11551+4629 A 1777 AB
11h 55m 05.74s +46° 28' 36.6" P.A. 358.00 sep 0.3 mag 6.50,9.00 Sp A3Vn dist. 211.86 pc (691.09 l.y.)
Coord 2000 |
11551+4629 |
|
Discov num |
A 1777 |
|
Comp |
AB |
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Coord arcsec 2000 |
11 55 05.74 +46 28 36.6 |
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Date first |
1908 |
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Date last |
2019 |
|
Obs |
39 |
|
Pa first |
3 |
|
Pa last |
358.1 |
|
P.A. Now (θ) |
358.1° |
|
Sep first |
0.3 |
|
Sep last |
0.25 |
|
Sep. Now (ρ) |
0.25" |
|
Mag pri |
6.50 |
|
Mag sec |
9.00 |
|
delta mag (ΔM) |
2.5 |
|
Spectral class |
A3Vn (white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
+000 |
|
Sec motion dec |
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|
Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
11551+4629 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
43945 |
11 55 06 +46 28 37 |
A 1777 AB |
2019 |
39 |
358 |
0.3 |
6.50 |
9.00 |
2.50 |
Y |
<=== |
Show |
65 UMa |
43945 |
11 55 06 +46 28 37 |
STF 1579 AB,C |
2021 |
87 |
44 |
3.7 |
6.68 |
8.32 |
1.64 |
|
|
Show |
|
43945 |
11 55 06 +46 28 37 |
STF 1579 AB,D |
2021 |
73 |
114 |
62.9 |
6.68 |
6.97 |
0.29 |
|
|
Show |
|
43946 |
11 55 06 +46 28 40 |
STF 1579 CD |
2018 |
14 |
117 |
61.9 |
8.32 |
6.97 |
1.35 |
|
|
Show |
|
43946 |
11 55 11 +46 28 11 |
BAG 46 Da,Db |
2018 |
4 |
326 |
0.1 |
7.10 |
9.20 |
2.10 |
|
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Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
DN UMa |
|
Constellation |
Ursa Major |
|
SAO |
43945 |
|
HIP |
58112 |
|
Tycho2 |
3452-02143-2 |
|
Gaia DR2 |
774274752546451840 |
|
HD |
103483 |
|
HR |
4560 |
|
GC |
16296 |
|
ADS |
8347 |
|
BD |
BD+47 1913 |
|
Flamsteed |
65 Ursae Majoris |
|
Flamsteed name |
65 UMa |
|
Distance |
211.86 |
|
Distance ly |
691.09 |
|
ORBITAL ELEMENTS
Period (P) | 118.209y | ± 0.69 |
Periastron (T) | 47515.9d (1988.97y) | ± 126.8 |
Semi-major axis (a) | 0.2082a | ± 0.0097 |
Eccentricity (e) | 0.504 | ± 0.006 |
Inclination (i) | 38.1° | ± 2.4 |
Longitude of periastron (ω) | 202.7° | ± 1.3 |
Node (Ω) | 2.1° | ± 4.2 |
Notes | n | |
Reference | Zas2012b | |
Equinox | | |
Last observation | 2007 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
297.9 |
0.125 |
2001 |
303.3 |
0.132 |
2002 |
308.2 |
0.140 |
2003 |
312.5 |
0.148 |
2004 |
316.4 |
0.156 |
2005 |
319.9 |
0.163 |
2006 |
323.2 |
0.171 |
2007 |
326.1 |
0.178 |
2008 |
328.8 |
0.186 |
2009 |
331.3 |
0.193 |
2010 |
333.6 |
0.200 |
2011 |
335.8 |
0.207 |
2012 |
337.8 |
0.213 |
2013 |
339.7 |
0.220 |
2014 |
341.6 |
0.226 |
2015 |
343.3 |
0.231 |
2016 |
344.9 |
0.237 |
2017 |
346.5 |
0.242 |
2018 |
348.0 |
0.247 |
2019 |
349.4 |
0.252 |
2020 |
350.8 |
0.257 |
2021 |
352.1 |
0.261 |
2022 |
353.4 |
0.266 |
2023 |
354.7 |
0.270 |
2024 |
355.9 |
0.273 |
2025 |
357.1 |
0.277 |
2026 |
358.2 |
0.280 |
2027 |
359.4 |
0.283 |
2028 |
0.5 |
0.286 |
2029 |
1.5 |
0.289 |
2030 |
2.6 |
0.291 |
|
|
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 | 11551+4629 A 1777 A |
coord_arcsec_2000 | 115505.74+462836.6 |
Period (P) | 641.5d | ± 16.7 |
Periastron (T) | 49615.4d (1994.718y) | ± 38.9 |
Semi-major axis (a) | 11m | |
Eccentricity (e) | 0.169 | ± 0.048 |
Inclination (i) | 47° | |
Longitude of periastron (ω) | 0° | ± 15.2 |
Node (Ω) | 0° | |
Notes | n | |
Reference | Zas2012b | |
Equinox | | |
Last observation | 2007 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
2.6 |
0.009 |
2001-01-01 |
194.0 |
0.012 |
2002-01-01 |
61.8 |
0.007 |
2003-01-01 |
229.5 |
0.009 |
2004-01-01 |
130.6 |
0.009 |
2005-01-01 |
298.3 |
0.007 |
2006-01-01 |
166.0 |
0.012 |
2007-01-01 |
357.5 |
0.009 |
2008-01-01 |
191.2 |
0.012 |
2009-01-01 |
54.1 |
0.008 |
2010-01-01 |
224.5 |
0.009 |
2011-01-01 |
125.2 |
0.009 |
2012-01-01 |
290.3 |
0.007 |
2013-01-01 |
163.2 |
0.012 |
2014-01-01 |
352.4 |
0.009 |
2015-01-01 |
188.5 |
0.013 |
2016-01-01 |
46.8 |
0.008 |
2017-01-01 |
219.9 |
0.010 |
2018-01-01 |
119.3 |
0.008 |
2019-01-01 |
282.1 |
0.007 |
2020-01-01 |
160.2 |
0.012 |
2021-01-01 |
347.2 |
0.009 |
2022-01-01 |
185.9 |
0.013 |
2023-01-01 |
39.9 |
0.008 |
2024-01-01 |
215.7 |
0.010 |
2025-01-01 |
112.9 |
0.008 |
2026-01-01 |
273.9 |
0.007 |
2027-01-01 |
157.1 |
0.012 |
2028-01-01 |
341.8 |
0.009 |
2029-01-01 |
183.3 |
0.013 |
2030-01-01 |
33.3 |
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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Measures: green=micrometric, blue=interferometric, purple=photographic |
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