12186-1424 YSC 44 (HD 107040)
12h 18m 35.40s -14° 24' 25.8" P.A. 72.00 sep 0.1 mag 8.20,8.50 Sp F2/3III dist. 128.21 pc (418.22 l.y.)
Coord 2000 |
12186-1424 |
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Discov num |
YSC 44 |
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Comp |
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Coord arcsec 2000 |
12 18 35.40 -14 24 25.8 |
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Date first |
2007 |
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Date last |
2021 |
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Obs |
12 |
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Pa first |
61 |
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Pa last |
72 |
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P.A. Now (θ) |
65.6° |
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Sep first |
0.1 |
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Sep last |
0.083 |
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Sep. Now (ρ) |
0.09" |
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Mag pri |
8.20 |
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Mag sec |
8.50 |
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delta mag (ΔM) |
0.3 |
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Spectral class |
F2/3III (yellow-white) |
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Pri motion ra |
-054 |
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Sec motion ra |
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Pri motion dec |
-005 |
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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 107040 |
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Constellation |
Corvus |
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SAO |
157202 |
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HIP |
60022 |
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Tycho2 |
5532-01650-1 |
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Gaia DR2 |
3569903875006499072 |
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HD |
107040 |
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BD |
BD-13 3514 |
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Distance |
128.21 |
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Distance ly |
418.22 |
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ORBITAL ELEMENTS
Period (P) | 17.19y | ± 0.9 |
Periastron (T) | 2011.66y | ± 0.06 |
Semi-major axis (a) | 0.072a | ± 0.002 |
Eccentricity (e) | 0.63 | ± 0.029 |
Inclination (i) | 105.6° | ± 1 |
Longitude of periastron (ω) | 126.3° | ± 3.7 |
Node (Ω) | 54.5° | ± 1.8 |
Notes | | |
Reference | Tok2021c | |
Equinox | 2000 | |
Last observation | 2020 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
97.1 |
0.041 |
2001 |
86.5 |
0.052 |
2002 |
79.7 |
0.064 |
2003 |
74.9 |
0.073 |
2004 |
71.1 |
0.081 |
2005 |
67.9 |
0.087 |
2006 |
65.0 |
0.090 |
2007 |
62.2 |
0.089 |
2008 |
59.2 |
0.084 |
2009 |
55.6 |
0.073 |
2010 |
50.0 |
0.053 |
2011 |
28.7 |
0.019 |
2012 |
238.8 |
0.028 |
2013 |
218.9 |
0.035 |
2014 |
196.0 |
0.028 |
2015 |
159.0 |
0.023 |
2016 |
121.6 |
0.028 |
2017 |
99.9 |
0.038 |
2018 |
88.1 |
0.050 |
2019 |
80.8 |
0.062 |
2020 |
75.7 |
0.072 |
2021 |
71.8 |
0.080 |
2022 |
68.5 |
0.086 |
2023 |
65.6 |
0.090 |
2024 |
62.8 |
0.090 |
2025 |
59.8 |
0.086 |
2026 |
56.4 |
0.076 |
2027 |
51.4 |
0.058 |
2028 |
37.5 |
0.026 |
2029 |
245.6 |
0.022 |
2030 |
222.3 |
0.036 |
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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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