13123-5955 SEE 170 AB
13h 12m 17.63s -59° 55' 13.9" P.A. 254.00 sep 0.0 mag 5.30,6.00 Sp B8V dist. 116.14 pc (378.85 l.y.)
Coord 2000 |
13123-5955 |
|
Discov num |
SEE 170 |
|
Comp |
AB |
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Coord arcsec 2000 |
13 12 17.63 -59 55 13.9 |
|
Date first |
1897 |
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Date last |
2021 |
|
Obs |
50 |
|
Pa first |
96 |
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Pa last |
254.1 |
|
P.A. Now (θ) |
248.9° |
|
Sep first |
0.3 |
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Sep last |
0.049 |
|
Sep. Now (ρ) |
0.101" |
|
Mag pri |
5.30 |
|
Mag sec |
6.00 |
|
delta mag (ΔM) |
0.7 |
|
Spectral class |
B8V (blue-white) |
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Pri motion ra |
-025 |
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Sec motion ra |
|
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Pri motion dec |
-006 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
13123-5955 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
240645 |
13 12 18 -59 55 14 |
SEE 170 AB |
2021 |
50 |
254 |
0.0 |
5.30 |
6.00 |
0.70 |
Y |
<=== |
Show |
V831 Cen |
240645 |
13 12 18 -59 55 14 |
I 424 AB,C |
2021 |
35 |
15 |
1.9 |
4.55 |
8.40 |
3.85 |
|
|
Show |
|
240645 |
13 12 18 -59 55 14 |
HDO 223 AB,D |
2015 |
7 |
259 |
46.6 |
4.55 |
11.98 |
7.43 |
|
|
Show |
|
240645 |
13 12 18 -59 55 14 |
I 424 AB,E |
2015 |
4 |
24 |
53.8 |
4.55 |
14.90 |
10.35 |
|
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Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
V831 Cen |
|
Constellation |
Centaurus |
|
SAO |
240645 |
|
HIP |
64425 |
|
Tycho2 |
8661-02284-1 |
|
Gaia DR2 |
6061917808001384192 |
|
HD |
114529 |
|
HR |
4975 |
|
GC |
17866 |
|
CP |
CP-59 4815 |
|
Distance |
116.14 |
|
Distance ly |
378.85 |
|
ORBITAL ELEMENTS
Period (P) | 27.53y | ± 0.2 |
Periastron (T) | 2026.82y | ± 0.15 |
Semi-major axis (a) | 0.226a | ± 0.01 |
Eccentricity (e) | 0.593 | ± 0.015 |
Inclination (i) | 75.2° | ± 3 |
Longitude of periastron (ω) | 235.9° | ± 3 |
Node (Ω) | 97.9° | ± 3 |
Notes | n | |
Reference | Doc2021d | |
Equinox | | |
Last observation | 2019 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
36.8 |
0.029 |
2001 |
84.9 |
0.103 |
2002 |
92.8 |
0.164 |
2003 |
96.8 |
0.207 |
2004 |
99.6 |
0.237 |
2005 |
101.8 |
0.257 |
2006 |
103.8 |
0.269 |
2007 |
105.6 |
0.274 |
2008 |
107.5 |
0.274 |
2009 |
109.3 |
0.270 |
2010 |
111.3 |
0.261 |
2011 |
113.4 |
0.249 |
2012 |
115.7 |
0.234 |
2013 |
118.4 |
0.217 |
2014 |
121.6 |
0.197 |
2015 |
125.6 |
0.175 |
2016 |
130.7 |
0.152 |
2017 |
137.7 |
0.129 |
2018 |
147.7 |
0.106 |
2019 |
162.7 |
0.087 |
2020 |
184.4 |
0.074 |
2021 |
210.2 |
0.074 |
2022 |
232.8 |
0.084 |
2023 |
248.9 |
0.101 |
2024 |
260.4 |
0.117 |
2025 |
269.8 |
0.123 |
2026 |
280.0 |
0.104 |
2027 |
309.3 |
0.042 |
2028 |
73.7 |
0.063 |
2029 |
89.5 |
0.134 |
2030 |
94.9 |
0.186 |
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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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