09474+1134 MCA  34AB (19 Leo)

 
 
09h 47m 25.99s +11 34' 05.4" P.A. 324.80 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
2019
Obs
53
Pa first
357
Pa last
208
P.A. Now (θ)
324.8°
Sep first
0.0
Sep last
0.1
Sep. Now (ρ)
0.03"
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 2019 53 325 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 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
207.7
Precise sep
0.063
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
last precise pa
207.7
last precise sep
0.063
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.204y Periastron (T)1973.488y Semi-major axis (a)0.111a
Eccentricity (e)0.31 Inclination (i)76.2° Longitude of periastron (ω)20.8°
Node (Ω)203.4° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.042 66.1
2001 0.028 138.2
2002 0.055 183.5
2003 0.077 198.5
2004 0.070 210.0
2005 0.034 236.7
2006 0.033 340.7
2007 0.075 7.6
2008 0.109 15.5
2009 0.131 20.1
2010 0.142 23.6
2011 0.141 26.9
2012 0.130 30.4
2013 0.109 35.1
2014 0.081 42.4
2015 0.048 59.3
2016 0.027 120.3
2017 0.049 178.5
2018 0.074 196.1
2019 0.074 207.3
2020 0.042 227.3
2021 0.026 324.8
2022 0.066 4.8
2023 0.103 14.3
2024 0.128 19.3
2025 0.140 22.9
2026 0.142 26.2
2027 0.133 29.7
2028 0.114 34.0
2029 0.087 40.5
2030 0.055 54.2


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



 
 


wds09474%2B1134c.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
09474+1134 MCA 34 AB 2018 49 205 0.1 6.40 6.90 A7V NO 094725.99+113405.4
09474+1134 MCA 34 AB 2019 53 208 0.1 6.40 6.90 A7V NO 094725.99+113405.4

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