11056+5448 A  1591

 
 
11H 05M 34.65S +54 48' 28.7" P.A. 104.7 SEP 0.2 MAG 8.98,9.52 SP G0 DIST. 135.87 PC (443.21 L.Y.)
 
 
Coord 2000
11056+5448
Discov num
A  1591
Comp
Coord arcsec 2000
11 05 34.65 +54 48 28.7
Date first
1907
Date last
2007
Obs
20
Pa first
118
Pa last
134
P.A. Now (θ)
104.7°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
8.98
Mag sec
9.52
delta mag (ΔM)
0.54
Spectral class
G0 (yellow)
Pri motion ra
+034
Sec motion ra
Pri motion dec
+019
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
SAO
27895
HIP
54216
Tycho2
3824-01021-1
HD
96061
ADS
8050
BD
BD+55 1440
Distance
135.87
Distance ly
443.21
last precise pa
133.6
last precise sep
0.157
 
 
ORBITAL ELEMENTS
 
 
Period (P)105y Periastron (T)1993y Semi-major axis (a)0.205a
Eccentricity (e)0.45 Inclination (i)143.5° Longitude of periastron (ω)171°
Node (Ω)52.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1974
label rho theta
2000 0.119 185.3
2001 0.121 178.1
2002 0.123 171.1
2003 0.126 164.4
2004 0.129 158.1
2005 0.133 152.1
2006 0.138 146.5
2007 0.143 141.2
2008 0.148 136.3
2009 0.153 131.7
2010 0.159 127.5
2011 0.165 123.5
2012 0.171 119.8
2013 0.176 116.4
2014 0.182 113.2
2015 0.188 110.2
2016 0.194 107.3
2017 0.200 104.7
2018 0.206 102.2
2019 0.212 99.8
2020 0.217 97.6
2021 0.223 95.4
2022 0.228 93.4
2023 0.233 91.4
2024 0.238 89.6
2025 0.243 87.8
2026 0.247 86.0
2027 0.252 84.4
2028 0.256 82.8
2029 0.260 81.2
2030 0.264 79.7

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