11221+4655 FR 1
11h 22m 05.75s +46° 54' 30.2" P.A. 254.00 sep 0.7 mag 6.60, Sp K6V dist. 25.42 pc (82.92 l.y.)
| Coord 2000 |
11221+4655 |
|
Discov num |
FR 1 |
|
Comp |
|
|
Coord arcsec 2000 |
11 22 05.75 +46 54 30.2 |
|
| Date first |
2012 |
|
Date last |
2021 |
|
Obs |
5 |
|
| Pa first |
292 |
|
Pa last |
254 |
|
P.A. Now (θ) |
254° |
|
| Sep first |
0.5 |
|
Sep last |
0.748 |
|
Sep. Now (ρ) |
0.748" |
|
| Mag pri |
6.60 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
K6V (yellow-orange) |
|
| Pri motion ra |
-197 |
|
Sec motion ra |
|
|
| Pri motion dec |
-135 |
|
Sec motion dec |
|
|
| Notes |
O
K
(Orbital solution, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ursa Major |
|
SAO |
43715 |
|
HIP |
55507 |
|
BD |
BD+47 1863 |
|
| Distance |
25.42 |
|
Distance ly |
82.92 |
|
ORBITAL ELEMENTS
| Period (P) | 210y | ± 80 |
Periastron (T) | 50600d (1997.414y) | ± 2000 |
Semi-major axis (a) | 1.33a | ± 0.28 |
| Eccentricity (e) | 0.31 | ± 0.12 |
Inclination (i) | 117.5° | ± 1.5 |
Longitude of periastron (ω) | 231° | ± 19 |
| Node (Ω) | 219.9° | ± 2.2 |
Notes | | |
Reference | Fr_2023a | |
| Equinox | | |
Last observation | 2021 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
1.4 |
0.591 |
| 2001 |
357.4 |
0.563 |
| 2002 |
353.0 |
0.538 |
| 2003 |
348.2 |
0.514 |
| 2004 |
342.9 |
0.493 |
| 2005 |
337.3 |
0.475 |
| 2006 |
331.2 |
0.461 |
| 2007 |
324.8 |
0.451 |
| 2008 |
318.1 |
0.447 |
| 2009 |
311.5 |
0.447 |
| 2010 |
304.8 |
0.452 |
| 2011 |
298.5 |
0.462 |
| 2012 |
292.4 |
0.476 |
| 2013 |
286.7 |
0.494 |
| 2014 |
281.5 |
0.516 |
| 2015 |
276.7 |
0.541 |
| 2016 |
272.4 |
0.568 |
| 2017 |
268.4 |
0.597 |
| 2018 |
264.9 |
0.627 |
| 2019 |
261.7 |
0.658 |
| 2020 |
258.7 |
0.691 |
| 2021 |
256.1 |
0.723 |
| 2022 |
253.6 |
0.756 |
| 2023 |
251.4 |
0.789 |
| 2024 |
249.4 |
0.822 |
| 2025 |
247.5 |
0.855 |
| 2026 |
245.7 |
0.887 |
| 2027 |
244.1 |
0.919 |
| 2028 |
242.5 |
0.951 |
| 2029 |
241.1 |
0.981 |
| 2030 |
239.8 |
1.012 |
| 2031 |
238.5 |
1.041 |
| 2032 |
237.3 |
1.070 |
| 2033 |
236.2 |
1.098 |
| 2034 |
235.1 |
1.125 |
| 2035 |
234.1 |
1.152 |
| 2036 |
233.1 |
1.177 |
| 2037 |
232.2 |
1.202 |
| 2038 |
231.3 |
1.226 |
| 2039 |
230.4 |
1.249 |
| 2040 |
229.5 |
1.271 |
| 2041 |
228.7 |
1.293 |
| 2042 |
228.0 |
1.313 |
| 2043 |
227.2 |
1.333 |
| 2044 |
226.5 |
1.351 |
| 2045 |
225.7 |
1.369 |
| 2046 |
225.0 |
1.386 |
| 2047 |
224.4 |
1.403 |
| 2048 |
223.7 |
1.418 |
| 2049 |
223.0 |
1.433 |
| 2050 |
222.4 |
1.446 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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