03244-1539 A 2909 AB
03h 24m 24.73s -15° 39' 13.8" P.A. 140.00 sep 0.0 mag 8.40,8.40 Sp G1/2V dist. 49.33 pc (160.91 l.y.)
| Coord 2000 |
03244-1539 |
|
Discov num |
A 2909 |
|
Comp |
AB |
|
Coord arcsec 2000 |
03 24 24.73 -15 39 13.8 |
|
| Date first |
1918 |
|
Date last |
2013 |
|
Obs |
8 |
|
| Pa first |
163 |
|
Pa last |
140.2 |
|
P.A. Now (θ) |
188.9° |
|
| Sep first |
0.1 |
|
Sep last |
0.032 |
|
Sep. Now (ρ) |
0.168" |
|
| Mag pri |
8.40 |
|
Mag sec |
8.40 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
G1/2V (yellow) |
|
| Pri motion ra |
+223 |
|
Sec motion ra |
|
|
| Pri motion dec |
-103 |
|
Sec motion dec |
|
|
| Notes |
N
X
O
(See Notes, Dubious double, Orbital solution) |
|
This double is physical.
03244-1539 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
148944 |
03 24 25 -15 39 14 |
A 2909 AB |
2013 |
8 |
140 |
0.0 |
8.40 |
8.40 |
0.00 |
Y |
<=== |
| Show |
|
148944 |
03 24 25 -15 39 14 |
A 2909 AB,C |
2016 |
8 |
254 |
17.0 |
7.51 |
12.70 |
5.19 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Eridanus |
|
SAO |
148944 |
|
HIP |
15868 |
|
Tycho2 |
5873-00924-1 |
|
| Gaia DR2 |
5106746699407201408 |
|
HD |
21161 |
|
GC |
4068 |
|
ADS |
2524 |
|
| BD |
BD-16 630 |
|
Distance |
49.33 |
|
Distance ly |
160.91 |
|
ORBITAL ELEMENTS
| Period (P) | 11.35y | ± 0.26 |
Periastron (T) | 2013.74y | ± 0.05 |
Semi-major axis (a) | 0.172a | ± 0.003 |
| Eccentricity (e) | 0.507 | ± 0.015 |
Inclination (i) | 71.3° | ± 1 |
Longitude of periastron (ω) | 283° | ± 1 |
| Node (Ω) | 16.2° | ± 0.5 |
Notes | n | |
Reference | Doc2016d | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
186.2 |
0.172 |
| 2001 |
196.1 |
0.145 |
| 2002 |
226.9 |
0.051 |
| 2003 |
10.7 |
0.098 |
| 2004 |
28.4 |
0.132 |
| 2005 |
44.7 |
0.117 |
| 2006 |
69.1 |
0.091 |
| 2007 |
106.1 |
0.081 |
| 2008 |
140.2 |
0.098 |
| 2009 |
161.0 |
0.129 |
| 2010 |
173.7 |
0.157 |
| 2011 |
183.1 |
0.172 |
| 2012 |
192.2 |
0.160 |
| 2013 |
208.1 |
0.093 |
| 2014 |
356.2 |
0.062 |
| 2015 |
23.2 |
0.129 |
| 2016 |
38.5 |
0.125 |
| 2017 |
59.1 |
0.100 |
| 2018 |
92.2 |
0.081 |
| 2019 |
129.8 |
0.089 |
| 2020 |
154.9 |
0.117 |
| 2021 |
169.8 |
0.148 |
| 2022 |
180.0 |
0.169 |
| 2023 |
188.9 |
0.168 |
| 2024 |
200.4 |
0.125 |
| 2025 |
295.2 |
0.028 |
| 2026 |
17.3 |
0.118 |
| 2027 |
32.9 |
0.131 |
| 2028 |
50.8 |
0.109 |
| 2029 |
79.1 |
0.086 |
| 2030 |
117.6 |
0.083 |
|
|
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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