10163-2859 I 851 (HD 89117)
10h 16m 18.88s -28° 58' 42.5" P.A. 236.00 sep 0.4 mag 9.62,7.96 Sp F3V dist. 147.06 pc (479.71 l.y.)
Coord 2000 |
10163-2859 |
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Discov num |
I 851 |
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Comp |
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Coord arcsec 2000 |
10 16 18.88 -28 58 42.5 |
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Date first |
1910 |
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Date last |
2013 |
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Obs |
38 |
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Pa first |
222 |
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Pa last |
235.6 |
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P.A. Now (θ) |
230.2° |
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Sep first |
0.5 |
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Sep last |
0.384 |
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Sep. Now (ρ) |
0.368" |
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Mag pri |
9.62 |
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Mag sec |
7.96 |
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delta mag (ΔM) |
1.66 |
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Spectral class |
F3V (yellow-white) |
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Pri motion ra |
-012 |
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Sec motion ra |
-012 |
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Pri motion dec |
-017 |
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Sec motion dec |
-017 |
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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 89117 |
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Constellation |
Antlia |
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SAO |
178601 |
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HIP |
50309 |
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Tycho2 |
6630-01496-1 |
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Gaia DR2 |
5462598586856740352 |
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HD |
89117 |
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GC |
14111 |
|
ADS |
7706 |
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CD |
CD-28 8041 |
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CP |
CP-28 4058 |
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Distance |
147.06 |
|
Distance ly |
479.71 |
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ORBITAL ELEMENTS
Period (P) | 117y | |
Periastron (T) | 1953.9y | |
Semi-major axis (a) | 0.216a | |
Eccentricity (e) | 0.782 | |
Inclination (i) | 136° | |
Longitude of periastron (ω) | 11° | |
Node (Ω) | 63° | |
Notes | n | |
Reference | Hrt2010a | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
240.6 |
0.373 |
2001 |
240.1 |
0.374 |
2002 |
239.7 |
0.376 |
2003 |
239.2 |
0.377 |
2004 |
238.8 |
0.379 |
2005 |
238.3 |
0.380 |
2006 |
237.9 |
0.380 |
2007 |
237.4 |
0.381 |
2008 |
237.0 |
0.381 |
2009 |
236.5 |
0.382 |
2010 |
236.1 |
0.382 |
2011 |
235.7 |
0.382 |
2012 |
235.2 |
0.382 |
2013 |
234.8 |
0.381 |
2014 |
234.3 |
0.381 |
2015 |
233.9 |
0.380 |
2016 |
233.4 |
0.379 |
2017 |
233.0 |
0.378 |
2018 |
232.5 |
0.377 |
2019 |
232.1 |
0.375 |
2020 |
231.6 |
0.374 |
2021 |
231.2 |
0.372 |
2022 |
230.7 |
0.370 |
2023 |
230.2 |
0.368 |
2024 |
229.7 |
0.366 |
2025 |
229.3 |
0.363 |
2026 |
228.8 |
0.361 |
2027 |
228.3 |
0.358 |
2028 |
227.8 |
0.355 |
2029 |
227.2 |
0.352 |
2030 |
226.7 |
0.348 |
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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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