09191-4128 CHR 239

 
 
09h 19m 04.43s -41 28' 05.6" P.A. 271.5 sep 0.15 mag 7.50,8.80 Sp G2V dist. 48.12 pc (156.97 l.y.)
 
 
Coord 2000
09191-4128
Discov num
CHR 239
Comp
Coord arcsec 2000
09 19 04.43 -41 28 05.6
Date first
1996
Date last
2016
Obs
15
Pa first
273
Pa last
290
P.A. Now (θ)
271.5°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.15"
Mag pri
7.50
Mag sec
8.80
delta mag (ΔM)
1.3
Spectral class
G2V (yellow)
Pri motion ra
-052
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
290.3
Precise sep
0.14
Cdsa2 id
CHR 239
Constellation
Vela
SAO
221055
HIP
45705
Tycho2
7686-00237-1
HD
80542
CD
CD-40 5108
CP
CP-40 3394
Ra deg
9.317897222222221
De deg
-41.468222222222224
Distance
48.12
Distance ly
156.97
last precise pa
290.3
last precise sep
0.14
 
 
ORBITAL ELEMENTS
 
 
Period (P)10.86y± 0.02 Periastron (T)2013.51y± 0.02 Semi-major axis (a)0.122a± 0.001
Eccentricity (e)0.394± 0.006 Inclination (i)147°± 1.3 Longitude of periastron (ω)260.1°± 1.9
Node (Ω)332.6°± 2.3 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.125 197.2
2001 0.109 169.8
2002 0.079 126.8
2003 0.066 40.9
2004 0.101 342.4
2005 0.128 313.6
2006 0.140 292.7
2007 0.145 274.1
2008 0.144 255.8
2009 0.140 237.0
2010 0.134 216.7
2011 0.124 193.8
2012 0.106 165.2
2013 0.074 117.7
2014 0.069 29.1
2015 0.106 337.4
2016 0.130 310.4
2017 0.141 290.0
2018 0.145 271.5
2019 0.143 253.2
2020 0.139 234.2
2021 0.132 213.7
2022 0.122 190.3
2023 0.102 160.2
2024 0.070 107.4
2025 0.074 18.8
2026 0.110 332.8
2027 0.132 307.3
2028 0.142 287.3
2029 0.145 269.0
2030 0.143 250.6

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

grafico orbita





wds09191-4128a.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
09191-4128 CHR 239 1996 1 93 0.1 7.50 8.80 G2V D 091904.43-412805.6
09191-4128 CHR 239 2001 2 167 0.1 7.50 8.80 G2V D 091904.43-412805.6
09191-4128 CHR 239 2011 3 12 0.1 7.50 8.80 G2V D 091904.43-412805.6
09191-4128 CHR 239 2012 5 345 0.1 7.50 8.80 G2V D 091904.43-412805.6
09191-4128 CHR 239 2013 6 288 0.1 7.50 8.80 G2V D 091904.43-412805.6
09191-4128 CHR 239 2014 11 191 0.1 7.50 8.80 G2V NO 091904.43-412805.6
09191-4128 CHR 239 2015 13 313 0.1 7.50 8.80 G2V NO 091904.43-412805.6
09191-4128 CHR 239 2016 15 290 0.1 7.50 8.80 G2V NO 091904.43-412805.6

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