09387-3937 I   202

 
 
09h 38m 40.71s -39 36' 50.9" P.A. 286.1 sep 0.24 mag 7.02,8.37 Sp F6V dist. 40.93 pc (133.51 l.y.)
 
 
Coord 2000
09387-3937
Discov num
I   202
Comp
Coord arcsec 2000
09 38 40.71 -39 36 50.9
Date first
1897
Date last
2015
Obs
26
Pa first
359
Pa last
299
P.A. Now (θ)
286.1°
Sep first
1.0
Sep last
0.3
Sep. Now (ρ)
0.24"
Mag pri
7.02
Mag sec
8.37
delta mag (ΔM)
1.35
Spectral class
F6V (yellow-white)
Pri motion ra
-046
Sec motion ra
-046
Pri motion dec
-064
Sec motion dec
-064
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
298.6
Precise sep
0.268
Constellation
Antlia
SAO
200590
HIP
47328
Tycho2
7696-01463-1
HD
83610
HR
3844
CD
CD-39 5697
CP
CP-39 3779
Distance
40.93
Distance ly
133.51
last precise pa
298.6
last precise sep
0.268
 
 
ORBITAL ELEMENTS
 
 
Period (P)163.69y± 3.53 Periastron (T)2005.49y± 0.67 Semi-major axis (a)0.932a± 0.017
Eccentricity (e)0.414± 0.012 Inclination (i)111.4°± 0.9 Longitude of periastron (ω)203.4°± 2.2
Node (Ω)178.6°± 1.1 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.566 1.4
2001 0.562 359.4
2002 0.555 357.4
2003 0.545 355.3
2004 0.532 353.1
2005 0.516 350.8
2006 0.497 348.3
2007 0.476 345.7
2008 0.452 342.7
2009 0.426 339.4
2010 0.399 335.7
2011 0.371 331.4
2012 0.344 326.5
2013 0.317 320.6
2014 0.292 313.7
2015 0.270 305.7
2016 0.254 296.4
2017 0.243 286.1
2018 0.240 275.1
2019 0.245 264.3
2020 0.257 254.1
2021 0.275 245.1
2022 0.298 237.4
2023 0.325 230.8
2024 0.355 225.3
2025 0.386 220.7
2026 0.418 216.7
2027 0.451 213.4
2028 0.485 210.5
2029 0.518 208.0
2030 0.551 205.7

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

grafico orbita





wds09387-3937c.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
09387-3937 I 202 1997 19 10 0.5 7.02 8.37 F6V OD 093840.71-393650.9
09387-3937 I 202 2009 21 158 0.4 7.02 8.37 F6V OD 093840.71-393650.9
09387-3937 I 202 2010 22 152 0.4 7.02 8.37 F6V OD 093840.71-393650.9
09387-3937 I 202 2013 23 320 0.3 7.02 8.37 F6V O 093840.71-393650.9
09387-3937 I 202 2014 24 313 0.3 7.02 8.37 F6V O 093840.71-393650.9
09387-3937 I 202 2015 26 299 0.3 7.02 8.37 F6V O 093840.71-393650.9

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