22479-5705 B 2059 (HD 215659)
22h 47m 51.28s -57° 05' 26.4" P.A. 78.00 sep 0.2 mag 9.61,9.85 Sp G0V dist. 225.23 pc (734.7 l.y.)
Coord 2000 |
22479-5705 |
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Discov num |
B 2059 |
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Comp |
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Coord arcsec 2000 |
22 47 51.28 -57 05 26.4 |
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Date first |
1930 |
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Date last |
2019 |
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Obs |
12 |
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Pa first |
280 |
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Pa last |
77.6 |
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P.A. Now (θ) |
75.3° |
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Sep first |
0.2 |
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Sep last |
0.17 |
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Sep. Now (ρ) |
0.195" |
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Mag pri |
9.61 |
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Mag sec |
9.85 |
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delta mag (ΔM) |
0.24 |
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Spectral class |
G0V (yellow) |
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Pri motion ra |
+069 |
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Sec motion ra |
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Pri motion dec |
-049 |
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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 215659 |
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Constellation |
Tucana |
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SAO |
247585 |
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HIP |
112561 |
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Tycho2 |
8826-00070-1 |
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Gaia DR2 |
6504029161433116544 |
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HD |
215659 |
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CP |
CP-5710143 |
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Distance |
225.23 |
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Distance ly |
734.7 |
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ORBITAL ELEMENTS
Period (P) | 43.17y | ± 2.82 |
Periastron (T) | 2007y | ± 2.7 |
Semi-major axis (a) | 0.125a | ± 0.007 |
Eccentricity (e) | 0.7 | ± 0 |
Inclination (i) | 102.1° | ± 3.7 |
Longitude of periastron (ω) | 176° | ± 4.7 |
Node (Ω) | 71.9° | ± 4.4 |
Notes | n | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
63.2 |
0.112 |
2001 |
61.4 |
0.095 |
2002 |
58.7 |
0.077 |
2003 |
54.2 |
0.056 |
2004 |
43.9 |
0.034 |
2005 |
357.3 |
0.014 |
2006 |
272.7 |
0.024 |
2007 |
252.7 |
0.037 |
2008 |
236.3 |
0.029 |
2009 |
183.3 |
0.014 |
2010 |
113.0 |
0.025 |
2011 |
95.8 |
0.045 |
2012 |
89.2 |
0.065 |
2013 |
85.7 |
0.084 |
2014 |
83.4 |
0.101 |
2015 |
81.7 |
0.116 |
2016 |
80.4 |
0.130 |
2017 |
79.4 |
0.143 |
2018 |
78.5 |
0.154 |
2019 |
77.7 |
0.164 |
2020 |
77.0 |
0.174 |
2021 |
76.4 |
0.182 |
2022 |
75.8 |
0.189 |
2023 |
75.3 |
0.195 |
2024 |
74.8 |
0.200 |
2025 |
74.3 |
0.204 |
2026 |
73.9 |
0.208 |
2027 |
73.4 |
0.210 |
2028 |
73.0 |
0.212 |
2029 |
72.6 |
0.212 |
2030 |
72.1 |
0.212 |
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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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