10287+4558 A  1993

 
 
10H 28M 43.86S +45 57' 51.1" P.A. 347.2 SEP 0.22 MAG 9.25,10.22 SP G0 DIST. 104.6 PC (341.21 L.Y.)
 
 
Coord 2000
10287+4558
Discov num
A  1993
Comp
Coord arcsec 2000
10 28 43.86 +45 57 51.1
Date first
1909
Date last
1997
Obs
23
Pa first
46
Pa last
155
P.A. Now (θ)
347.2°
Sep first
0.5
Sep last
0.3
Sep. Now (ρ)
0.22"
Mag pri
9.25
Mag sec
10.22
delta mag (ΔM)
0.97
Spectral class
G0 (yellow)
Pri motion ra
-023
Sec motion ra
Pri motion dec
+010
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
SAO
43357
HIP
51301
Tycho2
3435-00973-1
HD
90619
ADS
7785
BD
BD+46 1631
Distance
104.6
Distance ly
341.21
last precise pa
154.9
last precise sep
0.26
 
 
ORBITAL ELEMENTS
 
 
Period (P)142.61y± 8.7 Periastron (T)2009.78y± 1.8 Semi-major axis (a)0.423a± 0.019
Eccentricity (e)0.655± 0.055 Inclination (i)49.6°± 4.2 Longitude of periastron (ω)80.8°± 1
Node (Ω)177.3°± 2.4 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1997
label rho theta
2000 0.260 165.7
2001 0.247 169.2
2002 0.234 173.0
2003 0.219 177.3
2004 0.202 182.3
2005 0.183 188.3
2006 0.163 195.7
2007 0.142 205.3
2008 0.121 218.2
2009 0.104 235.9
2010 0.095 258.6
2011 0.099 282.6
2012 0.113 302.7
2013 0.133 317.5
2014 0.156 328.1
2015 0.179 336.0
2016 0.200 342.2
2017 0.221 347.2
2018 0.240 351.3
2019 0.258 354.9
2020 0.274 358.1
2021 0.289 0.9
2022 0.303 3.4
2023 0.316 5.7
2024 0.328 7.8
2025 0.339 9.8
2026 0.349 11.7
2027 0.358 13.5
2028 0.367 15.2
2029 0.376 16.8
2030 0.383 18.3

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