19305-3149 B 972 (HD 183353)
19h 30m 27.58s -31° 49' 25.1" P.A. 185.00 sep 0.1 mag 9.80,9.80 Sp F2V
| Coord 2000 |
19305-3149 |
|
Discov num |
B 972 |
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Comp |
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Coord arcsec 2000 |
19 30 27.58 -31 49 25.1 |
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| Date first |
1927 |
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Date last |
2021 |
|
Obs |
15 |
|
| Pa first |
78 |
|
Pa last |
184.7 |
|
P.A. Now (θ) |
184.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.084 |
|
Sep. Now (ρ) |
0.084" |
|
| Mag pri |
9.80 |
|
Mag sec |
9.80 |
|
delta mag (ΔM) |
0 |
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Spectral class |
F2V (yellow-white) |
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| Pri motion ra |
+007 |
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Sec motion ra |
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| Pri motion dec |
-016 |
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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 183353 |
|
Constellation |
Sagittarius |
|
SAO |
211319 |
|
Tycho2 |
7425-01263-1 |
|
| Gaia DR2 |
6745945054107176192 |
|
HD |
183353 |
|
ORBITAL ELEMENTS
| Period (P) | 210.8y | |
Periastron (T) | 2010.98y | |
Semi-major axis (a) | 0.152a | |
| Eccentricity (e) | 0.681 | |
Inclination (i) | 144.8° | |
Longitude of periastron (ω) | 275° | |
| Node (Ω) | 183° | |
Notes | n | |
Reference | Tok2018b | |
| Equinox | 2000 | |
Last observation | 2017 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
359.4 |
0.082 |
| 2001 |
355.7 |
0.078 |
| 2002 |
351.5 |
0.073 |
| 2003 |
346.8 |
0.068 |
| 2004 |
341.4 |
0.063 |
| 2005 |
335.0 |
0.059 |
| 2006 |
327.5 |
0.054 |
| 2007 |
318.6 |
0.049 |
| 2008 |
308.0 |
0.045 |
| 2009 |
295.6 |
0.042 |
| 2010 |
281.5 |
0.040 |
| 2011 |
266.6 |
0.040 |
| 2012 |
252.0 |
0.041 |
| 2013 |
238.6 |
0.043 |
| 2014 |
227.0 |
0.047 |
| 2015 |
217.2 |
0.051 |
| 2016 |
208.9 |
0.056 |
| 2017 |
201.9 |
0.060 |
| 2018 |
195.9 |
0.065 |
| 2019 |
190.6 |
0.069 |
| 2020 |
186.0 |
0.074 |
| 2021 |
181.9 |
0.078 |
| 2022 |
178.3 |
0.082 |
| 2023 |
174.9 |
0.086 |
| 2024 |
171.9 |
0.090 |
| 2025 |
169.1 |
0.093 |
| 2026 |
166.5 |
0.097 |
| 2027 |
164.0 |
0.100 |
| 2028 |
161.8 |
0.104 |
| 2029 |
159.6 |
0.107 |
| 2030 |
157.6 |
0.110 |
|
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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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