11162+3136 A 2157 (HD 97936)
11h 16m 14.98s +31° 36' 18.1" P.A. 3.00 sep 1.4 mag 9.25,12.21 Sp K0 dist. 324.68 pc (1059.11 l.y.)
| Coord 2000 |
11162+3136 |
|
Discov num |
A 2157 |
|
Comp |
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Coord arcsec 2000 |
11 16 14.98 +31 36 18.1 |
|
| Date first |
1910 |
|
Date last |
2018 |
|
Obs |
14 |
|
| Pa first |
0 |
|
Pa last |
2.9 |
|
P.A. Now (θ) |
2.9° |
|
| Sep first |
1.0 |
|
Sep last |
1.41 |
|
Sep. Now (ρ) |
1.41" |
|
| Mag pri |
9.25 |
|
Mag sec |
12.21 |
|
delta mag (ΔM) |
2.96 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-019 |
|
Sec motion ra |
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|
| Pri motion dec |
-001 |
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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 97936 |
|
Constellation |
Ursa Major |
|
SAO |
62471 |
|
HIP |
55055 |
|
| Tycho2 |
2520-00345-1 |
|
Gaia DR2 |
756849176872276352 |
|
HD |
97936 |
|
ADS |
8109 |
|
| BD |
BD+32 2125 |
|
Distance |
324.68 |
|
Distance ly |
1059.11 |
|
ORBITAL ELEMENTS
| Period (P) | 619.93y | |
Periastron (T) | 2043.77y | |
Semi-major axis (a) | 1.3822a | |
| Eccentricity (e) | 0.2048 | |
Inclination (i) | 162.85° | |
Longitude of periastron (ω) | 286.72° | |
| Node (Ω) | 135.96° | |
Notes | | |
Reference | Pop1996b | |
| Equinox | 2000 | |
Last observation | 1983 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
248.5 |
1.097 |
| 2001 |
247.6 |
1.095 |
| 2002 |
246.8 |
1.093 |
| 2003 |
245.9 |
1.091 |
| 2004 |
245.0 |
1.089 |
| 2005 |
244.2 |
1.087 |
| 2006 |
243.3 |
1.085 |
| 2007 |
242.4 |
1.083 |
| 2008 |
241.5 |
1.081 |
| 2009 |
240.6 |
1.079 |
| 2010 |
239.7 |
1.077 |
| 2011 |
238.8 |
1.075 |
| 2012 |
237.9 |
1.074 |
| 2013 |
237.0 |
1.072 |
| 2014 |
236.1 |
1.071 |
| 2015 |
235.2 |
1.069 |
| 2016 |
234.3 |
1.068 |
| 2017 |
233.4 |
1.066 |
| 2018 |
232.5 |
1.065 |
| 2019 |
231.6 |
1.064 |
| 2020 |
230.6 |
1.063 |
| 2021 |
229.7 |
1.062 |
| 2022 |
228.8 |
1.061 |
| 2023 |
227.9 |
1.060 |
| 2024 |
227.0 |
1.059 |
| 2025 |
226.0 |
1.058 |
| 2026 |
225.1 |
1.057 |
| 2027 |
224.2 |
1.056 |
| 2028 |
223.2 |
1.056 |
| 2029 |
222.3 |
1.055 |
| 2030 |
221.4 |
1.055 |
|
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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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