10520+1606 A 2373 (HD 94120)

 
 
10h 52m 02.94s +16° 05' 44.0" P.A. 222.00 sep 0.2 mag 8.80,8.80 Sp F5 dist. 387.6 pc (1264.35 l.y.)
 
 
Coord 2000 10520+1606 Discov num A  2373 Comp Coord arcsec 2000 10 52 02.94 +16 05 44.0
Date first 1911 Date last 2013 Obs 35
Pa first 223 Pa last 222.1 P.A. Now (θ) 211.1°
Sep first 0.2 Sep last 0.201 Sep. Now (ρ) 0.22"
Mag pri 8.80 Mag sec 8.80 delta mag (ΔM) 0 Spectral class F5 (yellow-white)
Pri motion ra -016 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 94120 Constellation Leo SAO 99331 HIP 53124
Tycho2 1429-00210-1 Gaia DR2 3981629163806653312 HD 94120 ADS 7952
BD BD+16 2180 Distance 387.6 Distance ly 1264.35
 
 
ORBITAL ELEMENTS
 
 
Period (P)100.26y Periastron (T)1980.77y Semi-major axis (a)0.172a
Eccentricity (e)0.816 Inclination (i)135.5° Longitude of periastron (ω)101.6°
Node (Ω)130.3° Notesn ReferenceUSN2007a
Equinox2000 Last observation1993 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 237.6 0.164
2001 236.0 0.168
2002 234.5 0.172
2003 233.0 0.175
2004 231.6 0.179
2005 230.3 0.182
2006 229.0 0.185
2007 227.7 0.188
2008 226.5 0.191
2009 225.3 0.193
2010 224.1 0.196
2011 223.0 0.198
2012 221.9 0.201
2013 220.8 0.203
2014 219.8 0.205
2015 218.7 0.207
2016 217.7 0.209
2017 216.8 0.211
2018 215.8 0.213
2019 214.8 0.215
2020 213.9 0.216
2021 212.9 0.218
2022 212.0 0.219
2023 211.1 0.220
2024 210.2 0.222
2025 209.3 0.223
2026 208.5 0.224
2027 207.6 0.225
2028 206.7 0.225
2029 205.9 0.226
2030 205.0 0.227


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



 
 


wds10520%2B1606a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic