17594+2929 COU 1003 Aa,Ab
17h 59m 24.52s +29° 29' 29.6" P.A. 359.00 sep 0.1 mag 9.92,9.92 Sp F5
| Coord 2000 |
17594+2929 |
|
Discov num |
COU1003 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
17 59 24.52 +29 29 29.6 |
|
| Date first |
1973 |
|
Date last |
2018 |
|
Obs |
8 |
|
| Pa first |
56 |
|
Pa last |
358.8 |
|
P.A. Now (θ) |
358.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.057 |
|
Sep. Now (ρ) |
0.057" |
|
| Mag pri |
9.92 |
|
Mag sec |
9.92 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-030 |
|
Sec motion ra |
|
|
| Pri motion dec |
-027 |
|
Sec motion dec |
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|
| Notes |
O
W
(Orbital solution, ) |
|
This double is physical.
17594+2929 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 59 25 +29 29 30 |
COU 1003 Aa,Ab |
2018 |
8 |
359 |
0.1 |
9.92 |
9.92 |
0.00 |
Y |
<=== |
| Show |
|
|
17 59 25 +29 29 30 |
STF 2247 AB |
2018 |
36 |
188 |
11.6 |
9.17 |
9.88 |
0.71 |
|
|
| Show |
|
|
17 59 25 +29 29 30 |
WAL 88 AC |
2018 |
9 |
230 |
56.1 |
9.17 |
12.49 |
3.32 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
2102-01493-1 |
|
Gaia DR2 |
4584635116105365120 |
|
ADS |
10961 |
|
ORBITAL ELEMENTS
| Period (P) | 159.3y | ± 13.1 |
Periastron (T) | 1971.2y | ± 4 |
Semi-major axis (a) | 0.233a | ± 0.012 |
| Eccentricity (e) | 0.178 | ± 0.023 |
Inclination (i) | 100.4° | ± 0.2 |
Longitude of periastron (ω) | 317° | ± 12.5 |
| Node (Ω) | 51° | ± 0.3 |
Notes | | |
Reference | BAE2021 | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
41.7 |
0.167 |
| 2001 |
40.9 |
0.162 |
| 2002 |
40.1 |
0.157 |
| 2003 |
39.2 |
0.152 |
| 2004 |
38.2 |
0.146 |
| 2005 |
37.1 |
0.140 |
| 2006 |
36.0 |
0.134 |
| 2007 |
34.7 |
0.128 |
| 2008 |
33.3 |
0.122 |
| 2009 |
31.7 |
0.115 |
| 2010 |
30.0 |
0.109 |
| 2011 |
28.0 |
0.102 |
| 2012 |
25.8 |
0.096 |
| 2013 |
23.2 |
0.089 |
| 2014 |
20.3 |
0.083 |
| 2015 |
16.9 |
0.077 |
| 2016 |
12.8 |
0.070 |
| 2017 |
8.0 |
0.065 |
| 2018 |
2.4 |
0.060 |
| 2019 |
355.7 |
0.055 |
| 2020 |
347.9 |
0.051 |
| 2021 |
339.0 |
0.048 |
| 2022 |
329.3 |
0.047 |
| 2023 |
319.2 |
0.046 |
| 2024 |
309.2 |
0.048 |
| 2025 |
300.0 |
0.050 |
| 2026 |
291.9 |
0.054 |
| 2027 |
284.8 |
0.058 |
| 2028 |
278.9 |
0.063 |
| 2029 |
273.8 |
0.069 |
| 2030 |
269.6 |
0.075 |
|
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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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