05387-0236 NOI   6Aa,Ab

 
 
05h 38m 44.77s -02 36' 00.2" P.A. 164 mag 4.07, Sp O9V dist. 328.95 pc (1073.03 l.y.)
 
 
Coord 2000
05387-0236
Discov num
NOI   6
Comp
Aa,Ab
Coord arcsec 2000
05 38 44.77 -02 36 00.2
Date first
2006
Date last
2013
Obs
26
Pa first
187
Pa last
164
P.A. Now (θ)
164°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
4.07
Mag sec
delta mag (ΔM)
Spectral class
O9V (blue)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
05387-0236 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 132406 05387-0236 NOI 6 Aa,Ab 2006 2013 26 164 0.0 4.07 Y <===
Show Sig Ori 132406 05387-0236 BU 1032 AB 1888 2015 173 71 0.2 4.07 5.27 1.20 Y
Show 132406 05387-0236 STF 762 AB,C 1831 2016 44 237 11.6 3.76 8.79 5.03
Show 132406 05387-0236 STF 762 AB,D 1779 2016 87 85 12.9 3.76 6.56 2.80
Show 132406 05387-0236 STF 762 AB,E 1777 2016 79 62 41.5 3.76 6.34 2.58
Show 132406 05387-0236 STF3135 AB,F 1823 2016 13 324 208.0 3.76 7.86 4.10
Show 132406 05387-0236 TRN 19 AB,G 2001 2008 3 20 3.2 3.76 12.00 8.24
Show 132406 05387-0236 SHJ 65 AB,H 1823 2016 7 125 306.9 3.76 8.06 4.30
Show 132406 05387-0236 SHJ 65 AB,I 1823 2016 6 60 524.7 3.76 8.44 4.68
Show 132406 05387-0236 CAB 26 Ca,Cb 2003 2007 2 12 2.0 9.10 14.50 5.40
Show 132408 05387-0236 STF 762 DC 1831 2013 31 252 23.8 6.56 8.79 2.23
Show 132408 05387-0236 RAS 22 Ea,Eb 2007 2010 3 303 0.3 6.60 11.30 4.70
Show 132408 05387-0236 STF 762 EC 1831 2013 23 241 52.8 6.34 8.79 2.45
Show 132408 05387-0236 STF 762 ED 1779 2015 53 232 29.7 6.34 6.56 0.22
Show 05387-0236 CAB 26 Ha,Hb 2003 2003 0 0.5 13.34
Show 05387-0236 BOY 24 Ja,Jb 2004 2007 2 317 0.2 10.60 12.80 2.20
16-fold system
10 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
164.1
Precise sep
0.003
Constellation
Orion
SAO
132406
HIP
26549
HD
37468
HR
1931
GC
7031
BD
BD-02 1326
Bayer
Sigma Orionis
Bayer name
Sig Ori
Flamsteed
48 Orionis
Flamsteed name
48 Ori
Distance
328.95
Distance ly
1073.03
last precise pa
164.1
last precise sep
0.003
 
 
ORBITAL ELEMENTS
 
 
Period (P)143.2002d± 0.0024 Periastron (T)56597.638d (2013.835y)± 0.014 Semi-major axis (a)4.286m± 0.0107
Eccentricity (e)0.77896± 0.00043 Inclination (i)56.378°± 0.085 Longitude of periastron (ω)199.83°± 0.12
Node (Ω)6.878°± 0.079 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000-01-01 0.006 29.1
2001-01-01 0.006 7.4
2002-01-01 0.004 38.5
2003-01-01 0.007 12.4
2004-01-01 0.002 64.3
2005-01-01 0.007 16.7
2006-01-01 0.001 262.8
2007-01-01 0.007 21.1
2008-01-01 0.004 354.9
2009-01-01 0.006 26.3
2010-01-01 0.006 4.6
2011-01-01 0.005 33.6
2012-01-01 0.007 10.3
2013-01-01 0.003 48.3
2014-01-01 0.007 14.8
2015-01-01 0.001 133.2
2016-01-01 0.007 19.1
2017-01-01 0.003 345.0
2018-01-01 0.007 23.9
2019-01-01 0.005 1.2
2020-01-01 0.006 29.9
2021-01-01 0.007 8.0
2022-01-01 0.004 40.0
2023-01-01 0.007 12.9
2024-01-01 0.002 71.4
2025-01-01 0.007 17.2
2026-01-01 0.001 304.4
2027-01-01 0.007 21.7
2028-01-01 0.004 356.5
2029-01-01 0.006 27.0
2030-01-01 0.006 5.4

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

grafico orbita





wds05387-0236c.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
05387-0236 NOI 6 Aa,Ab 2013 26 164 0.0 4.07   O9V NO 053844.77-023600.2

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