09474+1134 MCA 34 AB (19 Leo)

 
 
09h 47m 25.99s +11 34' 05.4" P.A. 341.00 sep 0.0 mag 6.40,6.90 Sp A7V dist. 84.67 pc (276.19 l.y.)
 
 
Coord 2000 09474+1134 Discov num MCA  34 Comp AB Coord arcsec 2000 09 47 25.99 +11 34 05.4
Date first 1975 Date last 2021 Obs 54
Pa first 357 Pa last 341.1 P.A. Now (θ) 14.5°
Sep first 0.0 Sep last 0.03 Sep. Now (ρ) 0.104"
Mag pri 6.40 Mag sec 6.90 delta mag (ΔM) 0.5 Spectral class A7V (white)
Pri motion ra -050 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
09474+1134 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19 Leo 98767 09 47 26 +11 34 05 MCA 34 AB 2021 54 341 0.0 6.40 6.90 0.50 Y <===
Show 98767 09 47 26 +11 34 05 RBR 39 AC 2004 1 229 1.6 6.40 15.00 8.60
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 19 Leo Constellation Leo SAO 98767 HIP 48029
Tycho2 0831-00841-1 Gaia DR2 613339647904722432 HD 84722 HR 3880
GC 13485 BD BD+12 2095 Flamsteed 19 Leonis Flamsteed name 19 Leo
Distance 84.67 Distance ly 276.19
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.119y± 0.018 Periastron (T)2019.163y± 0.094 Semi-major axis (a)0.111a± 0.001
Eccentricity (e)0.313± 0.006 Inclination (i)76.3°± 0.5 Longitude of periastron (ω)22.6°± 2.7
Node (Ω)203.1°± 0.5 Notesn ReferenceMsn2021b
Equinox Last observation2021 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 62.5 0.045
2001 129.4 0.027
2002 180.8 0.052
2003 196.9 0.075
2004 208.2 0.072
2005 231.5 0.037
2006 336.4 0.030
2007 6.9 0.072
2008 15.2 0.108
2009 19.8 0.130
2010 23.4 0.141
2011 26.6 0.141
2012 30.2 0.130
2013 34.8 0.109
2014 42.2 0.081
2015 58.9 0.048
2016 118.7 0.027
2017 177.6 0.048
2018 195.5 0.074
2019 206.7 0.074
2020 226.5 0.042
2021 326.3 0.026
2022 5.3 0.068
2023 14.5 0.104
2024 19.4 0.128
2025 23.0 0.141
2026 26.3 0.141
2027 29.8 0.131
2028 34.2 0.112
2029 41.0 0.085
2030 55.8 0.052


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



 
 


wds09474%2B1134e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic