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 |
|
Discov num |
STT 263 |
|
Comp |
|
|
Coord arcsec 2000 |
13 16 37.18 +50 34 16.8 |
|
| Date first |
1843 |
|
Date last |
2019 |
|
Obs |
71 |
|
| Pa first |
132 |
|
Pa last |
137.5 |
|
P.A. Now (θ) |
137.5° |
|
| Sep first |
2.2 |
|
Sep last |
1.749 |
|
Sep. Now (ρ) |
1.749" |
|
| Mag pri |
9.53 |
|
Mag sec |
9.74 |
|
delta mag (ΔM) |
0.21 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-045 |
|
Sec motion ra |
-051 |
|
| Pri motion dec |
+023 |
|
Sec motion dec |
+031 |
|
| Notes |
O
(Orbital solution) |
|
rPM=0.168 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 115477 |
|
Constellation |
Canes Venatici |
|
HIP |
64782 |
|
Tycho2 |
3462-01433-1 |
|
| Gaia DR2 |
1556642353052206336 |
|
HD |
115477 |
|
ADS |
8843 |
|
BD |
BD+51 1826 |
|
| Distance |
195.69 |
|
Distance ly |
638.34 |
|
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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