11514+1148 HDS1672

 
 
11H 51M 24.85S +11 48' 18.6" P.A. 122.5 SEP 0.32 MAG 7.18,10.92 SP F6V DIST. 52.69 PC (171.87 L.Y.)
 
 
Coord 2000
11514+1148
Discov num
HDS1672
Comp
Coord arcsec 2000
11 51 24.85 +11 48 18.6
Date first
1991
Date last
2014
Obs
9
Pa first
183
Pa last
102
P.A. Now (θ)
122.5°
Sep first
0.4
Sep last
0.2
Sep. Now (ρ)
0.32"
Mag pri
7.18
Mag sec
10.92
delta mag (ΔM)
3.74
Spectral class
F6V (yellow-white)
Pri motion ra
-221
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
SAO
99829
HIP
57821
Tycho2
0867-00523-1
HD
102988
BD
BD+12 2388
Distance
52.69
Distance ly
171.87
last precise pa
102.3
last precise sep
0.234
 
 
ORBITAL ELEMENTS
 
 
Period (P)53.79y± 11.28 Periastron (T)2007.07y± 0.31 Semi-major axis (a)0.361a± 0.045
Eccentricity (e)0.659± 0.053 Inclination (i)47°± 3.4 Longitude of periastron (ω)156.9°± 8
Node (Ω)175.3°± 6.9 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.317 196.5
2001 0.280 201.5
2002 0.239 208.2
2003 0.196 217.7
2004 0.152 232.8
2005 0.116 258.7
2006 0.102 298.4
2007 0.117 336.8
2008 0.132 5.5
2009 0.140 29.6
2010 0.150 51.0
2011 0.165 69.3
2012 0.185 84.0
2013 0.210 95.5
2014 0.236 104.5
2015 0.263 111.8
2016 0.290 117.6
2017 0.316 122.5
2018 0.341 126.7
2019 0.365 130.2
2020 0.389 133.4
2021 0.410 136.2
2022 0.431 138.7
2023 0.450 141.0
2024 0.468 143.2
2025 0.485 145.1
2026 0.500 147.0
2027 0.514 148.7
2028 0.526 150.4
2029 0.538 152.0
2030 0.548 153.5

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