02057-2423 I   454AB

 
 
02H 05M 41.51S -24 22' 33.8" P.A. 159.3 SEP 0.64 MAG 8.62,11.32 SP G9+G9+K5V DIST. 46.64 PC (152.14 L.Y.)
 
 
Coord 2000
02057-2423
Discov num
I   454
Comp
AB
Coord arcsec 2000
02 05 41.51 -24 22 33.8
Date first
1909
Date last
2015
Obs
38
Pa first
140
Pa last
159
P.A. Now (θ)
159.3°
Sep first
1.2
Sep last
0.7
Sep. Now (ρ)
0.64"
Mag pri
8.62
Mag sec
11.32
delta mag (ΔM)
2.7
Spectral class
G9+G9+K5V (yellow/yellow)
Pri motion ra
+419
Sec motion ra
+420
Pri motion dec
-064
Sec motion dec
-057
Notes
N O (See Notes, Orbital solution)
rPM=0.017 (< 0.3, Physical double)
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
158.6
last precise sep
0.671
 
 
ORBITAL ELEMENTS
 
 
Period (P)213y± 213 Periastron (T)2057y± 43 Semi-major axis (a)1.03a± 0.66
Eccentricity (e)0.45± 0.84 Inclination (i)76°± 11 Longitude of periastron (ω)175°± 85
Node (Ω)140°± 8 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 1.043 149.6
2001 1.022 150.0
2002 1.002 150.3
2003 0.980 150.7
2004 0.959 151.1
2005 0.937 151.6
2006 0.914 152.0
2007 0.891 152.5
2008 0.868 153.0
2009 0.844 153.5
2010 0.819 154.1
2011 0.795 154.7
2012 0.769 155.3
2013 0.744 156.0
2014 0.718 156.7
2015 0.691 157.5
2016 0.664 158.3
2017 0.637 159.3
2018 0.610 160.3
2019 0.582 161.4
2020 0.554 162.6
2021 0.526 163.9
2022 0.497 165.4
2023 0.468 167.0
2024 0.440 168.9
2025 0.411 171.1
2026 0.383 173.5
2027 0.355 176.4
2028 0.327 179.7
2029 0.301 183.6
2030 0.276 188.3

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