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 |
|
Discov num |
STF2596 |
|
Comp |
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Coord arcsec 2000 |
19 54 01.95 +15 17 31.7 |
|
| Date first |
1828 |
|
Date last |
2016 |
|
Obs |
190 |
|
| Pa first |
355 |
|
Pa last |
297.3 |
|
P.A. Now (θ) |
297.3° |
|
| Sep first |
2.1 |
|
Sep last |
2.147 |
|
Sep. Now (ρ) |
2.147" |
|
| Mag pri |
7.29 |
|
Mag sec |
8.68 |
|
delta mag (ΔM) |
1.39 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
-012 |
|
Sec motion ra |
-012 |
|
| Pri motion dec |
-009 |
|
Sec motion dec |
-009 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 188328 |
|
Constellation |
Aquila |
|
SAO |
105396 |
|
HIP |
97922 |
|
| Tycho2 |
1616-00256-1 |
|
Gaia DR2 |
1819522595307811712 |
|
HD |
188328 |
|
GC |
27553 |
|
| ADS |
13082 |
|
BD |
BD+14 4083 |
|
Distance |
82.58 |
|
Distance ly |
269.38 |
|
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 |
| 2031 |
293.8 |
1.984 |
| 2032 |
293.5 |
1.985 |
| 2033 |
293.3 |
1.986 |
| 2034 |
293.0 |
1.987 |
| 2035 |
292.8 |
1.988 |
| 2036 |
292.5 |
1.990 |
| 2037 |
292.3 |
1.991 |
| 2038 |
292.0 |
1.992 |
| 2039 |
291.8 |
1.994 |
| 2040 |
291.5 |
1.995 |
| 2041 |
291.3 |
1.996 |
| 2042 |
291.0 |
1.998 |
| 2043 |
290.8 |
1.999 |
| 2044 |
290.5 |
2.001 |
| 2045 |
290.3 |
2.002 |
| 2046 |
290.0 |
2.004 |
| 2047 |
289.8 |
2.005 |
| 2048 |
289.5 |
2.007 |
| 2049 |
289.3 |
2.009 |
| 2050 |
289.0 |
2.010 |
|
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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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