11510-0520 MCA  36

 
 
11h 51m 02.23s -05 20' 00.0" P.A. 100 sep 0.1 mag 5.64, Sp K0III dist. 91.41 pc (298.18 l.y.)
 
 
Coord 2000
11510-0520
Discov num
MCA  36
Comp
Coord arcsec 2000
11 51 02.23 -05 20 00.0
Date first
1980
Date last
2006
Obs
4
Pa first
44
Pa last
100
P.A. Now (θ)
100°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
5.64
Mag sec
delta mag (ΔM)
Spectral class
K0III (yellow-orange)
Pri motion ra
+003
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
99.9
Precise sep
0.085
Constellation
Virgo
SAO
138445
HIP
57791
Tycho2
4938-00772-1
HD
102928
HR
4544
BD
BD-04 3152
Distance
91.41
Distance ly
298.18
last precise pa
99.9
last precise sep
0.085
 
 
ORBITAL ELEMENTS
 
 
Period (P)490.765d Periastron (T)51667.7d (2000.337y) Semi-major axis (a)2.4m± 0.3
Eccentricity (e)0.271 Inclination (i)75.5°± 5.4 Longitude of periastron (ω)126.4°
Node (Ω)296.5°± 4.2 Note Grade9(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000-01-01 0.003 298.1
2001-01-01 0.002 276.8
2002-01-01 0.001 142.0
2003-01-01 0.001 87.9
2004-01-01 0.003 296.4
2005-01-01 0.002 273.1
2006-01-01 0.001 136.0
2007-01-01 0.001 61.5
2008-01-01 0.003 294.8
2009-01-01 0.001 268.3
2010-01-01 0.002 131.4
2011-01-01 10.7
2012-01-01 0.003 293.3
2013-01-01 0.001 261.9
2014-01-01 0.002 127.5
2015-01-01 0.001 335.6
2016-01-01 0.003 291.7
2017-01-01 0.001 253.1
2018-01-01 0.002 124.2
2019-01-01 0.001 320.7
2020-01-01 0.003 290.1
2021-01-01 0.001 240.4
2022-01-01 0.002 121.1
2023-01-01 0.001 313.0
2024-01-01 0.003 288.5
2025-01-01 0.001 222.5
2026-01-01 0.002 118.1
2027-01-01 0.002 308.3
2028-01-01 0.002 286.7
2029-01-01 0.001 200.3
2030-01-01 0.002 114.9

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

grafico orbita





wds11510-0520f.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
11510-0520 MCA 36 2006 4 100 0.1 5.64   K0III NO 115102.23-052000.0

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