16413-4846 SNA 1 Aa,Ab
16h 41m 20.42s -48° 45' 46.7" P.A. 294.00 sep 0.0 mag 5.71, Sp O6.5V dist. 321.54 pc (1048.86 l.y.)
Coord 2000 |
16413-4846 |
|
Discov num |
SNA 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
16 41 20.42 -48 45 46.7 |
|
Date first |
2012 |
|
Date last |
2016 |
|
Obs |
24 |
|
Pa first |
239 |
|
Pa last |
293.8 |
|
P.A. Now (θ) |
293.8° |
|
Sep first |
0.0 |
|
Sep last |
0.012 |
|
Sep. Now (ρ) |
0.012" |
|
Mag pri |
5.71 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
O6.5V (blue) |
|
Pri motion ra |
+033 |
|
Sec motion ra |
|
|
Pri motion dec |
-004 |
|
Sec motion dec |
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|
Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
16413-4846 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
227049 |
16 41 20 -48 45 47 |
SNA 1 Aa,Ab |
2016 |
24 |
294 |
0.0 |
5.71 |
|
|
Y |
<=== |
Show |
HD 150136 |
227049 |
16 41 20 -48 45 47 |
MLO 8 AB |
2015 |
12 |
11 |
1.7 |
5.71 |
8.40 |
2.69 |
|
|
Show |
|
227049 |
16 41 20 -48 45 47 |
DUN 206 AC |
2016 |
30 |
265 |
10.2 |
5.71 |
6.76 |
1.05 |
|
|
Show |
|
227049 |
16 41 20 -48 45 47 |
HJ 4876 AD |
2016 |
13 |
161 |
13.3 |
5.71 |
10.50 |
4.79 |
|
|
Show |
|
227049 |
16 41 20 -48 45 47 |
HJ 4876 AE |
2010 |
8 |
11 |
18.6 |
5.71 |
11.40 |
5.69 |
|
|
Show |
|
227049 |
16 41 20 -48 45 47 |
I 96 AF |
2015 |
6 |
192 |
20.8 |
5.71 |
12.50 |
6.79 |
|
|
Show |
|
227048 |
16 41 19 -48 45 48 |
SNA 1 Ca,Cb |
2012 |
1 |
255 |
0.0 |
7.00 |
7.20 |
0.20 |
|
|
Show |
|
227048 |
16 41 19 -48 45 48 |
SNA 1 CG |
2012 |
1 |
221 |
4.3 |
6.30 |
9.64 |
3.34 |
|
|
Ninefold system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ara |
|
SAO |
227049 |
|
HIP |
81702 |
|
Tycho2 |
8334-01503-1 |
|
Gaia DR2 |
5940954177259978880 |
|
HD |
150136 |
|
HR |
6187 |
|
CD |
CD-4811070 |
|
Distance |
321.54 |
|
Distance ly |
1048.86 |
|
ORBITAL ELEMENTS
Period (P) | 3144.7d (8.609999999999999y) | ± 7.4 |
Periastron (T) | 51025.82d (1998.58y) | ± 16.55 |
Semi-major axis (a) | 17.03m | ± 0.1 |
Eccentricity (e) | 0.682 | ± 0.002 |
Inclination (i) | 106.18° | ± 0.14 |
Longitude of periastron (ω) | 248.47° | ± 0.24 |
Node (Ω) | 293.73° | ± 0.19 |
Notes | | |
Reference | XXX2018b | |
Equinox | 2000 | |
Last observation | 2017 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
285.6 |
0.017 |
2001-01-01 |
277.7 |
0.018 |
2002-01-01 |
269.1 |
0.016 |
2003-01-01 |
256.7 |
0.012 |
2004-01-01 |
233.6 |
0.009 |
2005-01-01 |
187.9 |
0.007 |
2006-01-01 |
143.1 |
0.009 |
2007-01-01 |
108.8 |
0.006 |
2008-01-01 |
292.2 |
0.013 |
2009-01-01 |
282.4 |
0.018 |
2010-01-01 |
274.6 |
0.017 |
2011-01-01 |
265.0 |
0.015 |
2012-01-01 |
249.6 |
0.011 |
2013-01-01 |
218.6 |
0.008 |
2014-01-01 |
167.8 |
0.007 |
2015-01-01 |
131.0 |
0.009 |
2016-01-01 |
317.8 |
0.004 |
2017-01-01 |
287.6 |
0.016 |
2018-01-01 |
279.4 |
0.018 |
2019-01-01 |
271.2 |
0.016 |
2020-01-01 |
260.0 |
0.013 |
2021-01-01 |
240.2 |
0.009 |
2022-01-01 |
199.6 |
0.007 |
2023-01-01 |
151.0 |
0.008 |
2024-01-01 |
118.9 |
0.008 |
2025-01-01 |
296.0 |
0.011 |
2026-01-01 |
284.2 |
0.017 |
2027-01-01 |
276.3 |
0.018 |
2028-01-01 |
267.4 |
0.015 |
2029-01-01 |
253.8 |
0.012 |
2030-01-01 |
227.5 |
0.008 |
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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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