19540+1518 STF 2596 (HD 188328)
19h 54m 01.95s +15° 17' 31.7" P.A. 297.00 sep 2.1 mag 7.29,8.68 Sp F8V dist. 82.58 pc (269.38 l.y.)
Coord 2000 |
19540+1518 |
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Discov num |
STF2596 |
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Comp |
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Coord arcsec 2000 |
19 54 01.95 +15 17 31.7 |
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Date first |
1828 |
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Date last |
2016 |
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Obs |
190 |
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Pa first |
355 |
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Pa last |
297.3 |
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P.A. Now (θ) |
297.3° |
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Sep first |
2.1 |
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Sep last |
2.147 |
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Sep. Now (ρ) |
2.147" |
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Mag pri |
7.29 |
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Mag sec |
8.68 |
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delta mag (ΔM) |
1.39 |
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Spectral class |
F8V (yellow-white) |
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Pri motion ra |
-012 |
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Sec motion ra |
-012 |
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Pri motion dec |
-009 |
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Sec motion dec |
-009 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 188328 |
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Constellation |
Aquila |
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SAO |
105396 |
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HIP |
97922 |
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Tycho2 |
1616-00256-1 |
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Gaia DR2 |
1819522595307811712 |
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HD |
188328 |
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GC |
27553 |
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ADS |
13082 |
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BD |
BD+14 4083 |
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Distance |
82.58 |
|
Distance ly |
269.38 |
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ORBITAL ELEMENTS
Period (P) | 2971.0861y | ± 1397.0172 |
Periastron (T) | 2354.1964y | ± 226.1355 |
Semi-major axis (a) | 8.50966a | ± 4.29319 |
Eccentricity (e) | 0.8412 | ± 0.12277 |
Inclination (i) | 102.104° | ± 6.864 |
Longitude of periastron (ω) | 242.962° | ± 19.747 |
Node (Ω) | 54.788° | ± 25.109 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
301.7 |
1.963 |
2001 |
301.5 |
1.963 |
2002 |
301.2 |
1.963 |
2003 |
300.9 |
1.964 |
2004 |
300.7 |
1.964 |
2005 |
300.4 |
1.964 |
2006 |
300.2 |
1.965 |
2007 |
299.9 |
1.965 |
2008 |
299.7 |
1.966 |
2009 |
299.4 |
1.966 |
2010 |
299.1 |
1.967 |
2011 |
298.9 |
1.967 |
2012 |
298.6 |
1.968 |
2013 |
298.4 |
1.968 |
2014 |
298.1 |
1.969 |
2015 |
297.9 |
1.969 |
2016 |
297.6 |
1.970 |
2017 |
297.3 |
1.971 |
2018 |
297.1 |
1.972 |
2019 |
296.8 |
1.972 |
2020 |
296.6 |
1.973 |
2021 |
296.3 |
1.974 |
2022 |
296.1 |
1.975 |
2023 |
295.8 |
1.976 |
2024 |
295.6 |
1.977 |
2025 |
295.3 |
1.977 |
2026 |
295.1 |
1.978 |
2027 |
294.8 |
1.979 |
2028 |
294.5 |
1.980 |
2029 |
294.3 |
1.982 |
2030 |
294.0 |
1.983 |
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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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