19035-6845 FIN 357 (HD 175986)
19h 03m 29.68s -68° 45' 19.9" P.A. 149.00 sep 0.2 mag 6.58,6.96 Sp F8V dist. 56.31 pc (183.68 l.y.)
| Coord 2000 |
19035-6845 |
|
Discov num |
FIN 357 |
|
Comp |
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Coord arcsec 2000 |
19 03 29.68 -68 45 19.9 |
|
| Date first |
1959 |
|
Date last |
2021 |
|
Obs |
20 |
|
| Pa first |
16 |
|
Pa last |
149.2 |
|
P.A. Now (θ) |
116.6° |
|
| Sep first |
0.1 |
|
Sep last |
0.163 |
|
Sep. Now (ρ) |
0.182" |
|
| Mag pri |
6.58 |
|
Mag sec |
6.96 |
|
delta mag (ΔM) |
0.38 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
-019 |
|
Sec motion ra |
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| Pri motion dec |
-012 |
|
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 175986 |
|
Constellation |
Pavo |
|
SAO |
254446 |
|
HIP |
93574 |
|
| Tycho2 |
9292-02325-1 |
|
Gaia DR2 |
6421518377211390208 |
|
HD |
175986 |
|
HR |
7161 |
|
| GC |
26117 |
|
CP |
CP-68 3180 |
|
Distance |
56.31 |
|
Distance ly |
183.68 |
|
ORBITAL ELEMENTS
| Period (P) | 14.05y | ± 0.06 |
Periastron (T) | 2018.226y | ± 0.04 |
Semi-major axis (a) | 0.142a | ± 0.001 |
| Eccentricity (e) | 0.385 | ± 0.003 |
Inclination (i) | 163.5° | ± 0.5 |
Longitude of periastron (ω) | 193.9° | ± 1.5 |
| Node (Ω) | 101.9° | ± 1.5 |
Notes | n | |
Reference | Doc2018l | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
51.0 |
0.169 |
| 2001 |
32.8 |
0.149 |
| 2002 |
8.2 |
0.125 |
| 2003 |
331.8 |
0.101 |
| 2004 |
279.1 |
0.088 |
| 2005 |
220.8 |
0.093 |
| 2006 |
177.8 |
0.116 |
| 2007 |
150.2 |
0.143 |
| 2008 |
131.0 |
0.166 |
| 2009 |
115.9 |
0.182 |
| 2010 |
103.0 |
0.193 |
| 2011 |
90.9 |
0.196 |
| 2012 |
79.0 |
0.194 |
| 2013 |
66.2 |
0.185 |
| 2014 |
51.8 |
0.170 |
| 2015 |
33.9 |
0.150 |
| 2016 |
9.7 |
0.126 |
| 2017 |
334.0 |
0.102 |
| 2018 |
282.0 |
0.088 |
| 2019 |
223.5 |
0.092 |
| 2020 |
179.5 |
0.115 |
| 2021 |
151.3 |
0.141 |
| 2022 |
131.8 |
0.165 |
| 2023 |
116.6 |
0.182 |
| 2024 |
103.6 |
0.192 |
| 2025 |
91.5 |
0.196 |
| 2026 |
79.6 |
0.194 |
| 2027 |
66.9 |
0.185 |
| 2028 |
52.5 |
0.171 |
| 2029 |
34.9 |
0.151 |
| 2030 |
11.1 |
0.127 |
| 2031 |
336.2 |
0.104 |
| 2032 |
285.0 |
0.088 |
| 2033 |
226.2 |
0.092 |
| 2034 |
181.3 |
0.113 |
| 2035 |
152.5 |
0.140 |
| 2036 |
132.7 |
0.164 |
| 2037 |
117.3 |
0.181 |
| 2038 |
104.2 |
0.192 |
| 2039 |
92.1 |
0.196 |
| 2040 |
80.2 |
0.194 |
| 2041 |
67.6 |
0.186 |
| 2042 |
53.3 |
0.172 |
| 2043 |
35.9 |
0.152 |
| 2044 |
12.5 |
0.128 |
| 2045 |
338.3 |
0.105 |
| 2046 |
287.9 |
0.089 |
| 2047 |
228.9 |
0.091 |
| 2048 |
183.1 |
0.112 |
| 2049 |
153.7 |
0.139 |
| 2050 |
133.5 |
0.163 |
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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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