14383-4954 FIN 371 (HD 128415)

 
 
14h 38m 17.68s -49° 54' 03.9" P.A. 127.00 sep 0.0 mag 7.40,7.40 Sp A0IV dist. 236.41 pc (771.17 l.y.)
 
 
Coord 2000 14383-4954 Discov num FIN 371 Comp Coord arcsec 2000 14 38 17.68 -49 54 03.9
Date first 1960 Date last 2021 Obs 35
Pa first 51 Pa last 126.6 P.A. Now (θ) 92.1°
Sep first 0.1 Sep last 0.031 Sep. Now (ρ) 0.042"
Mag pri 7.40 Mag sec 7.40 delta mag (ΔM) 0 Spectral class A0IV (white)
Pri motion ra -017 Sec motion ra
Pri motion dec -010 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 128415 Constellation Lupus SAO 225078 HIP 71577
Tycho2 8287-01574-1 Gaia DR2 5899332130206748544 HD 128415 GC 19702
CD CD-49 8904 CP CP-49 7179 Distance 236.41 Distance ly 771.17
 
 
ORBITAL ELEMENTS
 
 
Period (P)51.6y± 3.3 Periastron (T)2015.5y± 1.3 Semi-major axis (a)0.099a± 0.004
Eccentricity (e)0.201± 0.027 Inclination (i)108°± 1.1 Longitude of periastron (ω)38°± 10.7
Node (Ω)233.8°± 1.3 Notes ReferenceTok2019c
Equinox Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 323.9 0.034
2001 305.7 0.034
2002 289.7 0.038
2003 277.2 0.044
2004 267.7 0.050
2005 260.5 0.057
2006 254.8 0.064
2007 250.1 0.070
2008 246.2 0.075
2009 242.7 0.079
2010 239.5 0.082
2011 236.4 0.083
2012 233.4 0.082
2013 230.2 0.079
2014 226.7 0.074
2015 222.6 0.068
2016 217.5 0.060
2017 210.8 0.051
2018 200.9 0.041
2019 185.5 0.033
2020 161.3 0.027
2021 131.5 0.027
2022 107.4 0.033
2023 92.1 0.042
2024 82.5 0.052
2025 76.0 0.062
2026 71.3 0.071
2027 67.7 0.080
2028 64.8 0.088
2029 62.3 0.095
2030 60.1 0.101


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



 
 


wds14383-4954c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic