11551+4629 A  1777AB (65 UMa)

 
 
11H 55M 05.74S +46 28' 36.6" P.A. 329 SEP 0.2 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
Coord arcsec 2000
11 55 05.74 +46 28 36.6
Date first
1908
Date last
2007
Obs
34
Pa first
3
Pa last
329
P.A. Now (θ)
329°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.2"
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
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
11551+4629 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 65 UMa 43945 11551+4629 A 1777 AB 1908 2007 34 329 0.2 6.50 9.00 2.50 Y <===
Show 43945 11551+4629 STF1579 AB,C 1782 2014 78 42 3.9 6.68 8.32 1.64
Show 43945 11551+4629 STF1579 AB,D 1782 2016 70 114 62.6 6.68 6.97 0.29
Show 43945 11551+4629 STF1579 CD 1970 2006 10 117 62.0 8.32 6.97 1.35
Show 43946 11551+4629 BAG 46 Da,Db 2009 2009 2 334 0.1 7.10 9.20 2.10
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
65 UMa
Var name
DN UMa
Constellation
Ursa Major
SAO
43945
HIP
58112
Tycho2
3452-02143-2
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
last precise pa
328.5
last precise sep
0.181
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
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)± 15.2
Node (Ω) Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation2007
label rho theta
2000-01-01 0.009 2.6
2001-01-01 0.012 194.0
2002-01-01 0.007 61.8
2003-01-01 0.009 229.5
2004-01-01 0.009 130.6
2005-01-01 0.007 298.3
2006-01-01 0.012 166.0
2007-01-01 0.009 357.5
2008-01-01 0.012 191.2
2009-01-01 0.008 54.1
2010-01-01 0.009 224.5
2011-01-01 0.009 125.2
2012-01-01 0.007 290.3
2013-01-01 0.012 163.2
2014-01-01 0.009 352.4
2015-01-01 0.013 188.5
2016-01-01 0.008 46.8
2017-01-01 0.010 219.9
2018-01-01 0.008 119.3
2019-01-01 0.007 282.1
2020-01-01 0.012 160.2
2021-01-01 0.009 347.2
2022-01-01 0.013 185.9
2023-01-01 0.008 39.9
2024-01-01 0.010 215.7
2025-01-01 0.008 112.9
2026-01-01 0.007 273.9
2027-01-01 0.012 157.1
2028-01-01 0.009 341.8
2029-01-01 0.013 183.3
2030-01-01 0.008 33.3

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
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 Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation2007
label rho theta
2000 0.125 297.9
2001 0.132 303.3
2002 0.140 308.2
2003 0.148 312.5
2004 0.156 316.4
2005 0.163 319.9
2006 0.171 323.2
2007 0.178 326.1
2008 0.186 328.8
2009 0.193 331.3
2010 0.200 333.6
2011 0.207 335.8
2012 0.213 337.8
2013 0.220 339.7
2014 0.226 341.6
2015 0.231 343.3
2016 0.237 344.9
2017 0.242 346.5
2018 0.247 348.0
2019 0.252 349.4
2020 0.257 350.8
2021 0.261 352.1
2022 0.266 353.4
2023 0.270 354.7
2024 0.273 355.9
2025 0.277 357.1
2026 0.280 358.2
2027 0.283 359.4
2028 0.286 0.5
2029 0.289 1.5
2030 0.291 2.6

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic