18194+2427 POU 3386
18h 19m 25.03s +24° 26' 59.8" P.A. 39.00 sep 20.2 mag 10.82,14.20 Sp A5
Coord 2000 |
18194+2427 |
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Discov num |
POU3386 |
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Comp |
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Coord arcsec 2000 |
18 19 25.03 +24 26 59.8 |
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Date first |
1904 |
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Date last |
2015 |
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Obs |
12 |
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Pa first |
45 |
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Pa last |
38.9 |
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P.A. Now (θ) |
38.9° |
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Sep first |
17.8 |
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Sep last |
20.151 |
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Sep. Now (ρ) |
20.151" |
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Mag pri |
10.82 |
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Mag sec |
14.20 |
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delta mag (ΔM) |
3.38 |
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Spectral class |
A5 (white) |
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Pri motion ra |
-001 |
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Sec motion ra |
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Pri motion dec |
-005 |
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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
Constellation |
Hercules |
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Tycho2 |
2097-01130-1 |
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Gaia DR2 |
4578644323924874752 |
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HD |
335971 |
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SUSPECTED ORBITAL ELEMENTS
Identifier | 18192+2427 |
coord_arcsec_2000 | 181910.67+242645.8 |
Period (P) | 485.45d | |
Periastron (T) | 39084.1d (1965.884y) | |
Semi-major axis (a) | 1.3m | ± 0.1 |
Eccentricity (e) | 0.36 | |
Inclination (i) | 115.8° | ± 11.6 |
Longitude of periastron (ω) | 250.1° | |
Node (Ω) | 95.3° | ± 10.3 |
Notes | n | |
Reference | Ren2013 | |
Equinox | 2000 | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
338.5 |
0.001 |
2001-01-01 |
63.0 |
0.001 |
2002-01-01 |
97.8 |
0.001 |
2003-01-01 |
269.1 |
0.001 |
2004-01-01 |
334.7 |
0.001 |
2005-01-01 |
61.2 |
0.001 |
2006-01-01 |
96.3 |
0.001 |
2007-01-01 |
266.2 |
0.001 |
2008-01-01 |
331.0 |
0.001 |
2009-01-01 |
59.3 |
0.001 |
2010-01-01 |
94.9 |
0.001 |
2011-01-01 |
262.9 |
0.001 |
2012-01-01 |
327.4 |
0.001 |
2013-01-01 |
57.4 |
0.001 |
2014-01-01 |
93.5 |
0.001 |
2015-01-01 |
259.2 |
0.001 |
2016-01-01 |
324.0 |
0.001 |
2017-01-01 |
55.3 |
0.001 |
2018-01-01 |
92.2 |
0.001 |
2019-01-01 |
254.8 |
0.001 |
2020-01-01 |
320.8 |
0.001 |
2021-01-01 |
53.2 |
0.001 |
2022-01-01 |
90.9 |
0.001 |
2023-01-01 |
249.4 |
0.001 |
2024-01-01 |
317.7 |
0.001 |
2025-01-01 |
50.9 |
0.001 |
2026-01-01 |
89.7 |
0.001 |
2027-01-01 |
242.7 |
0.001 |
2028-01-01 |
314.7 |
0.001 |
2029-01-01 |
48.5 |
0.001 |
2030-01-01 |
88.4 |
0.001 |
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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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