09498+2111 KUI 44 AB

 
 
09h 49m 50.12s +21° 10' 46.0" P.A. 227.00 sep 0.2 mag 6.62,7.31 Sp A7IVn dist. 191.57 pc (624.9 l.y.)
 
 
Coord 2000 09498+2111 Discov num KUI  44 Comp AB Coord arcsec 2000 09 49 50.12 +21 10 46.0
Date first 1935 Date last 2016 Obs 87
Pa first 222 Pa last 227 P.A. Now (θ) 224.6°
Sep first 0.3 Sep last 0.172 Sep. Now (ρ) 0.216"
Mag pri 6.62 Mag sec 7.31 delta mag (ΔM) 0.69 Spectral class A7IVn (white)
Pri motion ra -043 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
09498+2111 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 81035 09 49 50 +21 10 46 KUI 44 AB 2016 87 227 0.2 6.62 7.31 0.69 Y <===
Show DG Leo 81035 09 49 50 +21 10 46 FYM 626 AB,C 2017 5 13 12.4 6.16 14.80 8.64
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name DG Leo Constellation Leo SAO 81035 HIP 48218
Tycho2 1417-01531-1 Gaia DR2 640100210441202048 HD 85040 HR 3889
GC 13528 BD BD+21 2113 Flamsteed 20 Leonis Flamsteed name 20 Leo
FK5 2785 Distance 191.57 Distance ly 624.9
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier09498+2111 KUI 44
coord_arcsec_2000094950.12+211046.0
Period (P)113.1y± 3.4 Periastron (T)2000.31y± 0.29 Semi-major axis (a)0.208a± 0.006
Eccentricity (e)0.887± 0.008 Inclination (i)107.5°± 0.9 Longitude of periastron (ω)332°± 4.1
Node (Ω)27.9°± 1.3 Notesn ReferenceTam2006b
Equinox2000 Last observation2004 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 57.1 0.014
2001 15.6 0.026
2002 342.9 0.022
2003 300.8 0.022
2004 272.2 0.031
2005 257.4 0.042
2006 249.1 0.054
2007 243.8 0.067
2008 240.2 0.079
2009 237.5 0.090
2010 235.4 0.101
2011 233.7 0.112
2012 232.3 0.122
2013 231.1 0.132
2014 230.1 0.142
2015 229.2 0.151
2016 228.4 0.161
2017 227.7 0.169
2018 227.1 0.178
2019 226.5 0.186
2020 226.0 0.194
2021 225.5 0.202
2022 225.0 0.209
2023 224.6 0.216
2024 224.2 0.223
2025 223.8 0.230
2026 223.5 0.237
2027 223.2 0.243
2028 222.8 0.249
2029 222.5 0.255
2030 222.2 0.261


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



 
 


wds09498%2B2111c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic