11191+3811 CHR 133 AB
11h 19m 07.94s +38° 11' 08.6" P.A. 127.00 sep 0.1 mag 4.78,5.30 Sp A2V dist. 58.82 pc (191.87 l.y.)
| Coord 2000 |
11191+3811 |
|
Discov num |
CHR 133 |
|
Comp |
AB |
|
Coord arcsec 2000 |
11 19 07.94 +38 11 08.6 |
|
| Date first |
1987 |
|
Date last |
2007 |
|
Obs |
16 |
|
| Pa first |
145 |
|
Pa last |
126.6 |
|
P.A. Now (θ) |
138.9° |
|
| Sep first |
0.1 |
|
Sep last |
0.083 |
|
Sep. Now (ρ) |
0.077" |
|
| Mag pri |
4.78 |
|
Mag sec |
5.30 |
|
delta mag (ΔM) |
0.52 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
-057 |
|
Sec motion ra |
|
|
| Pri motion dec |
-068 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
11191+3811 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
62491 |
11 19 08 +38 11 09 |
CHR 133 AB |
2007 |
16 |
127 |
0.1 |
4.78 |
5.30 |
0.52 |
Y |
<=== |
| Show |
55 UMa |
62491 |
11 19 08 +38 11 09 |
DRS 47 AC |
2010 |
1 |
145 |
0.9 |
4.50 |
10.10 |
5.60 |
|
|
| Show |
|
62491 |
11 19 08 +38 11 09 |
DRS 47 AD |
2015 |
7 |
128 |
500.1 |
4.77 |
7.25 |
2.48 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ursa Major |
|
SAO |
62491 |
|
HIP |
55266 |
|
Tycho2 |
3010-02501-1 |
|
| Gaia DR2 |
764027677836546560 |
|
HD |
98353 |
|
HR |
4380 |
|
GC |
15558 |
|
| BD |
BD+38 2225 |
|
Flamsteed |
55 Ursae Majoris |
|
Flamsteed name |
55 UMa |
|
FK5 |
1293 |
|
| Distance |
58.82 |
|
Distance ly |
191.87 |
|
ORBITAL ELEMENTS
| Period (P) | 1872.7d (5.13y) | ± 7.4 |
Periastron (T) | 48805d (1992.499y) | ± 18 |
Semi-major axis (a) | 0.0913a | ± 0.0009 |
| Eccentricity (e) | 0.126 | ± 0.008 |
Inclination (i) | 64.8° | ± 0.8 |
Longitude of periastron (ω) | 43.9° | ± 3.7 |
| Node (Ω) | 130° | ± 0.8 |
Notes | n | |
Reference | Liu1997 | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
325.7 |
0.089 |
| 2001-01-01 |
39.3 |
0.042 |
| 2002-01-01 |
120.4 |
0.081 |
| 2003-01-01 |
174.1 |
0.045 |
| 2004-01-01 |
293.9 |
0.079 |
| 2005-01-01 |
321.9 |
0.093 |
| 2006-01-01 |
22.1 |
0.044 |
| 2007-01-01 |
115.3 |
0.077 |
| 2008-01-01 |
161.1 |
0.054 |
| 2009-01-01 |
288.3 |
0.071 |
| 2010-01-01 |
318.5 |
0.097 |
| 2011-01-01 |
7.5 |
0.049 |
| 2012-01-01 |
109.6 |
0.071 |
| 2013-01-01 |
151.8 |
0.063 |
| 2014-01-01 |
281.2 |
0.062 |
| 2015-01-01 |
315.2 |
0.099 |
| 2016-01-01 |
356.0 |
0.056 |
| 2017-01-01 |
102.9 |
0.065 |
| 2018-01-01 |
144.7 |
0.070 |
| 2019-01-01 |
271.5 |
0.052 |
| 2020-01-01 |
312.0 |
0.099 |
| 2021-01-01 |
347.0 |
0.063 |
| 2022-01-01 |
94.6 |
0.058 |
| 2023-01-01 |
138.9 |
0.077 |
| 2024-01-01 |
257.6 |
0.043 |
| 2025-01-01 |
308.8 |
0.098 |
| 2026-01-01 |
339.9 |
0.070 |
| 2027-01-01 |
84.1 |
0.052 |
| 2028-01-01 |
133.8 |
0.081 |
| 2029-01-01 |
237.7 |
0.037 |
| 2030-01-01 |
305.4 |
0.096 |
|
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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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