02452-4344 BRG 15 Aa,Ab
02h 45m 14.31s -43° 44' 10.2" P.A. 37.00 sep 0.4 mag 10.10,10.90 Sp M4.0+M4.5
Coord 2000 |
02452-4344 |
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Discov num |
BRG 15 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
02 45 14.31 -43 44 10.2 |
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Date first |
2008 |
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Date last |
2021 |
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Obs |
11 |
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Pa first |
214 |
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Pa last |
36.8 |
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P.A. Now (θ) |
36.8° |
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Sep first |
0.3 |
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Sep last |
0.396 |
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Sep. Now (ρ) |
0.396" |
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Mag pri |
10.10 |
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Mag sec |
10.90 |
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delta mag (ΔM) |
0.8 |
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Spectral class |
M4.0+M4.5 (red/red) |
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Pri motion ra |
+084 |
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Sec motion ra |
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Pri motion dec |
-410 |
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Sec motion dec |
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Notes |
N
O
R
(See Notes, Orbital solution, Red magnitudes) |
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This double is physical.
02452-4344 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
02 45 14 -43 44 10 |
BRG 15 Aa,Ab |
2021 |
11 |
37 |
0.4 |
10.10 |
10.90 |
0.80 |
Y |
<=== |
Show |
|
|
02 45 14 -43 44 10 |
CPO 29 AB |
2010 |
8 |
241 |
44.7 |
12.65 |
12.34 |
0.31 |
|
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Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
Period (P) | 28.3y | ± 2.9 |
Periastron (T) | 2009.66y | ± 0.76 |
Semi-major axis (a) | 0.626a | ± 0.057 |
Eccentricity (e) | 0.238 | ± 0.026 |
Inclination (i) | 117.3° | ± 1.8 |
Longitude of periastron (ω) | 304° | ± 13.9 |
Node (Ω) | 158.8° | ± 1.3 |
Notes | n | |
Reference | Tok2021c | |
Equinox | 2000 | |
Last observation | 2021 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
347.4 |
0.699 |
2001 |
342.9 |
0.698 |
2002 |
338.2 |
0.677 |
2003 |
333.0 |
0.635 |
2004 |
327.0 |
0.571 |
2005 |
319.0 |
0.485 |
2006 |
307.1 |
0.384 |
2007 |
286.5 |
0.283 |
2008 |
249.9 |
0.226 |
2009 |
210.4 |
0.264 |
2010 |
186.4 |
0.355 |
2011 |
172.5 |
0.444 |
2012 |
162.7 |
0.505 |
2013 |
154.5 |
0.532 |
2014 |
146.6 |
0.527 |
2015 |
138.2 |
0.499 |
2016 |
128.5 |
0.456 |
2017 |
116.5 |
0.407 |
2018 |
101.4 |
0.364 |
2019 |
83.2 |
0.339 |
2020 |
63.7 |
0.341 |
2021 |
45.9 |
0.370 |
2022 |
31.4 |
0.418 |
2023 |
20.2 |
0.476 |
2024 |
11.5 |
0.535 |
2025 |
4.5 |
0.591 |
2026 |
358.6 |
0.638 |
2027 |
353.5 |
0.674 |
2028 |
348.8 |
0.695 |
2029 |
344.2 |
0.700 |
2030 |
339.6 |
0.686 |
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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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