16329+0315 DSG 7 Aa,Ab (HD 149162)
16h 32m 51.62s +03° 14' 45.7" P.A. 16.00 sep 0.0 mag 9.00,10.50 Sp K1V+K6V dist. 43.22 pc (140.98 l.y.)
Coord 2000 |
16329+0315 |
|
Discov num |
DSG 7 |
|
Comp |
Aa,Ab |
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Coord arcsec 2000 |
16 32 51.62 +03 14 45.7 |
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Date first |
2013 |
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Date last |
2018 |
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Obs |
8 |
|
Pa first |
327 |
|
Pa last |
15.5 |
|
P.A. Now (θ) |
15.5° |
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Sep first |
0.0 |
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Sep last |
0.007 |
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Sep. Now (ρ) |
0.007" |
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Mag pri |
9.00 |
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Mag sec |
10.50 |
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delta mag (ΔM) |
1.5 |
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Spectral class |
K1V+K6V (yellow-orange/yellow-orange) |
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Pri motion ra |
-375 |
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Sec motion ra |
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Pri motion dec |
-181 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
16329+0315 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 149162 |
121679 |
16 32 52 +03 14 46 |
DSG 7 Aa,Ab |
2018 |
8 |
16 |
0.0 |
9.00 |
10.50 |
1.50 |
Y |
<=== |
Show |
|
121679 |
16 32 52 +03 14 46 |
DSG 7 Aa,Ac |
2018 |
7 |
243 |
0.3 |
9.00 |
14.50 |
5.50 |
|
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Show |
|
121679 |
16 32 52 +03 14 46 |
LEP 79 AB |
2015 |
7 |
138 |
252.0 |
9.43 |
14.54 |
5.11 |
|
|
Show |
|
|
16 33 03 +03 11 37 |
DAM 649 BC |
2016 |
12 |
137 |
6.4 |
14.54 |
17.90 |
3.36 |
|
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Quintuple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 149162 |
|
Constellation |
Ophiuchus |
|
SAO |
121679 |
|
HIP |
81023 |
|
Tycho2 |
0386-01338-1 |
|
HD |
149162 |
|
GL |
Wo 9566 |
|
BD |
BD+03 3215 |
|
Distance |
43.22 |
|
Distance ly |
140.98 |
|
ORBITAL ELEMENTS
Period (P) | 0.61867y | ± 0.00033 |
Periastron (T) | 1988.4316y | ± 0.003 |
Semi-major axis (a) | 16m | ± 1.2 |
Eccentricity (e) | 0.3067 | ± 0.0088 |
Inclination (i) | 117.9° | ± 8.2 |
Longitude of periastron (ω) | 20.46° | ± 1.74 |
Node (Ω) | 162.7° | ± 8.2 |
Notes | n | |
Reference | Hor2019 | |
Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
299.5 |
0.011 |
2001 |
351.9 |
0.018 |
2002 |
175.5 |
0.011 |
2003 |
327.5 |
0.019 |
2004 |
28.2 |
0.009 |
2005 |
260.0 |
0.008 |
2006 |
343.0 |
0.020 |
2007 |
147.6 |
0.010 |
2008 |
315.8 |
0.015 |
2009 |
2.4 |
0.015 |
2010 |
204.5 |
0.009 |
2011 |
334.9 |
0.020 |
2012 |
88.7 |
0.006 |
2013 |
295.2 |
0.011 |
2014 |
350.4 |
0.019 |
2015 |
171.3 |
0.011 |
2016 |
326.0 |
0.018 |
2017 |
22.1 |
0.010 |
2018 |
251.0 |
0.008 |
2019 |
341.7 |
0.020 |
2020 |
141.9 |
0.009 |
2021 |
313.4 |
0.015 |
2022 |
0.1 |
0.015 |
2023 |
197.9 |
0.009 |
2024 |
333.7 |
0.020 |
2025 |
74.5 |
0.006 |
2026 |
290.3 |
0.010 |
2027 |
348.9 |
0.019 |
2028 |
167.1 |
0.011 |
2029 |
324.3 |
0.018 |
2030 |
17.1 |
0.011 |
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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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