20202-3435 I 1416 (HD 193194)
20h 20m 14.47s -34° 35' 06.6" P.A. 323.00 sep 0.1 mag 7.09,8.19 Sp F8V dist. 62.19 pc (202.86 l.y.)
Coord 2000 |
20202-3435 |
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Discov num |
I 1416 |
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Comp |
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Coord arcsec 2000 |
20 20 14.47 -34 35 06.6 |
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Date first |
1925 |
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Date last |
2021 |
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Obs |
42 |
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Pa first |
213 |
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Pa last |
322.9 |
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P.A. Now (θ) |
315.1° |
|
Sep first |
0.3 |
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Sep last |
0.092 |
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Sep. Now (ρ) |
0.172" |
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Mag pri |
7.09 |
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Mag sec |
8.19 |
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delta mag (ΔM) |
1.1 |
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Spectral class |
F8V (yellow-white) |
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Pri motion ra |
+053 |
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Sec motion ra |
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Pri motion dec |
-060 |
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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 193194 |
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Constellation |
Sagittarius |
|
SAO |
212015 |
|
HIP |
100266 |
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Tycho2 |
7450-01687-1 |
|
Gaia DR2 |
6696275578391882368 |
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HD |
193194 |
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GC |
28253 |
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CD |
CD-3414287 |
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CP |
CP-34 8654 |
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Distance |
62.19 |
|
Distance ly |
202.86 |
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ORBITAL ELEMENTS
Period (P) | 20.29y | ± 0.14 |
Periastron (T) | 2000.31y | ± 0.23 |
Semi-major axis (a) | 0.167a | ± 0.007 |
Eccentricity (e) | 0.887 | ± 0.036 |
Inclination (i) | 112.9° | ± 2.5 |
Longitude of periastron (ω) | 38.5° | ± 5.8 |
Node (Ω) | 140° | ± 4.7 |
Notes | | |
Reference | Tok2021c | |
Equinox | 2000 | |
Last observation | 2021 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
178.1 |
0.025 |
2001 |
325.6 |
0.075 |
2002 |
317.7 |
0.141 |
2003 |
314.3 |
0.183 |
2004 |
312.0 |
0.212 |
2005 |
310.2 |
0.233 |
2006 |
308.7 |
0.248 |
2007 |
307.3 |
0.258 |
2008 |
306.0 |
0.263 |
2009 |
304.7 |
0.264 |
2010 |
303.4 |
0.261 |
2011 |
302.1 |
0.254 |
2012 |
300.6 |
0.244 |
2013 |
299.1 |
0.231 |
2014 |
297.3 |
0.213 |
2015 |
295.1 |
0.193 |
2016 |
292.4 |
0.168 |
2017 |
288.6 |
0.139 |
2018 |
282.5 |
0.105 |
2019 |
269.8 |
0.066 |
2020 |
217.4 |
0.028 |
2021 |
332.9 |
0.046 |
2022 |
319.1 |
0.125 |
2023 |
315.1 |
0.172 |
2024 |
312.6 |
0.205 |
2025 |
310.7 |
0.228 |
2026 |
309.1 |
0.245 |
2027 |
307.7 |
0.256 |
2028 |
306.3 |
0.262 |
2029 |
305.1 |
0.264 |
2030 |
303.8 |
0.262 |
2031 |
302.5 |
0.256 |
2032 |
301.1 |
0.247 |
2033 |
299.5 |
0.235 |
2034 |
297.8 |
0.219 |
2035 |
295.8 |
0.199 |
2036 |
293.2 |
0.176 |
2037 |
289.8 |
0.148 |
2038 |
284.6 |
0.115 |
2039 |
274.8 |
0.078 |
2040 |
243.3 |
0.037 |
2041 |
31.6 |
0.010 |
2042 |
321.0 |
0.107 |
2043 |
316.0 |
0.160 |
2044 |
313.2 |
0.196 |
2045 |
311.2 |
0.222 |
2046 |
309.5 |
0.240 |
2047 |
308.1 |
0.253 |
2048 |
306.7 |
0.260 |
2049 |
305.4 |
0.264 |
2050 |
304.2 |
0.263 |
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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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