12358-6150 RST 4503 (HD 109517)
12h 35m 50.18s -61° 50' 27.3" P.A. 123.00 sep 0.1 mag 9.20,9.93 Sp B9V dist. 1428.57 pc (4660 l.y.)
Coord 2000 |
12358-6150 |
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Discov num |
RST4503 |
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Comp |
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Coord arcsec 2000 |
12 35 50.18 -61 50 27.3 |
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Date first |
1939 |
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Date last |
2020 |
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Obs |
8 |
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Pa first |
356 |
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Pa last |
123 |
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P.A. Now (θ) |
123° |
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Sep first |
0.2 |
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Sep last |
0.147 |
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Sep. Now (ρ) |
0.147" |
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Mag pri |
9.20 |
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Mag sec |
9.93 |
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delta mag (ΔM) |
0.73 |
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Spectral class |
B9V (blue-white) |
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Pri motion ra |
-020 |
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Sec motion ra |
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Pri motion dec |
+003 |
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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 109517 |
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Constellation |
Crux |
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SAO |
251967 |
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HIP |
61479 |
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Tycho2 |
8988-00903-1 |
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Gaia DR2 |
6054730369177817856 |
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HD |
109517 |
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CP |
CP-61 3303 |
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Distance |
1428.57 |
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Distance ly |
4660 |
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ORBITAL ELEMENTS
Period (P) | 300y | |
Periastron (T) | 1729.08y | |
Semi-major axis (a) | 0.21a | |
Eccentricity (e) | 0.317 | |
Inclination (i) | 53° | |
Longitude of periastron (ω) | 25° | |
Node (Ω) | 120.9° | |
Notes | | |
Reference | Tok2020g | |
Equinox | 2000 | |
Last observation | 2020 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
94.9 |
0.143 |
2001 |
96.3 |
0.144 |
2002 |
97.8 |
0.145 |
2003 |
99.2 |
0.145 |
2004 |
100.6 |
0.146 |
2005 |
102.0 |
0.147 |
2006 |
103.4 |
0.147 |
2007 |
104.8 |
0.148 |
2008 |
106.2 |
0.148 |
2009 |
107.6 |
0.148 |
2010 |
109.0 |
0.149 |
2011 |
110.3 |
0.149 |
2012 |
111.7 |
0.149 |
2013 |
113.1 |
0.149 |
2014 |
114.4 |
0.149 |
2015 |
115.8 |
0.148 |
2016 |
117.2 |
0.148 |
2017 |
118.6 |
0.148 |
2018 |
120.0 |
0.147 |
2019 |
121.4 |
0.147 |
2020 |
122.8 |
0.146 |
2021 |
124.2 |
0.145 |
2022 |
125.6 |
0.144 |
2023 |
127.1 |
0.143 |
2024 |
128.6 |
0.142 |
2025 |
130.1 |
0.141 |
2026 |
131.6 |
0.140 |
2027 |
133.2 |
0.138 |
2028 |
134.8 |
0.137 |
2029 |
136.4 |
0.135 |
2030 |
138.1 |
0.134 |
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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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