16540-4148 SNA  51Fa,Fb

 
 
16h 54m 03.58s -41 47' 29.9" P.A. 54 mag 6.30,8.30 Sp O6Ib
 
 
Coord 2000
16540-4148
Discov num
SNA  51
Comp
Fa,Fb
Coord arcsec 2000
16 54 03.58 -41 47 29.9
Date first
2011
Date last
2014
Obs
16
Pa first
46
Pa last
54
P.A. Now (θ)
54°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
6.30
Mag sec
8.30
delta mag (ΔM)
2
Spectral class
O6Ib (blue)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
This double is physical.
 
 
16540-4148 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227377 16540-4148 SNA 51 Aa,Ab 2011 2011 1 153 0.0 5.10 7.00 1.90
Show 227377 16540-4148 B 1833 AB 1897 2006 8 75 0.5 5.65 7.92 2.27
Show 227377 16540-4148 B 1833 AC 1931 1931 1 101 5.5 5.65 13.80 8.15
Show 227377 16540-4148 SEE 293 AD 1897 1999 4 127 19.1 5.66 13.70 8.04
Show 227377 16540-4148 SEE 293 AE 1897 1999 5 281 20.5 5.66 13.00 7.34
Show 227377 16540-4148 JC 23 AF 1847 1999 13 20 56.5 5.65 6.56 0.91
Show 227380 16540-4148 SNA 51 Fa,Fb 2011 2014 16 54 0.0 6.30 8.30 2.00 Y <===
Show 227380 16540-4148 SEE 294 FG 1897 1999 4 48 6.2 6.59 13.00 6.41
Show 227380 16540-4148 HJ 4892 FH 1834 1999 12 299 8.7 6.59 9.60 3.01
Decuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
54.2
Precise sep
0.004
Constellation
Scorpius
SAO
227380
Tycho2
7876-02254-1
HD
152233
last precise pa
54.2
last precise sep
0.004
 
 
ORBITAL ELEMENTS
 
 
Period (P)871.3d (2.39y)± 4.6 Periastron (T)56276d (2012.954y)± 11 Semi-major axis (a)4.15m± 0.09
Eccentricity (e)0.543± 0.011 Inclination (i)84.7°± 1.5 Longitude of periastron (ω)192°± 5.1
Node (Ω)49.4°± 1 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000-01-01 0.006 51.4
2001-01-01 0.002 229.0
2002-01-01 0.006 49.4
2003-01-01 0.002 61.4
2004-01-01 0.005 46.9
2005-01-01 0.005 53.0
2006-01-01 0.001 24.6
2007-01-01 0.006 50.6
2008-01-01 0.001 213.6
2009-01-01 0.006 48.6
2010-01-01 0.003 55.9
2011-01-01 0.003 44.9
2012-01-01 0.006 51.9
2013-01-01 0.002 233.7
2014-01-01 0.006 49.8
2015-01-01 0.001 69.8
2016-01-01 0.005 47.5
2017-01-01 0.004 53.7
2018-01-01 0.002 39.2
2019-01-01 0.006 51.0
2020-01-01 0.002 223.8
2021-01-01 0.006 49.0
2022-01-01 0.003 57.6
2023-01-01 0.004 46.0
2024-01-01 0.005 52.3
2025-01-01 0.001 247.3
2026-01-01 0.006 50.1
2027-01-01 121.2
2028-01-01 0.006 48.0
2029-01-01 0.004 54.5
2030-01-01 0.002 42.9

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

grafico orbita





wds16540-4148a.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
16540-4148 SNA 51 Fa,Fb 2012 1 60 0.0 6.30 8.30 O6Ib NV K 165403.58-414729.9
16540-4148 SNA 51 Fa,Fb 2014 16 54 0.0 6.30 8.30 O6Ib NV K 165403.58-414729.9

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