19436-1528 BUP 197 (HD 186185)
19h 43m 33.45s -15° 28' 10.8" P.A. 124.00 sep 58.6 mag 5.49,11.70 Sp F5IV dist. 48.92 pc (159.58 l.y.)
| Coord 2000 |
19436-1528 |
|
Discov num |
BUP 197 |
|
Comp |
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Coord arcsec 2000 |
19 43 33.45 -15 28 10.8 |
|
| Date first |
1910 |
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Date last |
2010 |
|
Obs |
6 |
|
| Pa first |
129 |
|
Pa last |
123.5 |
|
P.A. Now (θ) |
123.5° |
|
| Sep first |
81.8 |
|
Sep last |
58.63 |
|
Sep. Now (ρ) |
58.63" |
|
| Mag pri |
5.49 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
6.21 |
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Spectral class |
F5IV (yellow-white) |
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| Pri motion ra |
+156 |
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Sec motion ra |
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|
| Pri motion dec |
-183 |
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Sec motion dec |
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| Notes |
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Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 186185 |
|
Constellation |
Sagittarius |
|
SAO |
162931 |
|
HIP |
97063 |
|
| Tycho2 |
6299-02606-1 |
|
HD |
186185 |
|
HR |
7496 |
|
GC |
27289 |
|
| GL |
Wo 9666 |
|
BD |
BD-15 5444 |
|
Distance |
48.92 |
|
Distance ly |
159.58 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 19436-1528 BUP 197 A |
| coord_arcsec_2000 | 194333.45-152810.8 |
| Period (P) | 1297d (3.55y) | ± 206 |
Periastron (T) | 48919d (1992.812y) | ± 370 |
Semi-major axis (a) | 17.3m | ± 2.1 |
| Eccentricity (e) | 0.38 | ± 0.16 |
Inclination (i) | 33° | ± 10 |
Longitude of periastron (ω) | 126° | ± 102 |
| Node (Ω) | 222° | ± 122 |
Notes | | |
Reference | Gln2007 | |
| Equinox | | |
Last observation | 1991 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
13.1 |
0.010 |
| 2001-01-01 |
131.2 |
0.018 |
| 2002-01-01 |
188.3 |
0.022 |
| 2003-01-01 |
253.8 |
0.014 |
| 2004-01-01 |
81.0 |
0.014 |
| 2005-01-01 |
160.0 |
0.020 |
| 2006-01-01 |
211.1 |
0.021 |
| 2007-01-01 |
348.7 |
0.010 |
| 2008-01-01 |
123.4 |
0.017 |
| 2009-01-01 |
183.3 |
0.022 |
| 2010-01-01 |
242.8 |
0.016 |
| 2011-01-01 |
68.9 |
0.014 |
| 2012-01-01 |
154.1 |
0.020 |
| 2013-01-01 |
205.6 |
0.021 |
| 2014-01-01 |
321.2 |
0.009 |
| 2015-01-01 |
115.0 |
0.017 |
| 2016-01-01 |
178.3 |
0.022 |
| 2017-01-01 |
233.8 |
0.017 |
| 2018-01-01 |
55.5 |
0.013 |
| 2019-01-01 |
147.9 |
0.019 |
| 2020-01-01 |
200.4 |
0.022 |
| 2021-01-01 |
295.3 |
0.010 |
| 2022-01-01 |
105.9 |
0.016 |
| 2023-01-01 |
173.1 |
0.021 |
| 2024-01-01 |
226.2 |
0.018 |
| 2025-01-01 |
40.0 |
0.012 |
| 2026-01-01 |
141.2 |
0.019 |
| 2027-01-01 |
195.3 |
0.022 |
| 2028-01-01 |
274.6 |
0.012 |
| 2029-01-01 |
96.1 |
0.015 |
| 2030-01-01 |
167.8 |
0.021 |
|
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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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