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 |
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Discov num |
FIN 336 |
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Comp |
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Coord arcsec 2000 |
20 31 04.33 -15 03 21.8 |
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Date first |
1954 |
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Date last |
2021 |
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Obs |
43 |
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Pa first |
297 |
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Pa last |
332.3 |
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P.A. Now (θ) |
342.6° |
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Sep first |
0.1 |
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Sep last |
0.119 |
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Sep. Now (ρ) |
0.119" |
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Mag pri |
6.80 |
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Mag sec |
7.00 |
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delta mag (ΔM) |
0.2 |
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Spectral class |
gG5 |
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Pri motion ra |
-038 |
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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 |
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Constellation |
Capricornus |
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SAO |
163645 |
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HIP |
101221 |
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Tycho2 |
6329-02134-1 |
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Gaia DR2 |
6875393890936208256 |
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HD |
195330 |
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HR |
7837 |
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GC |
28533 |
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BD |
BD-15 5696 |
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Distance |
116.82 |
|
Distance ly |
381.07 |
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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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