20311-1503 FIN 336 (HD 195330)
20h 31m 04.33s -15° 03' 21.8" P.A. 332.00 sep 0.1 mag 6.80,7.00 Sp gG5 dist. 116.82 pc (381.07 l.y.)
| Coord 2000 |
20311-1503 |
|
Discov num |
FIN 336 |
|
Comp |
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Coord arcsec 2000 |
20 31 04.33 -15 03 21.8 |
|
| Date first |
1954 |
|
Date last |
2021 |
|
Obs |
43 |
|
| Pa first |
297 |
|
Pa last |
332.3 |
|
P.A. Now (θ) |
342.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.119 |
|
Sep. Now (ρ) |
0.119" |
|
| Mag pri |
6.80 |
|
Mag sec |
7.00 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
gG5 |
|
| Pri motion ra |
-038 |
|
Sec motion ra |
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|
| Pri motion dec |
-046 |
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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 195330 |
|
Constellation |
Capricornus |
|
SAO |
163645 |
|
HIP |
101221 |
|
| Tycho2 |
6329-02134-1 |
|
Gaia DR2 |
6875393890936208256 |
|
HD |
195330 |
|
HR |
7837 |
|
| GC |
28533 |
|
BD |
BD-15 5696 |
|
Distance |
116.82 |
|
Distance ly |
381.07 |
|
ORBITAL ELEMENTS
| Period (P) | 50.66y | |
Periastron (T) | 1949.71y | |
Semi-major axis (a) | 0.168a | |
| Eccentricity (e) | 0.656 | |
Inclination (i) | 68.3° | |
Longitude of periastron (ω) | 81.4° | |
| Node (Ω) | 106.4° | |
Notes | | |
Reference | Msn2017g | |
| Equinox | 2000 | |
Last observation | 2017 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
144.6 |
0.032 |
| 2001 |
239.5 |
0.029 |
| 2002 |
271.3 |
0.061 |
| 2003 |
281.4 |
0.089 |
| 2004 |
287.1 |
0.109 |
| 2005 |
291.3 |
0.123 |
| 2006 |
294.6 |
0.134 |
| 2007 |
297.6 |
0.142 |
| 2008 |
300.3 |
0.147 |
| 2009 |
302.8 |
0.150 |
| 2010 |
305.2 |
0.152 |
| 2011 |
307.6 |
0.153 |
| 2012 |
310.0 |
0.153 |
| 2013 |
312.4 |
0.152 |
| 2014 |
314.9 |
0.150 |
| 2015 |
317.4 |
0.148 |
| 2016 |
320.0 |
0.145 |
| 2017 |
322.8 |
0.142 |
| 2018 |
325.6 |
0.138 |
| 2019 |
328.6 |
0.135 |
| 2020 |
331.8 |
0.131 |
| 2021 |
335.2 |
0.127 |
| 2022 |
338.8 |
0.123 |
| 2023 |
342.6 |
0.119 |
| 2024 |
346.7 |
0.116 |
| 2025 |
351.0 |
0.112 |
| 2026 |
355.6 |
0.109 |
| 2027 |
0.4 |
0.106 |
| 2028 |
5.5 |
0.104 |
| 2029 |
10.8 |
0.102 |
| 2030 |
16.2 |
0.101 |
|
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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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