09474+1134 MCA  34AB (19 Leo)

 
 
09h 47m 25.99s +11 34' 05.4" P.A. 188 sep 0.1 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
2017
Obs
47
Pa first
177
Pa last
188
P.A. Now (θ)
188°
Sep first
0.0
Sep last
0.1
Sep. Now (ρ)
0.1"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19 Leo 98767 09474+1134 MCA 34 AB 1975 2017 47 188 0.1 6.40 6.90 0.50 Y <===
Show 98767 09474+1134 RBR 39 AC 2004 2004 1 229 1.6 6.40 15.00 8.60
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
187.6
Precise sep
0.06
Name
19 Leo
Constellation
Leo
SAO
98767
HIP
48029
Tycho2
0831-00841-1
HD
84722
HR
3880
GC
13485
BD
BD+12 2095
Flamsteed
19 Leonis
Flamsteed name
19 Leo
Distance
84.67
Distance ly
276.19
last precise pa
187.6
last precise sep
0.06
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.28y Periastron (T)1973.55y Semi-major axis (a)0.111a
Eccentricity (e)0.318 Inclination (i)75.9° Longitude of periastron (ω)23.9°
Node (Ω)203° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2007
label rho theta
2000 0.045 64.0
2001 0.028 128.8
2002 0.052 179.5
2003 0.075 196.2
2004 0.072 207.7
2005 0.038 230.5
2006 0.029 333.6
2007 0.071 6.2
2008 0.107 14.8
2009 0.130 19.6
2010 0.141 23.2
2011 0.141 26.5
2012 0.131 30.1
2013 0.112 34.6
2014 0.085 41.6
2015 0.054 56.2
2016 0.028 104.9
2017 0.044 171.2
2018 0.070 192.6
2019 0.076 204.3
2020 0.050 220.7
2021 0.022 303.6
2022 0.060 1.8
2023 0.098 13.0
2024 0.125 18.4
2025 0.139 22.2
2026 0.142 25.6
2027 0.135 29.1
2028 0.118 33.2
2029 0.093 39.2
2030 0.063 50.6

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

grafico orbita





wds09474%2B1134b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09474+1134 MCA 34 AB 2017 47 188 0.1 6.40 6.90 A7V NO 094725.99+113405.4

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