16544-3806 HDS 2392 (HD 152331)
16h 54m 22.12s -38° 05' 53.5" P.A. 128.00 sep 0.3 mag 8.66,10.97 Sp G0V dist. 64.27 pc (209.65 l.y.)
| Coord 2000 |
16544-3806 |
|
Discov num |
HDS2392 |
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Comp |
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Coord arcsec 2000 |
16 54 22.12 -38 05 53.5 |
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| Date first |
1991 |
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Date last |
2021 |
|
Obs |
11 |
|
| Pa first |
143 |
|
Pa last |
127.9 |
|
P.A. Now (θ) |
118.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.264 |
|
Sep. Now (ρ) |
0.267" |
|
| Mag pri |
8.66 |
|
Mag sec |
10.97 |
|
delta mag (ΔM) |
2.31 |
|
Spectral class |
G0V (yellow) |
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| Pri motion ra |
-060 |
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Sec motion ra |
|
|
| Pri motion dec |
-058 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 152331 |
|
Constellation |
Scorpius |
|
SAO |
208162 |
|
HIP |
82709 |
|
| Tycho2 |
7868-00063-1 |
|
Gaia DR2 |
5971248471386452736 |
|
HD |
152331 |
|
CD |
CD-3711065 |
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| CP |
CP-37 6781 |
|
Distance |
64.27 |
|
Distance ly |
209.65 |
|
ORBITAL ELEMENTS
| Period (P) | 26.48y | ± 0.67 |
Periastron (T) | 2009.459y | ± 0.086 |
Semi-major axis (a) | 0.1858a | ± 0.0045 |
| Eccentricity (e) | 0.5 | |
Inclination (i) | 134.7° | ± 2 |
Longitude of periastron (ω) | 154.8° | ± 2.8 |
| Node (Ω) | 101.3° | ± 3.2 |
Notes | | |
Reference | Tok2016e | |
| Equinox | 2000 | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
104.5 |
0.261 |
| 2001 |
100.2 |
0.252 |
| 2002 |
95.4 |
0.238 |
| 2003 |
90.0 |
0.219 |
| 2004 |
83.3 |
0.196 |
| 2005 |
74.7 |
0.168 |
| 2006 |
62.3 |
0.136 |
| 2007 |
41.7 |
0.103 |
| 2008 |
5.0 |
0.079 |
| 2009 |
317.8 |
0.081 |
| 2010 |
281.5 |
0.096 |
| 2011 |
252.7 |
0.102 |
| 2012 |
226.3 |
0.106 |
| 2013 |
202.9 |
0.116 |
| 2014 |
184.0 |
0.132 |
| 2015 |
169.6 |
0.151 |
| 2016 |
158.5 |
0.171 |
| 2017 |
149.8 |
0.191 |
| 2018 |
142.7 |
0.210 |
| 2019 |
136.7 |
0.227 |
| 2020 |
131.5 |
0.241 |
| 2021 |
126.8 |
0.252 |
| 2022 |
122.5 |
0.261 |
| 2023 |
118.4 |
0.267 |
| 2024 |
114.4 |
0.270 |
| 2025 |
110.5 |
0.269 |
| 2026 |
106.5 |
0.265 |
| 2027 |
102.3 |
0.257 |
| 2028 |
97.8 |
0.245 |
| 2029 |
92.7 |
0.229 |
| 2030 |
86.7 |
0.208 |
|
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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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