11230+0408 A 2776 AB

11h 23m 02.64s +04° 08' 17.0" P.A. 245.00 sep 0.2 mag 8.80,8.80 Sp F5 dist. 115.61 pc (377.12 l.y.)

Coord 2000 11230+0408 Discov num A  2776 Comp AB Coord arcsec 2000 11 23 02.64 +04 08 17.0
Date first 1914 Date last 2018 Obs 32
Pa first 274 Pa last 245.2 P.A. Now (θ) 245.2°
Sep first 0.2 Sep last 0.178 Sep. Now (ρ) 0.178"
Mag pri 8.80 Mag sec 8.80 delta mag (ΔM) 0 Spectral class F5 (yellow-white)
Pri motion ra -108 Sec motion ra
Pri motion dec +028 Sec motion dec
Notes O (Orbital solution)




This double is physical.



11230+0408 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 118820 11 23 03 +04 08 17 A 2776 AB 2018 32 245 0.2 8.80 8.80 0.00 Y <===
Show 118820 11 23 03 +04 08 17 A 2776 AB,C 2015 9 61 6.2 8.13 13.50 5.37


Triple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Leo SAO 118820 HIP 55574 Tycho2 0267-00813-1
Gaia DR2 3813469473202601856 HD 98914 GC 15633 ADS 8145
BD BD+04 2454 Distance 115.61 Distance ly 377.12




ORBITAL ELEMENTS

Period (P)97y Periastron (T)1998y Semi-major axis (a)0.19a
Eccentricity (e)0.942 Inclination (i)53.6° Longitude of periastron (ω)75°
Node (Ω)192° Notes ReferenceHrt2010a
Equinox2000 Last observation2009 Grade4(1=Definitive, 9=Indet.)

label theta rho
2000 31.9 0.061
2001 37.5 0.077
2002 41.3 0.090
2003 44.2 0.102
2004 46.6 0.112
2005 48.5 0.121
2006 50.2 0.130
2007 51.7 0.137
2008 53.1 0.144
2009 54.3 0.151
2010 55.4 0.157
2011 56.5 0.163
2012 57.4 0.168
2013 58.3 0.173
2014 59.2 0.178
2015 60.0 0.183
2016 60.8 0.187
2017 61.6 0.191
2018 62.3 0.195
2019 63.0 0.198
2020 63.6 0.201
2021 64.3 0.205
2022 64.9 0.207
2023 65.5 0.210
2024 66.1 0.213
2025 66.7 0.215
2026 67.3 0.217
2027 67.8 0.219
2028 68.4 0.221
2029 68.9 0.223
2030 69.5 0.225


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



 
 


wds11230%2B0408a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic