13513-2423 WSI 77 (HD 120690)
13h 51m 20.32s -24° 23' 25.3" P.A. 340.00 sep 0.1 mag 6.45,9.90 Sp G5V dist. 19.47 pc (63.51 l.y.)
| Coord 2000 |
13513-2423 |
|
Discov num |
WSI 77 |
|
Comp |
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Coord arcsec 2000 |
13 51 20.32 -24 23 25.3 |
|
| Date first |
2006 |
|
Date last |
2021 |
|
Obs |
23 |
|
| Pa first |
171 |
|
Pa last |
339.6 |
|
P.A. Now (θ) |
339.6° |
|
| Sep first |
0.3 |
|
Sep last |
0.131 |
|
Sep. Now (ρ) |
0.131" |
|
| Mag pri |
6.45 |
|
Mag sec |
9.90 |
|
delta mag (ΔM) |
3.45 |
|
Spectral class |
G5V (yellow) |
|
| Pri motion ra |
-581 |
|
Sec motion ra |
|
|
| Pri motion dec |
-245 |
|
Sec motion dec |
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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 120690 |
|
Constellation |
Hydra |
|
SAO |
182026 |
|
HIP |
67620 |
|
| Tycho2 |
6720-01406-1 |
|
HD |
120690 |
|
HR |
5209 |
|
GC |
18713 |
|
| GL |
Gl 530 |
|
DM |
CD-2311329 |
|
CD |
CD-2311328 |
|
CP |
CP-23 5802 |
|
| Distance |
19.47 |
|
Distance ly |
63.51 |
|
ORBITAL ELEMENTS
| Period (P) | 10.485y | ± 0.06 |
Periastron (T) | 2009.218y | ± 0.028 |
Semi-major axis (a) | 0.2827a | ± 0.0014 |
| Eccentricity (e) | 0.3462 | ± 0.008 |
Inclination (i) | 96.4° | ± 0.2 |
Longitude of periastron (ω) | 137.5° | ± 1.4 |
| Node (Ω) | 171.3° | ± 0.3 |
Notes | n | |
Reference | Tok2012b | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
346.4 |
0.187 |
| 2001 |
329.2 |
0.084 |
| 2002 |
204.1 |
0.070 |
| 2003 |
182.3 |
0.188 |
| 2004 |
177.0 |
0.284 |
| 2005 |
174.1 |
0.339 |
| 2006 |
171.7 |
0.340 |
| 2007 |
168.7 |
0.272 |
| 2008 |
160.5 |
0.119 |
| 2009 |
1.7 |
0.098 |
| 2010 |
349.9 |
0.203 |
| 2011 |
340.9 |
0.140 |
| 2012 |
274.2 |
0.037 |
| 2013 |
187.9 |
0.132 |
| 2014 |
179.1 |
0.242 |
| 2015 |
175.4 |
0.318 |
| 2016 |
172.9 |
0.347 |
| 2017 |
170.4 |
0.315 |
| 2018 |
166.1 |
0.204 |
| 2019 |
99.7 |
0.024 |
| 2020 |
353.7 |
0.177 |
| 2021 |
346.1 |
0.185 |
| 2022 |
328.0 |
0.081 |
| 2023 |
202.4 |
0.073 |
| 2024 |
182.0 |
0.192 |
| 2025 |
176.9 |
0.286 |
| 2026 |
174.1 |
0.340 |
| 2027 |
171.6 |
0.339 |
| 2028 |
168.6 |
0.269 |
| 2029 |
159.9 |
0.114 |
| 2030 |
0.9 |
0.104 |
|
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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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