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 174 250 0.3 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 2017 89 85 12.8 3.76 6.56 2.80
Show 132406 05387-0236 STF 762 AB,E 1777 2017 80 62 41.4 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 4 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 2017 32 252 23.9 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 2017 24 241 53.0 6.34 8.79 2.45
Show 132408 05387-0236 STF 762 ED 1779 2017 54 233 29.9 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
Cdsa2 id
NOI 6 Aa,Ab
Constellation
Orion
SAO
132406
HIP
26549
HD
37468
HR
1931
GC
7031
ADS
4241
BD
BD-02 1326
Bayer
Sigma Orionis
Bayer name
Sig Ori
Flamsteed
48 Orionis
Flamsteed name
48 Ori
Ra deg
5.645769444444444
De deg
-2.6000555555555556
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

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