10281+4847 KUI  50

 
 
10h 28m 03.88s +48 47' 05.6" P.A. 22.8 sep 3.79 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
2012
Obs
12
Pa first
15
Pa last
22
P.A. Now (θ)
22.8°
Sep first
4.5
Sep last
4.0
Sep. Now (ρ)
3.79"
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
Precise sep
3.981
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
last precise sep
3.981
 
 
ORBITAL ELEMENTS
 
 
Period (P)590y± 208 Periastron (T)1958.6y± 16.8 Semi-major axis (a)4.67a± 0.12
Eccentricity (e)0 Inclination (i)81.4°± 3.5 Longitude of periastron (ω)
Node (Ω)16.5°± 1.9 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2012
label rho theta
2000 4.234 20.5
2001 4.213 20.6
2002 4.192 20.8
2003 4.170 20.9
2004 4.147 21.0
2005 4.125 21.1
2006 4.101 21.2
2007 4.078 21.3
2008 4.054 21.5
2009 4.029 21.6
2010 4.004 21.7
2011 3.979 21.8
2012 3.953 22.0
2013 3.927 22.1
2014 3.900 22.2
2015 3.873 22.3
2016 3.845 22.5
2017 3.817 22.6
2018 3.789 22.8
2019 3.760 22.9
2020 3.731 23.0
2021 3.701 23.2
2022 3.671 23.3
2023 3.641 23.5
2024 3.610 23.6
2025 3.579 23.8
2026 3.548 23.9
2027 3.516 24.1
2028 3.483 24.3
2029 3.451 24.4
2030 3.418 24.6

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

grafico orbita





wds10281%2B4847a.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

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