23322+0705 HU 298 (HD 221445)
23h 32m 12.71s +07° 05' 06.1" P.A. 241.00 sep 0.1 mag 7.46,7.92 Sp F7V dist. 76.69 pc (250.16 l.y.)
Coord 2000 |
23322+0705 |
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Discov num |
HU 298 |
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Comp |
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Coord arcsec 2000 |
23 32 12.71 +07 05 06.1 |
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Date first |
1900 |
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Date last |
2020 |
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Obs |
143 |
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Pa first |
275 |
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Pa last |
241.3 |
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P.A. Now (θ) |
273.4° |
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Sep first |
0.2 |
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Sep last |
0.121 |
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Sep. Now (ρ) |
0.15" |
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Mag pri |
7.46 |
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Mag sec |
7.92 |
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delta mag (ΔM) |
0.46 |
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Spectral class |
F7V (yellow-white) |
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Pri motion ra |
-021 |
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Sec motion ra |
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Pri motion dec |
-054 |
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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 221445 |
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Constellation |
Pisces |
|
SAO |
128231 |
|
HIP |
116164 |
|
Tycho2 |
0591-00599-1 |
|
Gaia DR2 |
2757465146875793280 |
|
HD |
221445 |
|
GC |
32732 |
|
ADS |
16819 |
|
BD |
BD+06 5168 |
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Distance |
76.69 |
|
Distance ly |
250.16 |
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ORBITAL ELEMENTS
Period (P) | 30.73y | |
Periastron (T) | 1987.47y | |
Semi-major axis (a) | 0.173a | |
Eccentricity (e) | 0.263 | |
Inclination (i) | 31° | |
Longitude of periastron (ω) | 57° | |
Node (Ω) | 126.8° | |
Notes | n | |
Reference | Hrt2000c | |
Equinox | 2000 | |
Last observation | 1997 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
339.3 |
0.203 |
2001 |
346.3 |
0.202 |
2002 |
353.5 |
0.200 |
2003 |
0.9 |
0.196 |
2004 |
8.6 |
0.192 |
2005 |
16.6 |
0.188 |
2006 |
25.0 |
0.183 |
2007 |
33.9 |
0.179 |
2008 |
43.2 |
0.174 |
2009 |
53.0 |
0.170 |
2010 |
63.3 |
0.166 |
2011 |
74.0 |
0.163 |
2012 |
85.2 |
0.159 |
2013 |
97.0 |
0.155 |
2014 |
109.5 |
0.150 |
2015 |
123.0 |
0.143 |
2016 |
138.0 |
0.134 |
2017 |
155.3 |
0.125 |
2018 |
175.3 |
0.116 |
2019 |
197.8 |
0.112 |
2020 |
220.8 |
0.114 |
2021 |
241.7 |
0.123 |
2022 |
259.2 |
0.136 |
2023 |
273.4 |
0.150 |
2024 |
285.3 |
0.163 |
2025 |
295.4 |
0.175 |
2026 |
304.3 |
0.185 |
2027 |
312.3 |
0.193 |
2028 |
319.9 |
0.198 |
2029 |
327.1 |
0.202 |
2030 |
334.2 |
0.203 |
2031 |
341.2 |
0.203 |
2032 |
348.3 |
0.202 |
2033 |
355.5 |
0.199 |
2034 |
2.9 |
0.195 |
2035 |
10.7 |
0.191 |
2036 |
18.8 |
0.187 |
2037 |
27.3 |
0.182 |
2038 |
36.3 |
0.177 |
2039 |
45.8 |
0.173 |
2040 |
55.7 |
0.169 |
2041 |
66.1 |
0.165 |
2042 |
77.0 |
0.162 |
2043 |
88.3 |
0.158 |
2044 |
100.3 |
0.154 |
2045 |
113.0 |
0.148 |
2046 |
126.9 |
0.141 |
2047 |
142.5 |
0.132 |
2048 |
160.4 |
0.122 |
2049 |
181.2 |
0.115 |
2050 |
204.1 |
0.112 |
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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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