14330-4224 HDS2054

 
 
14h 32m 57.08s -42 24' 19.5" P.A. 39 sep 0.1 mag 8.39,8.89 Sp A7/A8IV dist. 129.03 pc (420.9 l.y.)
 
 
Coord 2000
14330-4224
Discov num
HDS2054
Comp
Coord arcsec 2000
14 32 57.08 -42 24 19.5
Date first
1991
Date last
2015
Obs
6
Pa first
1
Pa last
39
P.A. Now (θ)
39°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
8.39
Mag sec
8.89
delta mag (ΔM)
0.5
Spectral class
A7/A8IV (white)
Pri motion ra
-021
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
39.3
Precise sep
0.059
Constellation
Centaurus
SAO
225011
HIP
71140
Tycho2
7814-01676-1
HD
127498
CD
CD-41 8864
CP
CP-41 6817
Distance
129.03
Distance ly
420.9
last precise pa
30.9
last precise sep
0.076
 
 
ORBITAL ELEMENTS
 
 
Period (P)66.5y± 22.2 Periastron (T)1997.84y± 2.36 Semi-major axis (a)0.207a± 0.049
Eccentricity (e)0.8 Inclination (i)97.5°± 1.6 Longitude of periastron (ω)116°± 6
Node (Ω)356.7°± 2.2 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.070 171.4
2001 0.072 167.9
2002 0.069 164.2
2003 0.065 160.2
2004 0.059 155.5
2005 0.053 149.7
2006 0.047 142.5
2007 0.042 133.2
2008 0.037 121.5
2009 0.035 107.4
2010 0.034 91.9
2011 0.036 77.1
2012 0.040 64.4
2013 0.045 54.2
2014 0.051 46.4
2015 0.058 40.3
2016 0.065 35.5
2017 0.073 31.7
2018 0.080 28.6
2019 0.088 26.0
2020 0.095 23.9
2021 0.103 22.0
2022 0.110 20.4
2023 0.117 19.0
2024 0.124 17.7
2025 0.131 16.6
2026 0.138 15.6
2027 0.144 14.7
2028 0.151 13.9
2029 0.157 13.1
2030 0.163 12.4

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

grafico orbita





wds14330-4224e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14330-4224 HDS2054 1991 1 1 0.2 8.39 8.89 A7/A8IV 143257.08-422419.5
14330-4224 HDS2054 2009 3 108 0.0 8.39 8.89 A7/A8IV 143257.08-422419.5
14330-4224 HDS2054 2013 4 234 0.0 8.39 8.89 A7/A8IV 143257.08-422419.5
14330-4224 HDS2054 2014 5 44 0.1 8.39 8.89 A7/A8IV 143257.08-422419.5
14330-4224 HDS2054 2015 6 39 0.1 8.39 8.89 A7/A8IV 143257.08-422419.5

If you need more information about this double, apply for a data request form to the WDS.