13217-3919 HDS 1875 (HD 116064)
13h 21m 43.88s -39° 18' 40.0" P.A. 328.00 sep 0.1 mag 8.96,12.14 Sp G:w... dist. 68.21 pc (222.5 l.y.)
| Coord 2000 |
13217-3919 |
|
Discov num |
HDS1875 |
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Comp |
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Coord arcsec 2000 |
13 21 43.88 -39 18 40.0 |
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| Date first |
1991 |
|
Date last |
2020 |
|
Obs |
7 |
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| Pa first |
183 |
|
Pa last |
328 |
|
P.A. Now (θ) |
328° |
|
| Sep first |
0.3 |
|
Sep last |
0.053 |
|
Sep. Now (ρ) |
0.053" |
|
| Mag pri |
8.96 |
|
Mag sec |
12.14 |
|
delta mag (ΔM) |
3.18 |
|
Spectral class |
G:w... (yellow) |
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| Pri motion ra |
-754 |
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Sec motion ra |
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| Pri motion dec |
+104 |
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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 116064 |
|
Constellation |
Centaurus |
|
SAO |
204389 |
|
HIP |
65201 |
|
| Tycho2 |
7787-01822-1 |
|
HD |
116064 |
|
CD |
CD-38 8457 |
|
CP |
CP-38 5484 |
|
| Distance |
68.21 |
|
Distance ly |
222.5 |
|
ORBITAL ELEMENTS
| Period (P) | 38.11y | |
Periastron (T) | 2019.61y | |
Semi-major axis (a) | 0.205a | |
| Eccentricity (e) | 0.55 | |
Inclination (i) | 117.5° | |
Longitude of periastron (ω) | 228° | |
| Node (Ω) | 189.2° | |
Notes | | |
Reference | Tok2020g | |
| Equinox | 2000 | |
Last observation | 2020 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
163.5 |
0.244 |
| 2001 |
160.8 |
0.235 |
| 2002 |
157.9 |
0.224 |
| 2003 |
154.7 |
0.212 |
| 2004 |
151.1 |
0.200 |
| 2005 |
147.0 |
0.187 |
| 2006 |
142.3 |
0.173 |
| 2007 |
136.8 |
0.160 |
| 2008 |
130.2 |
0.146 |
| 2009 |
122.3 |
0.133 |
| 2010 |
112.9 |
0.122 |
| 2011 |
101.8 |
0.113 |
| 2012 |
89.2 |
0.107 |
| 2013 |
75.5 |
0.105 |
| 2014 |
61.7 |
0.106 |
| 2015 |
48.6 |
0.110 |
| 2016 |
36.4 |
0.114 |
| 2017 |
24.9 |
0.115 |
| 2018 |
12.8 |
0.108 |
| 2019 |
357.2 |
0.088 |
| 2020 |
326.9 |
0.057 |
| 2021 |
263.4 |
0.050 |
| 2022 |
224.8 |
0.083 |
| 2023 |
209.8 |
0.122 |
| 2024 |
201.8 |
0.156 |
| 2025 |
196.5 |
0.184 |
| 2026 |
192.5 |
0.207 |
| 2027 |
189.2 |
0.226 |
| 2028 |
186.4 |
0.241 |
| 2029 |
183.9 |
0.252 |
| 2030 |
181.6 |
0.260 |
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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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