11510-0520 MCA 36 (HD 102928)

11h 51m 02.23s -05° 20' 00.0" P.A. 100.00 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 99.9 P.A. Now (θ) 99.9°
Sep first 0.2 Sep last 0.085 Sep. Now (ρ) 0.085"
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

Name HD 102928 Constellation Virgo SAO 138445 HIP 57791
Tycho2 4938-00772-1 Gaia DR2 3598849442025007104 HD 102928 HR 4544
GC 16220 BD BD-04 3152 FK5 1306 Distance 91.41
Distance ly 298.18




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 Notesn ReferenceRen2013
Equinox2000 Last observation Grade9(1=Definitive, 9=Indet.)

label theta rho
2000-01-01 298.1 0.003
2001-01-01 276.8 0.002
2002-01-01 142.0 0.001
2003-01-01 87.9 0.001
2004-01-01 296.4 0.003
2005-01-01 273.1 0.002
2006-01-01 136.0 0.001
2007-01-01 61.5 0.001
2008-01-01 294.8 0.003
2009-01-01 268.3 0.001
2010-01-01 131.4 0.002
2011-01-01 10.7
2012-01-01 293.3 0.003
2013-01-01 261.9 0.001
2014-01-01 127.5 0.002
2015-01-01 335.6 0.001
2016-01-01 291.7 0.003
2017-01-01 253.1 0.001
2018-01-01 124.2 0.002
2019-01-01 320.7 0.001
2020-01-01 290.1 0.003
2021-01-01 240.4 0.001
2022-01-01 121.1 0.002
2023-01-01 313.0 0.001
2024-01-01 288.5 0.003
2025-01-01 222.5 0.001
2026-01-01 118.1 0.002
2027-01-01 308.3 0.002
2028-01-01 286.7 0.002
2029-01-01 200.3 0.001
2030-01-01 114.9 0.002


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



 
 


wds11510-0520f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic