16540-4148 SNA 51 Fa,Fb
16h 54m 03.58s -41° 47' 29.9" P.A. 54.00 sep 0.0 mag 6.30,8.30 Sp O6Ib
Coord 2000 |
16540-4148 |
|
Discov num |
SNA 51 |
|
Comp |
Fa,Fb |
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Coord arcsec 2000 |
16 54 03.58 -41 47 29.9 |
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Date first |
2011 |
|
Date last |
2014 |
|
Obs |
16 |
|
Pa first |
46 |
|
Pa last |
54.2 |
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P.A. Now (θ) |
54.2° |
|
Sep first |
0.0 |
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Sep last |
0.004 |
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Sep. Now (ρ) |
0.004" |
|
Mag pri |
6.30 |
|
Mag sec |
8.30 |
|
delta mag (ΔM) |
2 |
|
Spectral class |
O6Ib (blue) |
|
Pri motion ra |
-002 |
|
Sec motion ra |
|
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Pri motion dec |
-009 |
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Sec motion dec |
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Notes |
N
V
K
(See Notes, Proper motion indicates physical, K-band or other infrared magnitudes) |
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Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
16540-4148 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
227377 |
16 54 02 -41 48 23 |
SNA 51 Aa,Ab |
2011 |
1 |
153 |
0.0 |
5.10 |
7.00 |
1.90 |
|
|
Show |
HD 152234 |
227377 |
16 54 02 -41 48 23 |
B 1833 AB |
2006 |
8 |
75 |
0.5 |
5.65 |
7.92 |
2.27 |
|
|
Show |
|
227377 |
16 54 02 -41 48 23 |
B 1833 AC |
2015 |
2 |
99 |
5.4 |
5.65 |
13.80 |
8.15 |
|
|
Show |
|
227377 |
16 54 02 -41 48 23 |
SEE 293 AD |
1999 |
4 |
127 |
19.1 |
5.66 |
13.70 |
8.04 |
|
|
Show |
|
227377 |
16 54 02 -41 48 23 |
SEE 293 AE |
1999 |
5 |
281 |
20.5 |
5.66 |
13.00 |
7.34 |
|
|
Show |
|
227377 |
16 54 02 -41 48 23 |
JC 23 AF |
2018 |
15 |
19 |
56.7 |
5.65 |
6.56 |
0.91 |
|
|
Show |
|
227380 |
16 54 04 -41 47 30 |
SNA 51 Fa,Fb |
2014 |
16 |
54 |
0.0 |
6.30 |
8.30 |
2.00 |
Y |
<=== |
Show |
|
227380 |
16 54 04 -41 47 30 |
SEE 294 FG |
2015 |
5 |
47 |
6.7 |
6.59 |
13.00 |
6.41 |
|
|
Show |
|
227380 |
16 54 04 -41 47 30 |
HJ 4892 FH |
2015 |
13 |
300 |
8.8 |
6.59 |
9.60 |
3.01 |
|
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Decuple system
8 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Scorpius |
|
SAO |
227380 |
|
Tycho2 |
7876-02254-1 |
|
Gaia DR2 |
5966510229078336768 |
|
HD |
152233 |
|
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 |
Notes | n | |
Reference | LeB2017 | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
51.4 |
0.006 |
2001-01-01 |
229.0 |
0.002 |
2002-01-01 |
49.4 |
0.006 |
2003-01-01 |
61.4 |
0.002 |
2004-01-01 |
46.9 |
0.005 |
2005-01-01 |
53.0 |
0.005 |
2006-01-01 |
24.6 |
0.001 |
2007-01-01 |
50.6 |
0.006 |
2008-01-01 |
213.6 |
0.001 |
2009-01-01 |
48.6 |
0.006 |
2010-01-01 |
55.9 |
0.003 |
2011-01-01 |
44.9 |
0.003 |
2012-01-01 |
51.9 |
0.006 |
2013-01-01 |
233.7 |
0.002 |
2014-01-01 |
49.8 |
0.006 |
2015-01-01 |
69.8 |
0.001 |
2016-01-01 |
47.5 |
0.005 |
2017-01-01 |
53.7 |
0.004 |
2018-01-01 |
39.2 |
0.002 |
2019-01-01 |
51.0 |
0.006 |
2020-01-01 |
223.8 |
0.002 |
2021-01-01 |
49.0 |
0.006 |
2022-01-01 |
57.6 |
0.003 |
2023-01-01 |
46.0 |
0.004 |
2024-01-01 |
52.3 |
0.005 |
2025-01-01 |
247.3 |
0.001 |
2026-01-01 |
50.1 |
0.006 |
2027-01-01 |
121.2 |
|
2028-01-01 |
48.0 |
0.006 |
2029-01-01 |
54.5 |
0.004 |
2030-01-01 |
42.9 |
0.002 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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