12567-4741 I 83 (HD 112361)
12h 56m 39.54s -47° 41' 10.7" P.A. 238.00 sep 0.8 mag 7.39,7.68 Sp F5IV/V dist. 81.04 pc (264.35 l.y.)
| Coord 2000 |
12567-4741 |
|
Discov num |
I 83 |
|
Comp |
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|
Coord arcsec 2000 |
12 56 39.54 -47 41 10.7 |
|
| Date first |
1896 |
|
Date last |
2019 |
|
Obs |
66 |
|
| Pa first |
270 |
|
Pa last |
237.6 |
|
P.A. Now (θ) |
237.9° |
|
| Sep first |
0.8 |
|
Sep last |
0.838 |
|
Sep. Now (ρ) |
0.835" |
|
| Mag pri |
7.39 |
|
Mag sec |
7.68 |
|
delta mag (ΔM) |
0.29 |
|
Spectral class |
F5IV/V (yellow-white) |
|
| Pri motion ra |
-060 |
|
Sec motion ra |
-060 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 112361 |
|
Constellation |
Centaurus |
|
SAO |
223774 |
|
HIP |
63182 |
|
| Tycho2 |
8250-00344-1 |
|
Gaia DR2 |
6085891799999588864 |
|
HD |
112361 |
|
GC |
17559 |
|
| CD |
CD-47 7972 |
|
CP |
CP-47 5737 |
|
Distance |
81.04 |
|
Distance ly |
264.35 |
|
ORBITAL ELEMENTS
| Period (P) | 173.8351y | ± 25.1134 |
Periastron (T) | 1918.1949y | ± 2.3476 |
Semi-major axis (a) | 0.50986a | ± 0.02609 |
| Eccentricity (e) | 0.69834 | ± 0.0558 |
Inclination (i) | 53.039° | ± 6.368 |
Longitude of periastron (ω) | 343.006° | ± 23.026 |
| Node (Ω) | 62.472° | ± 10.321 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2014 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
230.4 |
0.832 |
| 2001 |
230.7 |
0.834 |
| 2002 |
231.0 |
0.837 |
| 2003 |
231.4 |
0.839 |
| 2004 |
231.7 |
0.840 |
| 2005 |
232.0 |
0.842 |
| 2006 |
232.3 |
0.843 |
| 2007 |
232.7 |
0.844 |
| 2008 |
233.0 |
0.845 |
| 2009 |
233.3 |
0.846 |
| 2010 |
233.6 |
0.847 |
| 2011 |
234.0 |
0.847 |
| 2012 |
234.3 |
0.847 |
| 2013 |
234.6 |
0.847 |
| 2014 |
234.9 |
0.847 |
| 2015 |
235.3 |
0.846 |
| 2016 |
235.6 |
0.846 |
| 2017 |
235.9 |
0.845 |
| 2018 |
236.2 |
0.844 |
| 2019 |
236.6 |
0.842 |
| 2020 |
236.9 |
0.841 |
| 2021 |
237.2 |
0.839 |
| 2022 |
237.5 |
0.837 |
| 2023 |
237.9 |
0.835 |
| 2024 |
238.2 |
0.833 |
| 2025 |
238.5 |
0.830 |
| 2026 |
238.9 |
0.827 |
| 2027 |
239.2 |
0.824 |
| 2028 |
239.6 |
0.821 |
| 2029 |
239.9 |
0.818 |
| 2030 |
240.3 |
0.814 |
|
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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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