15332-2429 CHR 232Aa,Ab

 
 
15H 33M 09.52S -24 29' 25.6" P.A. 230.3 SEP 0.09 MAG 7.20,8.80 SP A7+F8 DIST. 96.71 PC (315.47 L.Y.)
 
 
Coord 2000
15332-2429
Discov num
CHR 232
Comp
Aa,Ab
Coord arcsec 2000
15 33 09.52 -24 29 25.6
Date first
1996
Date last
2015
Obs
8
Pa first
178
Pa last
278
P.A. Now (θ)
230.3°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.09"
Mag pri
7.20
Mag sec
8.80
delta mag (ΔM)
1.6
Spectral class
A7+F8 (white/yellow-white)
Pri motion ra
-030
Sec motion ra
Pri motion dec
-037
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
15332-2429 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 183565 15332-2429 CHR 232 Aa,Ab 1996 2015 8 230 0.1 7.20 8.80 1.60 Y <===
Show 183565 15332-2429 LAL 123 AB 1825 2016 47 302 9.3 6.94 7.00 0.06
Show 183565 15332-2429 SEE 238 Ba,Bb 1897 2015 52 138 0.3 7.00 8.26 1.26 Y
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Libra
SAO
183565
HIP
76143
Tycho2
6768-01536-1
HD
138488
HR
5765
ADS
9689
CD
CD-2412155
Distance
96.71
Distance ly
315.47
last precise pa
277.6
last precise sep
0.061
 
 
ORBITAL ELEMENTS
 
 
Period (P)16.468y± 0.194 Periastron (T)2011.536y± 0.064 Semi-major axis (a)0.0933a± 0.0019
Eccentricity (e)0.419± 0.009 Inclination (i)123.9°± 0.9 Longitude of periastron (ω)321.6°± 2.6
Node (Ω)10.4°± 1.9 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.071 252.9
2001 0.085 236.8
2002 0.099 225.3
2003 0.111 216.6
2004 0.119 209.3
2005 0.122 202.7
2006 0.121 196.2
2007 0.113 189.2
2008 0.098 180.5
2009 0.074 167.4
2010 0.045 138.8
2011 0.036 65.9
2012 0.055 17.0
2013 0.060 349.5
2014 0.056 321.2
2015 0.056 290.0
2016 0.065 262.8
2017 0.078 243.6
2018 0.093 230.3
2019 0.106 220.4
2020 0.115 212.6
2021 0.121 205.7
2022 0.122 199.2
2023 0.117 192.6
2024 0.106 184.9
2025 0.086 174.5
2026 0.059 155.7
2027 0.034 104.6
2028 0.046 34.4
2029 0.060 1.8
2030 0.058 335.0

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic