02057-2423 WSI  71Aa,Ab

 
 
02H 05M 41.51S -24 22' 33.8" P.A. 285 SEP 0.1 MAG 9.27,9.50 SP G9V+G9V DIST. 46.64 PC (152.14 L.Y.)
 
 
Coord 2000
02057-2423
Discov num
WSI  71
Comp
Aa,Ab
Coord arcsec 2000
02 05 41.51 -24 22 33.8
Date first
2008
Date last
2015
Obs
17
Pa first
143
Pa last
285
P.A. Now (θ)
285°
Sep first
0.0
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
9.27
Mag sec
9.50
delta mag (ΔM)
0.23
Spectral class
G9V+G9V (yellow/yellow)
Pri motion ra
+419
Sec motion ra
Pri motion dec
-064
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
02057-2423 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 167545 02057-2423 WSI 71 Aa,Ab 2008 2015 17 285 0.1 9.27 9.50 0.23 Y <===
Show 167545 02057-2423 I 454 AB 1909 2015 38 159 0.6 8.62 11.32 2.70 Y
Show 167545 02057-2423 I 454 AB,C 1897 2014 17 258 56.9 8.62 8.96 0.34
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Fornax
SAO
167545
HIP
9774
Tycho2
6430-00057-1
HD
12889
ADS
1652
CD
CD-24 891
CP
CP-24 237
Distance
46.64
Distance ly
152.14
last precise pa
285.2
last precise sep
0.051
 
 
ORBITAL ELEMENTS
 
 
Period (P)2.582y± 0.003 Periastron (T)2010.917y± 0.015 Semi-major axis (a)0.048a± 0.003
Eccentricity (e)0.769± 0.015 Inclination (i)75.9°± 4 Longitude of periastron (ω)287.9°± 1.5
Node (Ω)127.2°± 4.6 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.046 291.7
2001 0.019 168.5
2002 0.036 275.2
2003 0.031 304.4
2004 0.019 232.8
2005 0.045 287.8
2006 0.022 149.6
2007 0.031 268.0
2008 0.041 298.3
2009 0.017 208.0
2010 0.042 283.5
2011 0.019 131.7
2012 0.026 258.1
2013 0.045 293.9
2014 0.018 181.3
2015 0.039 278.5
2016 0.018 312.0
2017 0.022 243.5
2018 0.046 290.0
2019 0.021 159.4
2020 0.034 272.2
2021 0.037 301.2
2022 0.018 222.3
2023 0.044 285.9
2024 0.022 142.0
2025 0.029 264.0
2026 0.044 296.2
2027 0.017 195.7
2028 0.041 281.3
2029 0.007 106.5
2030 0.024 252.2

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