13237-0043 A 2489 (HD 116444)

 
 
13h 23m 43.16s -00° 43' 09.1" P.A. 190.00 sep 1.0 mag 9.49,9.81 Sp G5 dist. 123.15 pc (401.72 l.y.)
 
 
Coord 2000 13237-0043 Discov num A  2489 Comp Coord arcsec 2000 13 23 43.16 -00 43 09.1
Date first 1912 Date last 2018 Obs 57
Pa first 191 Pa last 189.9 P.A. Now (θ) 189.9°
Sep first 0.3 Sep last 0.99 Sep. Now (ρ) 0.99"
Mag pri 9.49 Mag sec 9.81 delta mag (ΔM) 0.32 Spectral class G5 (yellow)
Pri motion ra -053 Sec motion ra -053
Pri motion dec -023 Sec motion dec -023
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 116444 Constellation Virgo HIP 65360 Tycho2 4959-00452-1
HD 116444 ADS 8884 BD BD+00 3050 Distance 123.15
Distance ly 401.72
 
 
ORBITAL ELEMENTS
 
 
Period (P)499y Periastron (T)1905y Semi-major axis (a)1.35a
Eccentricity (e)0.8 Inclination (i)95° Longitude of periastron (ω)142°
Node (Ω)183° Notesn ReferenceWSI2004a
Equinox2000 Last observation2002 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 193.0 0.784
2001 192.9 0.795
2002 192.8 0.806
2003 192.7 0.818
2004 192.6 0.829
2005 192.5 0.840
2006 192.4 0.851
2007 192.3 0.862
2008 192.2 0.873
2009 192.1 0.884
2010 192.0 0.895
2011 191.9 0.905
2012 191.8 0.916
2013 191.8 0.927
2014 191.7 0.937
2015 191.6 0.948
2016 191.5 0.958
2017 191.5 0.969
2018 191.4 0.979
2019 191.3 0.990
2020 191.2 1.000
2021 191.2 1.010
2022 191.1 1.020
2023 191.0 1.030
2024 191.0 1.041
2025 190.9 1.051
2026 190.9 1.061
2027 190.8 1.070
2028 190.7 1.080
2029 190.7 1.090
2030 190.6 1.100


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


 
  


wds13237-0043a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic