11366+5608 STF 1553 (HD 100831)
11h 36m 35.69s +56° 08' 07.3" P.A. 165.00 sep 6.2 mag 7.73,8.17 Sp G5+K7V dist. 46.99 pc (153.28 l.y.)
Coord 2000 |
11366+5608 |
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Discov num |
STF1553 |
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Comp |
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Coord arcsec 2000 |
11 36 35.69 +56 08 07.3 |
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Date first |
1828 |
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Date last |
2019 |
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Obs |
151 |
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Pa first |
177 |
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Pa last |
165.4 |
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P.A. Now (θ) |
165.4° |
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Sep first |
8.0 |
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Sep last |
6.194 |
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Sep. Now (ρ) |
6.194" |
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Mag pri |
7.73 |
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Mag sec |
8.17 |
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delta mag (ΔM) |
0.44 |
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Spectral class |
G5+K7V (yellow/yellow-orange) |
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Pri motion ra |
-178 |
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Sec motion ra |
-175 |
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Pri motion dec |
-092 |
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Sec motion dec |
-091 |
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Notes |
N
O
V
(See Notes, Orbital solution, Proper motion indicates physical) |
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rPM=0.016 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 100831 |
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Constellation |
Ursa Major |
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SAO |
28071 |
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HIP |
56622 |
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Tycho2 |
3835-00767-1 |
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HD |
100831 |
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GC |
15910 |
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ADS |
8236 |
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BD |
BD+56 1529 |
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Distance |
46.99 |
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Distance ly |
153.28 |
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ORBITAL ELEMENTS
Period (P) | 1996y | ± 315 |
Periastron (T) | 1247y | ± 211 |
Semi-major axis (a) | 4.611a | ± 0.399 |
Eccentricity (e) | 0.39 | ± 0.16 |
Inclination (i) | 110.4° | ± 2.4 |
Longitude of periastron (ω) | 200° | ± 36 |
Node (Ω) | 165.8° | ± 7.5 |
Notes | n | |
Reference | Kiy2018a | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
166.4 |
6.129 |
2001 |
166.4 |
6.132 |
2002 |
166.3 |
6.134 |
2003 |
166.3 |
6.137 |
2004 |
166.3 |
6.139 |
2005 |
166.2 |
6.142 |
2006 |
166.2 |
6.144 |
2007 |
166.2 |
6.146 |
2008 |
166.1 |
6.149 |
2009 |
166.1 |
6.151 |
2010 |
166.1 |
6.153 |
2011 |
166.0 |
6.156 |
2012 |
166.0 |
6.158 |
2013 |
166.0 |
6.160 |
2014 |
165.9 |
6.162 |
2015 |
165.9 |
6.165 |
2016 |
165.9 |
6.167 |
2017 |
165.8 |
6.169 |
2018 |
165.8 |
6.171 |
2019 |
165.8 |
6.173 |
2020 |
165.7 |
6.175 |
2021 |
165.7 |
6.177 |
2022 |
165.7 |
6.179 |
2023 |
165.6 |
6.181 |
2024 |
165.6 |
6.183 |
2025 |
165.6 |
6.185 |
2026 |
165.5 |
6.187 |
2027 |
165.5 |
6.189 |
2028 |
165.5 |
6.191 |
2029 |
165.4 |
6.193 |
2030 |
165.4 |
6.195 |
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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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SUSPECTED ORBITAL ELEMENTS
Identifier | 11366+5608 STF1553 B |
coord_arcsec_2000 | 113635.89+560801.5 |
Period (P) | 4.627y | |
Periastron (T) | 1993.048y | |
Semi-major axis (a) | 23.1m | ± 2.6 |
Eccentricity (e) | 0.648 | |
Inclination (i) | 86.5° | ± 5.1 |
Longitude of periastron (ω) | 55.4° | ± 13.9 |
Node (Ω) | 203.1° | ± 3.1 |
Notes | | |
Reference | Kiy2018a | |
Equinox | | |
Last observation | 2018 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
28.2 |
0.022 |
2001 |
41.9 |
0.006 |
2002 |
200.2 |
0.011 |
2003 |
23.5 |
0.023 |
2004 |
26.2 |
0.027 |
2005 |
30.2 |
0.017 |
2006 |
151.2 |
0.002 |
2007 |
262.4 |
0.001 |
2008 |
24.6 |
0.027 |
2009 |
27.3 |
0.024 |
2010 |
34.3 |
0.011 |
2011 |
195.0 |
0.008 |
2012 |
22.3 |
0.017 |
2013 |
25.5 |
0.028 |
2014 |
28.7 |
0.020 |
2015 |
51.3 |
0.004 |
2016 |
202.2 |
0.011 |
2017 |
23.9 |
0.025 |
2018 |
26.5 |
0.026 |
2019 |
31.1 |
0.015 |
2020 |
179.7 |
0.004 |
2021 |
18.6 |
0.007 |
2022 |
24.9 |
0.028 |
2023 |
27.7 |
0.023 |
2024 |
36.8 |
0.008 |
2025 |
197.9 |
0.010 |
2026 |
23.0 |
0.021 |
2027 |
25.8 |
0.028 |
2028 |
29.4 |
0.018 |
2029 |
78.0 |
0.002 |
2030 |
204.8 |
0.008 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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