19401-0759 YSC 161 (HD 185588)
19h 40m 05.33s -07° 58' 45.6" P.A. 253.00 sep 0.1 mag 8.10,8.70 Sp G0 dist. 58.69 pc (191.45 l.y.)
| Coord 2000 |
19401-0759 |
|
Discov num |
YSC 161 |
|
Comp |
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|
Coord arcsec 2000 |
19 40 05.33 -07 58 45.6 |
|
| Date first |
2008 |
|
Date last |
2021 |
|
Obs |
18 |
|
| Pa first |
257 |
|
Pa last |
253.4 |
|
P.A. Now (θ) |
249.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.064 |
|
Sep. Now (ρ) |
0.087" |
|
| Mag pri |
8.10 |
|
Mag sec |
8.70 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
+067 |
|
Sec motion ra |
|
|
| Pri motion dec |
-189 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 185588 |
|
Constellation |
Aquila |
|
SAO |
143664 |
|
HIP |
96754 |
|
| Tycho2 |
5724-00957-1 |
|
Gaia DR2 |
4195035162353549184 |
|
HD |
185588 |
|
GC |
27202 |
|
| BD |
BD-08 5062 |
|
Distance |
58.69 |
|
Distance ly |
191.45 |
|
ORBITAL ELEMENTS
| Period (P) | 4.649y | ± 0.031 |
Periastron (T) | 2015.318y | ± 0.052 |
Semi-major axis (a) | 0.069a | ± 0.002 |
| Eccentricity (e) | 0.622 | ± 0.025 |
Inclination (i) | 95.1° | ± 0.9 |
Longitude of periastron (ω) | 309.7° | ± 3.6 |
| Node (Ω) | 66.3° | ± 0.7 |
Notes | n | |
Reference | Tok2021f | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
248.8 |
0.088 |
| 2001 |
243.3 |
0.041 |
| 2002 |
49.7 |
0.019 |
| 2003 |
258.2 |
0.042 |
| 2004 |
251.1 |
0.081 |
| 2005 |
247.6 |
0.082 |
| 2006 |
74.6 |
0.014 |
| 2007 |
314.7 |
0.008 |
| 2008 |
254.5 |
0.058 |
| 2009 |
249.8 |
0.087 |
| 2010 |
246.0 |
0.067 |
| 2011 |
61.4 |
0.032 |
| 2012 |
265.3 |
0.026 |
| 2013 |
252.4 |
0.072 |
| 2014 |
248.6 |
0.088 |
| 2015 |
242.4 |
0.034 |
| 2016 |
45.4 |
0.016 |
| 2017 |
257.4 |
0.044 |
| 2018 |
250.9 |
0.082 |
| 2019 |
247.4 |
0.081 |
| 2020 |
70.0 |
0.021 |
| 2021 |
297.0 |
0.010 |
| 2022 |
254.1 |
0.061 |
| 2023 |
249.6 |
0.087 |
| 2024 |
245.7 |
0.063 |
| 2025 |
60.1 |
0.031 |
| 2026 |
263.4 |
0.029 |
| 2027 |
252.1 |
0.074 |
| 2028 |
248.5 |
0.087 |
| 2029 |
240.9 |
0.027 |
| 2030 |
39.3 |
0.014 |
| 2031 |
256.8 |
0.047 |
| 2032 |
250.7 |
0.083 |
| 2033 |
247.2 |
0.079 |
| 2034 |
67.7 |
0.027 |
| 2035 |
285.6 |
0.012 |
| 2036 |
253.8 |
0.063 |
| 2037 |
249.5 |
0.088 |
| 2038 |
245.3 |
0.059 |
| 2039 |
58.5 |
0.029 |
| 2040 |
261.9 |
0.031 |
| 2041 |
251.9 |
0.076 |
| 2042 |
248.3 |
0.086 |
| 2043 |
238.3 |
0.019 |
| 2044 |
30.3 |
0.011 |
| 2045 |
256.2 |
0.050 |
| 2046 |
250.5 |
0.084 |
| 2047 |
247.0 |
0.077 |
| 2048 |
66.1 |
0.031 |
| 2049 |
278.2 |
0.015 |
| 2050 |
253.4 |
0.065 |
|
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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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