10281+4847 KUI  50

 
 
10h 28m 03.88s +48 47' 05.6" P.A. 18.30 sep 4.5 mag 6.40,12.60 Sp F9V dist. 22.91 pc (74.73 l.y.)
 
 
Coord 2000
10281+4847
Discov num
KUI  50
Comp
Coord arcsec 2000
10 28 03.88 +48 47 05.6
Date first
1939
Date last
2016
Obs
16
Pa first
15
Pa last
22
P.A. Now (θ)
18.3°
Sep first
4.5
Sep last
3.9
Sep. Now (ρ)
4.5"
Mag pri
6.40
Mag sec
12.60
delta mag (ΔM)
6.2
Spectral class
F9V (yellow-white)
Pri motion ra
+083
Sec motion ra
+083
Pri motion dec
-882
Sec motion dec
-882
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
22.2
Precise sep
3.95
Constellation
Ursa Major
SAO
43351
HIP
51248
Tycho2
3438-00194-1
HD
90508
HR
4098
GL
Gl 392A
BD
BD+49 1961
Distance
22.91
Distance ly
74.73
last precise pa
22.2
last precise sep
3.95
 
 
ORBITAL ELEMENTS
 
 
Period (P)80.5919y± 3.4409 Periastron (T)1981.1102y± 5.1743 Semi-major axis (a)8.4573a± 3.32265
Eccentricity (e)0.99± 0.02207 Inclination (i)95.283°± 2.425 Longitude of periastron (ω)284.665°± 7.248
Node (Ω)178.811°± 7.955 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2012
label rho theta
2000 2.840 24.7
2001 2.954 24.2
2002 3.064 23.7
2003 3.171 23.3
2004 3.273 22.9
2005 3.373 22.5
2006 3.468 22.1
2007 3.560 21.8
2008 3.649 21.5
2009 3.735 21.2
2010 3.817 20.9
2011 3.895 20.6
2012 3.971 20.3
2013 4.043 20.1
2014 4.111 19.8
2015 4.177 19.6
2016 4.239 19.4
2017 4.298 19.1
2018 4.353 18.9
2019 4.405 18.7
2020 4.454 18.5
2021 4.499 18.3
2022 4.541 18.1
2023 4.580 17.9
2024 4.615 17.7
2025 4.646 17.5
2026 4.674 17.3
2027 4.699 17.1
2028 4.719 16.9
2029 4.736 16.7
2030 4.749 16.5


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



 
 


wds10281%2B4847c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10281+4847 KUI 50 2006 11 21 3.6 6.44 7.38 F9V O V 102803.88+484705.6
10281+4847 KUI 50 2012 12 22 4.0 6.44 7.38 F9V O 102803.88+484705.6
10281+4847 KUI 50 2015 13 22 4.0 6.40 12.60 F9V O 102803.88+484705.6

If you need more information about this double, apply for a data request form to the WDS.