0.9 Sep. Now (ρ) 0.9"
Mag pri 9.23 Mag sec 9.31 delta mag (ΔM) 0.08 Spectral class G3V (yellow)
Pri motion ra -011 Sec motion ra -011
Pri motion dec -009 Sec motion dec -009
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
01337-1213 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 9575 147882 01 33 42 -12 12 46 HWE 4 AB 2016 59 335 0.9 9.23 9.31 0.08 Y <===
Show 147882 01 33 42 -12 12 46 HWE 4 AC 2016 4 257 61.5 9.23 12.25 3.02
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 9575 Constellation Cetus SAO 147882 HIP 7274
Tycho2 5279-00225-1 HD 9575 ADS 1223 BD BD-12 286
Distance 66.62 Distance ly 217.31
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier01337-1213 HWE 4
coord_arcsec_2000013342.39-121246.1
Period (P)142.42y Periastron (T)2065.92y Semi-major axis (a)0.571a
Eccentricity (e)0.837 Inclination (i)118.6° Longitude of periastron (ω)318.6°
Node (Ω)133.7° Notesn ReferenceDoc2017i
Equinox2000 Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 335.0 0.869
2001 334.8 0.871
2002 334.5 0.873
2003 334.2 0.875
2004 333.9 0.876
2005 333.6 0.877
2006 333.3 0.878
2007 333.1 0.878
2008 332.8 0.878
2009 332.5 0.878
2010 332.2 0.878
2011 332.0 0.878
2012 331.7 0.877
2013 331.4 0.875
2014 331.1 0.874
2015 330.8 0.872
2016 330.5 0.870
2017 330.3 0.868
2018 330.0 0.865
2019 329.7 0.862
2020 329.4 0.859
2021 329.1 0.855
2022 328.8 0.851
2023 328.5 0.847
2024 328.2 0.842
2025 327.9 0.837
2026 327.6 0.831
2027 327.3 0.826
2028 326.9 0.819
2029 326.6 0.813
2030 326.3 0.806


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



 
 


wds01337-1213e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic