13284+1543 STT 266 (HD 117190)
13h 28m 26.68s +15° 42' 30.5" P.A. 355.00 sep 1.9 mag 7.97,8.42 Sp F5 dist. 50.99 pc (166.33 l.y.)
| Coord 2000 |
13284+1543 |
|
Discov num |
STT 266 |
|
Comp |
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|
Coord arcsec 2000 |
13 28 26.68 +15 42 30.5 |
|
| Date first |
1843 |
|
Date last |
2020 |
|
Obs |
221 |
|
| Pa first |
328 |
|
Pa last |
355.3 |
|
P.A. Now (θ) |
355.3° |
|
| Sep first |
1.0 |
|
Sep last |
1.92 |
|
Sep. Now (ρ) |
1.92" |
|
| Mag pri |
7.97 |
|
Mag sec |
8.42 |
|
delta mag (ΔM) |
0.45 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-057 |
|
Sec motion ra |
-057 |
|
| Pri motion dec |
+013 |
|
Sec motion dec |
+013 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 117190 |
|
Constellation |
Coma Berenices |
|
SAO |
100583 |
|
HIP |
65725 |
|
| Tycho2 |
1458-00684-1 |
|
Gaia DR2 |
3745080296635660032 |
|
HD |
117190 |
|
GC |
18215 |
|
| ADS |
8914 |
|
BD |
BD+16 2513 |
|
Distance |
50.99 |
|
Distance ly |
166.33 |
|
ORBITAL ELEMENTS
| Period (P) | 949.2368y | ± 444.8247 |
Periastron (T) | 1795.0613y | ± 100.819 |
Semi-major axis (a) | 2.11552a | ± 0.57753 |
| Eccentricity (e) | 0.22202 | ± 0.25105 |
Inclination (i) | 70.687° | ± 3.589 |
Longitude of periastron (ω) | 96.075° | ± 50.359 |
| Node (Ω) | 168.898° | ± 7.854 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
355.5 |
2.013 |
| 2001 |
355.7 |
2.012 |
| 2002 |
355.8 |
2.011 |
| 2003 |
355.9 |
2.010 |
| 2004 |
356.1 |
2.008 |
| 2005 |
356.2 |
2.007 |
| 2006 |
356.3 |
2.005 |
| 2007 |
356.5 |
2.004 |
| 2008 |
356.6 |
2.002 |
| 2009 |
356.7 |
2.001 |
| 2010 |
356.9 |
1.999 |
| 2011 |
357.0 |
1.997 |
| 2012 |
357.2 |
1.995 |
| 2013 |
357.3 |
1.993 |
| 2014 |
357.4 |
1.991 |
| 2015 |
357.6 |
1.989 |
| 2016 |
357.7 |
1.987 |
| 2017 |
357.8 |
1.985 |
| 2018 |
358.0 |
1.982 |
| 2019 |
358.1 |
1.980 |
| 2020 |
358.3 |
1.977 |
| 2021 |
358.4 |
1.975 |
| 2022 |
358.5 |
1.972 |
| 2023 |
358.7 |
1.970 |
| 2024 |
358.8 |
1.967 |
| 2025 |
359.0 |
1.964 |
| 2026 |
359.1 |
1.961 |
| 2027 |
359.2 |
1.958 |
| 2028 |
359.4 |
1.955 |
| 2029 |
359.5 |
1.952 |
| 2030 |
359.7 |
1.949 |
|
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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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