01316-5322 I   264AB

 
 
01H 31M 35.29S -53 22' 10.1" P.A. 27.7 SEP 0.89 MAG 8.36,8.84 SP F5 DIST. 101.52 PC (331.16 L.Y.)
 
 
Coord 2000
01316-5322
Discov num
I   264
Comp
AB
Coord arcsec 2000
01 31 35.29 -53 22 10.1
Date first
1898
Date last
2013
Obs
43
Pa first
130
Pa last
29
P.A. Now (θ)
27.7°
Sep first
0.5
Sep last
0.8
Sep. Now (ρ)
0.89"
Mag pri
8.36
Mag sec
8.84
delta mag (ΔM)
0.48
Spectral class
F5 (yellow-white)
Pri motion ra
+084
Sec motion ra
+084
Pri motion dec
+030
Sec motion dec
+030
Notes
O (Orbital solution)
This double is physical.
 
 
01316-5322 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 232450 01316-5322 I 264 AB 1898 2013 43 28 0.9 8.36 8.84 0.48 Y <===
Show 232450 01316-5322 HJ 3444 AB,C 1836 2000 9 7 39.0 8.01 11.20 3.19
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
SAO
232450
HIP
7111
Tycho2
8475-01039-1
HD
9438
CP
CP-54 342
Distance
101.52
Distance ly
331.16
last precise pa
29
last precise sep
0.78
 
 
ORBITAL ELEMENTS
 
 
Period (P)250y Periastron (T)1889.5y Semi-major axis (a)1.46a
Eccentricity (e)0.892 Inclination (i)107.4° Longitude of periastron (ω)276.9°
Node (Ω)141° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.841 37.1
2001 0.844 36.5
2002 0.847 35.9
2003 0.850 35.3
2004 0.853 34.7
2005 0.856 34.2
2006 0.859 33.6
2007 0.862 33.0
2008 0.865 32.5
2009 0.868 31.9
2010 0.871 31.4
2011 0.874 30.8
2012 0.877 30.3
2013 0.880 29.8
2014 0.883 29.2
2015 0.886 28.7
2016 0.889 28.2
2017 0.892 27.7
2018 0.895 27.1
2019 0.898 26.6
2020 0.901 26.1
2021 0.904 25.6
2022 0.907 25.1
2023 0.910 24.6
2024 0.912 24.1
2025 0.915 23.6
2026 0.918 23.1
2027 0.921 22.6
2028 0.924 22.1
2029 0.927 21.6
2030 0.929 21.2

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