23286-3821 HDS 3342 (HD 220992)
23h 28m 34.60s -38° 20' 35.2" P.A. 250.00 sep 0.1 mag 9.22,10.92 Sp F5V dist. 144.3 pc (470.71 l.y.)
Coord 2000 |
23286-3821 |
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Discov num |
HDS3342 |
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Comp |
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Coord arcsec 2000 |
23 28 34.60 -38 20 35.2 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
9 |
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Pa first |
140 |
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Pa last |
250.1 |
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P.A. Now (θ) |
231.5° |
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Sep first |
0.2 |
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Sep last |
0.071 |
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Sep. Now (ρ) |
0.064" |
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Mag pri |
9.22 |
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Mag sec |
10.92 |
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delta mag (ΔM) |
1.7 |
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Spectral class |
F5V (yellow-white) |
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Pri motion ra |
+009 |
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Sec motion ra |
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Pri motion dec |
-040 |
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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 220992 |
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Constellation |
Sculptor |
|
SAO |
214570 |
|
HIP |
115876 |
|
Tycho2 |
8013-01190-1 |
|
Gaia DR2 |
6538507926230337792 |
|
HD |
220992 |
|
CD |
CD-3915040 |
|
CP |
CP-39 9252 |
|
Distance |
144.3 |
|
Distance ly |
470.71 |
|
ORBITAL ELEMENTS
Period (P) | 46.6y | |
Periastron (T) | 2014.9y | |
Semi-major axis (a) | 0.119a | |
Eccentricity (e) | 0.368 | |
Inclination (i) | 122.8° | |
Longitude of periastron (ω) | 155.6° | |
Node (Ω) | 125.3° | |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
119.8 |
0.146 |
2001 |
117.2 |
0.141 |
2002 |
114.2 |
0.134 |
2003 |
111.0 |
0.126 |
2004 |
107.3 |
0.117 |
2005 |
102.9 |
0.107 |
2006 |
97.6 |
0.096 |
2007 |
90.8 |
0.085 |
2008 |
81.9 |
0.073 |
2009 |
69.6 |
0.062 |
2010 |
52.4 |
0.053 |
2011 |
30.1 |
0.048 |
2012 |
6.2 |
0.049 |
2013 |
345.7 |
0.055 |
2014 |
330.1 |
0.064 |
2015 |
318.0 |
0.071 |
2016 |
307.9 |
0.076 |
2017 |
298.7 |
0.078 |
2018 |
289.7 |
0.077 |
2019 |
280.1 |
0.074 |
2020 |
269.6 |
0.071 |
2021 |
257.9 |
0.067 |
2022 |
245.1 |
0.064 |
2023 |
231.5 |
0.064 |
2024 |
218.1 |
0.065 |
2025 |
205.8 |
0.069 |
2026 |
194.9 |
0.074 |
2027 |
185.7 |
0.081 |
2028 |
178.0 |
0.088 |
2029 |
171.6 |
0.096 |
2030 |
166.1 |
0.104 |
2031 |
161.4 |
0.112 |
2032 |
157.3 |
0.119 |
2033 |
153.6 |
0.126 |
2034 |
150.3 |
0.133 |
2035 |
147.4 |
0.139 |
2036 |
144.6 |
0.144 |
2037 |
142.0 |
0.148 |
2038 |
139.6 |
0.152 |
2039 |
137.2 |
0.155 |
2040 |
135.0 |
0.157 |
2041 |
132.8 |
0.158 |
2042 |
130.6 |
0.158 |
2043 |
128.3 |
0.157 |
2044 |
126.1 |
0.156 |
2045 |
123.8 |
0.153 |
2046 |
121.4 |
0.149 |
2047 |
118.8 |
0.144 |
2048 |
116.0 |
0.138 |
2049 |
113.0 |
0.131 |
2050 |
109.6 |
0.123 |
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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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