11265+0806 A 2575 (HD 99420)

 
 
11h 26m 30.78s +08° 05' 41.0" P.A. 49.00 sep 0.4 mag 10.10,10.10 Sp F0
 
 
Coord 2000 11265+0806 Discov num A  2575 Comp Coord arcsec 2000 11 26 30.78 +08 05 41.0
Date first 1913 Date last 2013 Obs 20
Pa first 329 Pa last 49 P.A. Now (θ) 49°
Sep first 0.4 Sep last 0.418 Sep. Now (ρ) 0.418"
Mag pri 10.10 Mag sec 10.10 delta mag (ΔM) 0 Spectral class F0 (yellow-white)
Pri motion ra +005 Sec motion ra
Pri motion dec +005 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 99420 Constellation Leo SAO 118861 Tycho2 0856-00252-1
Gaia DR2 3913748163470735616 HD 99420 ADS 8160
 
 
ORBITAL ELEMENTS
 
 
Period (P)230y Periastron (T)2080y Semi-major axis (a)0.43a
Eccentricity (e)0.596 Inclination (i)67° Longitude of periastron (ω)75.2°
Node (Ω)128.6° Notes ReferenceUSN2002
Equinox2000 Last observation1995 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 47.0 0.252
2001 48.4 0.252
2002 49.9 0.252
2003 51.3 0.252
2004 52.7 0.252
2005 54.1 0.252
2006 55.6 0.252
2007 57.0 0.253
2008 58.4 0.253
2009 59.8 0.254
2010 61.2 0.254
2011 62.6 0.255
2012 64.0 0.256
2013 65.4 0.257
2014 66.8 0.257
2015 68.2 0.259
2016 69.5 0.260
2017 70.9 0.261
2018 72.2 0.262
2019 73.5 0.263
2020 74.8 0.265
2021 76.1 0.266
2022 77.4 0.267
2023 78.6 0.269
2024 79.9 0.270
2025 81.1 0.272
2026 82.3 0.273
2027 83.6 0.275
2028 84.7 0.277
2029 85.9 0.278
2030 87.1 0.280


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



 
 


wds11265%2B0806a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic