01316-5322 I 264 AB
01h 31m 35.29s -53° 22' 10.1" P.A. 24.00 sep 0.8 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 |
2021 |
|
Obs |
47 |
|
| Pa first |
130 |
|
Pa last |
23.6 |
|
P.A. Now (θ) |
23.6° |
|
| Sep first |
0.5 |
|
Sep last |
0.79 |
|
Sep. Now (ρ) |
0.79" |
|
| 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 |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
232450 |
01 31 35 -53 22 10 |
I 264 AB |
2021 |
47 |
24 |
0.8 |
8.36 |
8.84 |
0.48 |
Y |
<=== |
| Show |
HD 9438 |
232450 |
01 31 35 -53 22 10 |
HJ 3444 AB,C |
2000 |
9 |
7 |
39.0 |
8.01 |
11.20 |
3.19 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Eridanus |
|
SAO |
232450 |
|
HIP |
7111 |
|
Tycho2 |
8475-01039-1 |
|
| Gaia DR2 |
4915790460562750720 |
|
HD |
9438 |
|
GC |
1860 |
|
CP |
CP-54 342 |
|
| Distance |
101.52 |
|
Distance ly |
331.16 |
|
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° | |
Notes | | |
Reference | USN2002 | |
| Equinox | 2000 | |
Last observation | 1995 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
37.1 |
0.841 |
| 2001 |
36.5 |
0.844 |
| 2002 |
35.9 |
0.847 |
| 2003 |
35.3 |
0.850 |
| 2004 |
34.7 |
0.853 |
| 2005 |
34.2 |
0.856 |
| 2006 |
33.6 |
0.859 |
| 2007 |
33.0 |
0.862 |
| 2008 |
32.5 |
0.865 |
| 2009 |
31.9 |
0.868 |
| 2010 |
31.4 |
0.871 |
| 2011 |
30.8 |
0.874 |
| 2012 |
30.3 |
0.877 |
| 2013 |
29.8 |
0.880 |
| 2014 |
29.2 |
0.883 |
| 2015 |
28.7 |
0.886 |
| 2016 |
28.2 |
0.889 |
| 2017 |
27.7 |
0.892 |
| 2018 |
27.1 |
0.895 |
| 2019 |
26.6 |
0.898 |
| 2020 |
26.1 |
0.901 |
| 2021 |
25.6 |
0.904 |
| 2022 |
25.1 |
0.907 |
| 2023 |
24.6 |
0.910 |
| 2024 |
24.1 |
0.912 |
| 2025 |
23.6 |
0.915 |
| 2026 |
23.1 |
0.918 |
| 2027 |
22.6 |
0.921 |
| 2028 |
22.1 |
0.924 |
| 2029 |
21.6 |
0.927 |
| 2030 |
21.2 |
0.929 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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