09125-4032 B 1115 (HD 79400)
09h 12m 31.92s -40° 31' 53.6" P.A. 113.00 sep 0.2 mag 9.32,9.83 Sp G0V dist. 100.4 pc (327.5 l.y.)
Coord 2000 |
09125-4032 |
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Discov num |
B 1115 |
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Comp |
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Coord arcsec 2000 |
09 12 31.92 -40 31 53.6 |
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Date first |
1928 |
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Date last |
2018 |
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Obs |
13 |
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Pa first |
23 |
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Pa last |
112.7 |
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P.A. Now (θ) |
112.7° |
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Sep first |
0.4 |
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Sep last |
0.241 |
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Sep. Now (ρ) |
0.241" |
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Mag pri |
9.32 |
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Mag sec |
9.83 |
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delta mag (ΔM) |
0.51 |
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Spectral class |
G0V (yellow) |
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Pri motion ra |
+076 |
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Sec motion ra |
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Pri motion dec |
-106 |
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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 79400 |
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Constellation |
Vela |
|
SAO |
220950 |
|
HIP |
45191 |
|
Tycho2 |
7682-02914-1 |
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Gaia DR2 |
5428738748328622208 |
|
HD |
79400 |
|
CD |
CD-40 5013 |
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CP |
CP-40 3263 |
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Distance |
100.4 |
|
Distance ly |
327.5 |
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ORBITAL ELEMENTS
Period (P) | 646y | |
Periastron (T) | 1998.32y | |
Semi-major axis (a) | 1.024a | |
Eccentricity (e) | 0.776 | |
Inclination (i) | 114.2° | |
Longitude of periastron (ω) | 41.1° | |
Node (Ω) | 279.6° | |
Notes | | |
Reference | Tok2014a | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
251.2 |
0.159 |
2001 |
244.7 |
0.145 |
2002 |
236.7 |
0.132 |
2003 |
227.2 |
0.121 |
2004 |
216.1 |
0.113 |
2005 |
203.8 |
0.109 |
2006 |
191.2 |
0.110 |
2007 |
179.2 |
0.116 |
2008 |
168.7 |
0.125 |
2009 |
159.9 |
0.137 |
2010 |
152.6 |
0.152 |
2011 |
146.7 |
0.168 |
2012 |
141.8 |
0.185 |
2013 |
137.8 |
0.203 |
2014 |
134.4 |
0.221 |
2015 |
131.5 |
0.239 |
2016 |
129.1 |
0.257 |
2017 |
126.9 |
0.275 |
2018 |
125.1 |
0.293 |
2019 |
123.4 |
0.311 |
2020 |
121.9 |
0.328 |
2021 |
120.6 |
0.346 |
2022 |
119.4 |
0.363 |
2023 |
118.3 |
0.380 |
2024 |
117.3 |
0.396 |
2025 |
116.4 |
0.413 |
2026 |
115.5 |
0.429 |
2027 |
114.7 |
0.445 |
2028 |
114.0 |
0.460 |
2029 |
113.3 |
0.476 |
2030 |
112.6 |
0.491 |
2031 |
112.0 |
0.506 |
2032 |
111.5 |
0.520 |
2033 |
110.9 |
0.535 |
2034 |
110.4 |
0.549 |
2035 |
109.9 |
0.563 |
2036 |
109.4 |
0.577 |
2037 |
109.0 |
0.590 |
2038 |
108.6 |
0.603 |
2039 |
108.2 |
0.617 |
2040 |
107.8 |
0.629 |
2041 |
107.4 |
0.642 |
2042 |
107.0 |
0.655 |
2043 |
106.7 |
0.667 |
2044 |
106.4 |
0.679 |
2045 |
106.0 |
0.691 |
2046 |
105.7 |
0.703 |
2047 |
105.4 |
0.715 |
2048 |
105.1 |
0.726 |
2049 |
104.9 |
0.737 |
2050 |
104.6 |
0.749 |
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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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