18171-4336 HDS 2583 (HD 167384)
18h 17m 03.81s -43° 35' 41.3" P.A. 10.00 sep 0.1 mag 8.88,9.95 Sp G8/K0III+ dist. 395.26 pc (1289.34 l.y.)
Coord 2000 |
18171-4336 |
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Discov num |
HDS2583 |
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Comp |
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Coord arcsec 2000 |
18 17 03.81 -43 35 41.3 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
12 |
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Pa first |
190 |
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Pa last |
9.8 |
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P.A. Now (θ) |
9.8° |
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Sep first |
0.1 |
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Sep last |
0.064 |
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Sep. Now (ρ) |
0.064" |
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Mag pri |
8.88 |
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Mag sec |
9.95 |
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delta mag (ΔM) |
1.07 |
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Spectral class |
G8/K0III+ (yellow) |
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Pri motion ra |
+005 |
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Sec motion ra |
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Pri motion dec |
-010 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 167384 |
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Constellation |
Corona Austrina |
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SAO |
228868 |
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HIP |
89599 |
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Tycho2 |
7912-00277-1 |
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Gaia DR2 |
6721194978662666624 |
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HD |
167384 |
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CD |
CD-4312414 |
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CP |
CP-43 8532 |
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Distance |
395.26 |
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Distance ly |
1289.34 |
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ORBITAL ELEMENTS
Period (P) | 332.169y | |
Periastron (T) | 2014.309y | |
Semi-major axis (a) | 0.196a | |
Eccentricity (e) | 0.718 | |
Inclination (i) | 148.4° | |
Longitude of periastron (ω) | 291.1° | |
Node (Ω) | 8.9° | |
Notes | | |
Reference | Tok2018e | |
Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
170.8 |
0.093 |
2001 |
167.8 |
0.089 |
2002 |
164.6 |
0.085 |
2003 |
160.9 |
0.080 |
2004 |
156.9 |
0.076 |
2005 |
152.4 |
0.072 |
2006 |
147.2 |
0.067 |
2007 |
141.4 |
0.063 |
2008 |
134.8 |
0.059 |
2009 |
127.4 |
0.056 |
2010 |
118.9 |
0.053 |
2011 |
109.5 |
0.050 |
2012 |
99.3 |
0.048 |
2013 |
88.6 |
0.048 |
2014 |
77.8 |
0.048 |
2015 |
67.3 |
0.049 |
2016 |
57.4 |
0.051 |
2017 |
48.4 |
0.054 |
2018 |
40.2 |
0.057 |
2019 |
32.9 |
0.060 |
2020 |
26.4 |
0.063 |
2021 |
20.6 |
0.067 |
2022 |
15.3 |
0.070 |
2023 |
10.6 |
0.074 |
2024 |
6.3 |
0.078 |
2025 |
2.4 |
0.081 |
2026 |
358.8 |
0.085 |
2027 |
355.5 |
0.088 |
2028 |
352.4 |
0.091 |
2029 |
349.6 |
0.095 |
2030 |
346.9 |
0.098 |
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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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