05112-0833 GOE 1 Aa,Ab
05h 11m 14.50s -08° 33' 24.4" P.A. 8.00 sep 0.2 mag 9.50,11.50 Sp G1V dist. 409.84 pc (1336.9 l.y.)
| Coord 2000 |
05112-0833 |
|
Discov num |
GOE 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
05 11 14.50 -08 33 24.4 |
|
| Date first |
1993 |
|
Date last |
2020 |
|
Obs |
12 |
|
| Pa first |
354 |
|
Pa last |
7.7 |
|
P.A. Now (θ) |
7.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.159 |
|
Sep. Now (ρ) |
0.159" |
|
| Mag pri |
9.50 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
2 |
|
Spectral class |
G1V (yellow) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
|
|
| Pri motion dec |
-031 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
05112-0833 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
05 11 14 -08 33 24 |
GOE 1 Aa,Ab |
2020 |
12 |
8 |
0.2 |
9.50 |
11.50 |
2.00 |
Y |
<=== |
| Show |
ER Ori |
|
05 11 14 -08 33 24 |
RUC 18 AB |
2015 |
10 |
8 |
14.9 |
9.74 |
12.41 |
2.67 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
ER Ori |
|
Constellation |
Orion |
|
HIP |
24156 |
|
Tycho2 |
5330-00784-1 |
|
| Gaia DR2 |
3206917595908399232 |
|
BD |
BD-08 1050 |
|
Distance |
409.84 |
|
Distance ly |
1336.9 |
|
ORBITAL ELEMENTS
| Period (P) | 52y | |
Periastron (T) | 2007.38y | |
Semi-major axis (a) | 0.137a | |
| Eccentricity (e) | 0.77 | |
Inclination (i) | 105.2° | |
Longitude of periastron (ω) | 162.8° | |
| Node (Ω) | -2.6° | |
Notes | n | |
Reference | Tok2021c | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
352.1 |
0.139 |
| 2001 |
350.9 |
0.123 |
| 2002 |
349.2 |
0.106 |
| 2003 |
346.9 |
0.087 |
| 2004 |
343.1 |
0.065 |
| 2005 |
335.0 |
0.041 |
| 2006 |
298.2 |
0.015 |
| 2007 |
193.4 |
0.024 |
| 2008 |
168.9 |
0.032 |
| 2009 |
139.0 |
0.022 |
| 2010 |
80.3 |
0.020 |
| 2011 |
44.1 |
0.032 |
| 2012 |
30.3 |
0.049 |
| 2013 |
23.4 |
0.065 |
| 2014 |
19.3 |
0.081 |
| 2015 |
16.5 |
0.095 |
| 2016 |
14.4 |
0.109 |
| 2017 |
12.8 |
0.122 |
| 2018 |
11.4 |
0.134 |
| 2019 |
10.3 |
0.145 |
| 2020 |
9.4 |
0.156 |
| 2021 |
8.5 |
0.166 |
| 2022 |
7.8 |
0.175 |
| 2023 |
7.1 |
0.183 |
| 2024 |
6.5 |
0.191 |
| 2025 |
5.9 |
0.198 |
| 2026 |
5.3 |
0.204 |
| 2027 |
4.8 |
0.210 |
| 2028 |
4.4 |
0.215 |
| 2029 |
3.9 |
0.220 |
| 2030 |
3.4 |
0.223 |
|
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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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