13166+5034 STT 263 (HD 115477)
13h 16m 37.18s +50° 34' 16.8" P.A. 138.00 sep 1.7 mag 9.53,9.74 Sp G5 dist. 195.69 pc (638.34 l.y.)
Coord 2000 |
13166+5034 |
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Discov num |
STT 263 |
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Comp |
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Coord arcsec 2000 |
13 16 37.18 +50 34 16.8 |
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Date first |
1843 |
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Date last |
2019 |
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Obs |
71 |
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Pa first |
132 |
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Pa last |
137.5 |
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P.A. Now (θ) |
137.5° |
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Sep first |
2.2 |
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Sep last |
1.749 |
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Sep. Now (ρ) |
1.749" |
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Mag pri |
9.53 |
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Mag sec |
9.74 |
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delta mag (ΔM) |
0.21 |
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Spectral class |
G5 (yellow) |
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Pri motion ra |
-045 |
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Sec motion ra |
-051 |
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Pri motion dec |
+023 |
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Sec motion dec |
+031 |
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Notes |
O
(Orbital solution) |
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rPM=0.168 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 115477 |
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Constellation |
Canes Venatici |
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HIP |
64782 |
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Tycho2 |
3462-01433-1 |
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Gaia DR2 |
1556642353052206336 |
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HD |
115477 |
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ADS |
8843 |
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BD |
BD+51 1826 |
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Distance |
195.69 |
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Distance ly |
638.34 |
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ORBITAL ELEMENTS
Period (P) | 2112.5808y | ± 971.3561 |
Periastron (T) | 1706.9017y | ± 446.9001 |
Semi-major axis (a) | 4.42057a | ± 2.56109 |
Eccentricity (e) | 0.74348 | ± 0.20841 |
Inclination (i) | 85.036° | ± 6.71 |
Longitude of periastron (ω) | 287.456° | ± 18.592 |
Node (Ω) | 124.763° | ± 19.914 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
136.4 |
1.811 |
2001 |
136.4 |
1.807 |
2002 |
136.5 |
1.803 |
2003 |
136.5 |
1.799 |
2004 |
136.6 |
1.795 |
2005 |
136.7 |
1.791 |
2006 |
136.7 |
1.787 |
2007 |
136.8 |
1.783 |
2008 |
136.8 |
1.779 |
2009 |
136.9 |
1.775 |
2010 |
137.0 |
1.771 |
2011 |
137.0 |
1.767 |
2012 |
137.1 |
1.763 |
2013 |
137.1 |
1.759 |
2014 |
137.2 |
1.755 |
2015 |
137.3 |
1.751 |
2016 |
137.3 |
1.747 |
2017 |
137.4 |
1.743 |
2018 |
137.5 |
1.739 |
2019 |
137.5 |
1.735 |
2020 |
137.6 |
1.731 |
2021 |
137.7 |
1.727 |
2022 |
137.7 |
1.722 |
2023 |
137.8 |
1.718 |
2024 |
137.8 |
1.714 |
2025 |
137.9 |
1.710 |
2026 |
138.0 |
1.706 |
2027 |
138.0 |
1.702 |
2028 |
138.1 |
1.698 |
2029 |
138.2 |
1.693 |
2030 |
138.2 |
1.689 |
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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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