13598-0333 HDS 1962 (HD 122106)
13h 59m 49.30s -03° 32' 58.7" P.A. 48.00 sep 0.1 mag 6.87,7.88 Sp F8V dist. 77.52 pc (252.87 l.y.)
| Coord 2000 |
13598-0333 |
|
Discov num |
HDS1962 |
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Comp |
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Coord arcsec 2000 |
13 59 49.30 -03 32 58.7 |
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| Date first |
1991 |
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Date last |
2021 |
|
Obs |
17 |
|
| Pa first |
53 |
|
Pa last |
47.8 |
|
P.A. Now (θ) |
72.7° |
|
| Sep first |
0.1 |
|
Sep last |
0.095 |
|
Sep. Now (ρ) |
0.08" |
|
| Mag pri |
6.87 |
|
Mag sec |
7.88 |
|
delta mag (ΔM) |
1.01 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
-030 |
|
Sec motion ra |
|
|
| Pri motion dec |
-056 |
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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 122106 |
|
Constellation |
Virgo |
|
SAO |
139666 |
|
HIP |
68380 |
|
| Tycho2 |
4971-00833-1 |
|
Gaia DR2 |
3645467949064189312 |
|
HD |
122106 |
|
HR |
5258 |
|
| GC |
18919 |
|
BD |
BD-02 3768 |
|
FK5 |
1362 |
|
Distance |
77.52 |
|
| Distance ly |
252.87 |
|
ORBITAL ELEMENTS
| Period (P) | 9.764y | ± 0.07 |
Periastron (T) | 2008.36y | ± 0.07 |
Semi-major axis (a) | 0.0785a | ± 0.0016 |
| Eccentricity (e) | 0.405 | ± 0.014 |
Inclination (i) | 57° | ± 1.2 |
Longitude of periastron (ω) | 235.3° | ± 2.3 |
| Node (Ω) | 34.6° | ± 1.6 |
Notes | | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
19.6 |
0.065 |
| 2001 |
38.2 |
0.089 |
| 2002 |
51.3 |
0.094 |
| 2003 |
65.0 |
0.086 |
| 2004 |
83.1 |
0.072 |
| 2005 |
111.2 |
0.057 |
| 2006 |
151.0 |
0.052 |
| 2007 |
189.1 |
0.057 |
| 2008 |
227.1 |
0.047 |
| 2009 |
339.5 |
0.033 |
| 2010 |
25.2 |
0.073 |
| 2011 |
41.5 |
0.092 |
| 2012 |
54.4 |
0.093 |
| 2013 |
68.7 |
0.083 |
| 2014 |
88.6 |
0.068 |
| 2015 |
119.8 |
0.055 |
| 2016 |
160.7 |
0.053 |
| 2017 |
197.1 |
0.058 |
| 2018 |
242.0 |
0.038 |
| 2019 |
358.4 |
0.043 |
| 2020 |
29.8 |
0.079 |
| 2021 |
44.6 |
0.093 |
| 2022 |
57.5 |
0.092 |
| 2023 |
72.7 |
0.080 |
| 2024 |
94.7 |
0.064 |
| 2025 |
129.1 |
0.053 |
| 2026 |
170.0 |
0.054 |
| 2027 |
205.3 |
0.057 |
| 2028 |
265.2 |
0.030 |
| 2029 |
10.1 |
0.053 |
| 2030 |
33.8 |
0.084 |
|
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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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