09118-4218 HDS1332

 
 
09h 11m 48.77s -42 17' 42.6" P.A. 207.8 sep 0.19 mag 11.21,11.54 Sp K5V dist. 80.06 pc (261.16 l.y.)
 
 
Coord 2000
09118-4218
Discov num
HDS1332
Comp
Coord arcsec 2000
09 11 48.77 -42 17 42.6
Date first
1991
Date last
2016
Obs
4
Pa first
33
Pa last
219
P.A. Now (θ)
207.8°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.19"
Mag pri
11.21
Mag sec
11.54
delta mag (ΔM)
0.33
Spectral class
K5V (yellow-orange)
Pri motion ra
-218
Sec motion ra
Pri motion dec
+186
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
218.6
Precise sep
0.166
Constellation
Vela
HIP
45139
Tycho2
7686-03062-1
Gaia DR2
90128838656
CD
CD-41 4886
CP
CP-41 3427
Distance
80.06
Distance ly
261.16
last precise pa
218.6
last precise sep
0.166
 
 
ORBITAL ELEMENTS
 
 
Period (P)113.447y Periastron (T)2012.227y Semi-major axis (a)0.313a
Eccentricity (e)0.5 Inclination (i)126.1° Longitude of periastron (ω)107.1°
Node (Ω)22.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.243 15.7
2001 0.230 12.8
2002 0.216 9.6
2003 0.201 6.0
2004 0.185 1.8
2005 0.169 356.7
2006 0.152 350.5
2007 0.135 342.7
2008 0.119 332.8
2009 0.105 320.1
2010 0.096 304.3
2011 0.093 286.4
2012 0.098 268.8
2013 0.108 253.6
2014 0.121 241.4
2015 0.136 231.8
2016 0.151 224.1
2017 0.166 217.8
2018 0.179 212.4
2019 0.191 207.8
2020 0.202 203.7
2021 0.211 200.0
2022 0.219 196.6
2023 0.226 193.4
2024 0.232 190.4
2025 0.237 187.5
2026 0.241 184.7
2027 0.244 182.0
2028 0.247 179.4
2029 0.249 176.8
2030 0.250 174.2

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

grafico orbita





wds09118-4218a.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
09118-4218 HDS1332 1991 1 33 0.3 11.21 11.54 K5V 091148.93-421744.1
09118-4218 HDS1332 2015 2 232 0.1 11.21 11.54 K5V 091148.93-421744.1
09118-4218 HDS1332 2016 4 219 0.2 11.21 11.54 K5V 091148.77-421742.6

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