17586-1306 HU 190 (HD 163810)
17h 58m 38.44s -13° 05' 49.8" P.A. 320.00 sep 0.2 mag 10.10,11.15 Sp G3V dist. 67.93 pc (221.59 l.y.)
| Coord 2000 |
17586-1306 |
|
Discov num |
HU 190 |
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Comp |
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Coord arcsec 2000 |
17 58 38.44 -13 05 49.8 |
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| Date first |
1900 |
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Date last |
2021 |
|
Obs |
15 |
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| Pa first |
218 |
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Pa last |
320.2 |
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P.A. Now (θ) |
320.2° |
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| Sep first |
0.5 |
|
Sep last |
0.236 |
|
Sep. Now (ρ) |
0.236" |
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| Mag pri |
10.10 |
|
Mag sec |
11.15 |
|
delta mag (ΔM) |
1.05 |
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Spectral class |
G3V (yellow) |
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| Pri motion ra |
-464 |
|
Sec motion ra |
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| Pri motion dec |
-721 |
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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.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 163810 |
|
Constellation |
Serpens |
|
SAO |
160955 |
|
HIP |
88010 |
|
| Tycho2 |
5682-00995-1 |
|
Gaia DR2 |
4150413750694944640 |
|
HD |
163810 |
|
ADS |
10938 |
|
| BD |
BD-13 4807 |
|
Distance |
67.93 |
|
Distance ly |
221.59 |
|
ORBITAL ELEMENTS
| Period (P) | 162.7y | ± 12.3 |
Periastron (T) | 2011.4y | ± 0.66 |
Semi-major axis (a) | 0.37a | ± 0.0142 |
| Eccentricity (e) | 0.422 | ± 0.027 |
Inclination (i) | 180° | |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 15.4° | ± 3.2 |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
76.3 |
0.252 |
| 2001 |
71.9 |
0.247 |
| 2002 |
67.3 |
0.241 |
| 2003 |
62.5 |
0.236 |
| 2004 |
57.5 |
0.232 |
| 2005 |
52.3 |
0.227 |
| 2006 |
46.9 |
0.224 |
| 2007 |
41.3 |
0.220 |
| 2008 |
35.6 |
0.218 |
| 2009 |
29.7 |
0.216 |
| 2010 |
23.8 |
0.215 |
| 2011 |
17.8 |
0.214 |
| 2012 |
11.8 |
0.214 |
| 2013 |
5.8 |
0.215 |
| 2014 |
359.9 |
0.216 |
| 2015 |
354.1 |
0.218 |
| 2016 |
348.4 |
0.221 |
| 2017 |
342.8 |
0.224 |
| 2018 |
337.5 |
0.228 |
| 2019 |
332.3 |
0.232 |
| 2020 |
327.3 |
0.237 |
| 2021 |
322.5 |
0.242 |
| 2022 |
318.0 |
0.248 |
| 2023 |
313.6 |
0.254 |
| 2024 |
309.4 |
0.260 |
| 2025 |
305.4 |
0.266 |
| 2026 |
301.6 |
0.272 |
| 2027 |
298.0 |
0.278 |
| 2028 |
294.6 |
0.285 |
| 2029 |
291.2 |
0.292 |
| 2030 |
288.1 |
0.298 |
|
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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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