05447+3118 A 1040 (HD 38105)
05h 44m 41.69s +31° 18' 20.7" P.A. 85.00 sep 0.9 mag 8.91,9.42 Sp G0 dist. 226.76 pc (739.69 l.y.)
Coord 2000 |
05447+3118 |
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Discov num |
A 1040 |
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Comp |
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Coord arcsec 2000 |
05 44 41.69 +31 18 20.7 |
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Date first |
1905 |
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Date last |
2016 |
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Obs |
34 |
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Pa first |
131 |
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Pa last |
84.7 |
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P.A. Now (θ) |
84.7° |
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Sep first |
0.7 |
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Sep last |
0.879 |
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Sep. Now (ρ) |
0.879" |
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Mag pri |
8.91 |
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Mag sec |
9.42 |
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delta mag (ΔM) |
0.51 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-023 |
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Sec motion ra |
-023 |
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Pri motion dec |
-008 |
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Sec motion dec |
-008 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 38105 |
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Constellation |
Auriga |
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SAO |
58387 |
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HIP |
27092 |
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Tycho2 |
2405-00803-1 |
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Gaia DR2 |
3445050172147422208 |
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HD |
38105 |
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ADS |
4317 |
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BD |
BD+31 1072 |
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Distance |
226.76 |
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Distance ly |
739.69 |
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ORBITAL ELEMENTS
Period (P) | 857.8234y | ± 421.4458 |
Periastron (T) | 2063.434y | ± 134.6363 |
Semi-major axis (a) | 1.5376a | ± 0.71052 |
Eccentricity (e) | 0.57783 | ± 0.3085 |
Inclination (i) | 110.188° | ± 12.793 |
Longitude of periastron (ω) | 57.171° | ± 42.239 |
Node (Ω) | 80.192° | ± 22.67 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
91.8 |
0.880 |
2001 |
91.5 |
0.879 |
2002 |
91.1 |
0.878 |
2003 |
90.7 |
0.877 |
2004 |
90.4 |
0.876 |
2005 |
90.0 |
0.875 |
2006 |
89.7 |
0.873 |
2007 |
89.3 |
0.871 |
2008 |
88.9 |
0.869 |
2009 |
88.5 |
0.867 |
2010 |
88.2 |
0.865 |
2011 |
87.8 |
0.863 |
2012 |
87.4 |
0.860 |
2013 |
87.0 |
0.857 |
2014 |
86.7 |
0.855 |
2015 |
86.3 |
0.851 |
2016 |
85.9 |
0.848 |
2017 |
85.5 |
0.844 |
2018 |
85.1 |
0.841 |
2019 |
84.7 |
0.837 |
2020 |
84.3 |
0.833 |
2021 |
83.9 |
0.828 |
2022 |
83.5 |
0.823 |
2023 |
83.1 |
0.819 |
2024 |
82.7 |
0.813 |
2025 |
82.2 |
0.808 |
2026 |
81.8 |
0.802 |
2027 |
81.4 |
0.797 |
2028 |
80.9 |
0.790 |
2029 |
80.5 |
0.784 |
2030 |
80.0 |
0.777 |
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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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