02057-2423 WSI 71 Aa,Ab
02h 05m 41.51s -24° 22' 33.8" P.A. 214.00 sep 0.0 mag 9.27,9.50 Sp G9V+G9V dist. 46.64 pc (152.14 l.y.)
Coord 2000 |
02057-2423 |
|
Discov num |
WSI 71 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
02 05 41.51 -24 22 33.8 |
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Date first |
2008 |
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Date last |
2021 |
|
Obs |
23 |
|
Pa first |
143 |
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Pa last |
213.7 |
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P.A. Now (θ) |
213.7° |
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Sep first |
0.0 |
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Sep last |
0.025 |
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Sep. Now (ρ) |
0.025" |
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Mag pri |
9.27 |
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Mag sec |
9.50 |
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delta mag (ΔM) |
0.23 |
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Spectral class |
G9V+G9V (yellow/yellow) |
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Pri motion ra |
+419 |
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Sec motion ra |
|
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Pri motion dec |
-064 |
|
Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
02057-2423 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
167545 |
02 05 42 -24 22 34 |
WSI 71 Aa,Ab |
2021 |
23 |
214 |
0.0 |
9.27 |
9.50 |
0.23 |
Y |
<=== |
Show |
HD 12889 |
167545 |
02 05 42 -24 22 34 |
I 454 AB |
2021 |
45 |
166 |
0.5 |
8.62 |
11.32 |
2.70 |
Y |
|
Show |
|
167545 |
02 05 42 -24 22 34 |
I 454 AB,C |
2015 |
19 |
257 |
56.6 |
8.62 |
8.96 |
0.34 |
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Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Fornax |
|
SAO |
167545 |
|
HIP |
9774 |
|
Tycho2 |
6430-00057-1 |
|
HD |
12889 |
|
ADS |
1652 |
|
CD |
CD-24 891 |
|
CP |
CP-24 237 |
|
Distance |
46.64 |
|
Distance ly |
152.14 |
|
ORBITAL ELEMENTS
Period (P) | 2.582y | ± 0.003 |
Periastron (T) | 2010.917y | ± 0.015 |
Semi-major axis (a) | 0.048a | ± 0.003 |
Eccentricity (e) | 0.769 | ± 0.015 |
Inclination (i) | 75.9° | ± 4 |
Longitude of periastron (ω) | 287.9° | ± 1.5 |
Node (Ω) | 127.2° | ± 4.6 |
Notes | n | |
Reference | Tok2014b | |
Equinox | 2000 | |
Last observation | 2012 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
291.7 |
0.046 |
2001 |
168.5 |
0.019 |
2002 |
275.2 |
0.036 |
2003 |
304.4 |
0.031 |
2004 |
232.8 |
0.019 |
2005 |
287.8 |
0.045 |
2006 |
149.6 |
0.022 |
2007 |
268.0 |
0.031 |
2008 |
298.3 |
0.041 |
2009 |
208.0 |
0.017 |
2010 |
283.5 |
0.042 |
2011 |
131.7 |
0.019 |
2012 |
258.1 |
0.026 |
2013 |
293.9 |
0.045 |
2014 |
181.3 |
0.018 |
2015 |
278.5 |
0.039 |
2016 |
312.0 |
0.018 |
2017 |
243.5 |
0.022 |
2018 |
290.0 |
0.046 |
2019 |
159.4 |
0.021 |
2020 |
272.2 |
0.034 |
2021 |
301.2 |
0.037 |
2022 |
222.3 |
0.018 |
2023 |
285.9 |
0.044 |
2024 |
142.0 |
0.022 |
2025 |
264.0 |
0.029 |
2026 |
296.2 |
0.044 |
2027 |
195.7 |
0.017 |
2028 |
281.3 |
0.041 |
2029 |
106.5 |
0.007 |
2030 |
252.2 |
0.024 |
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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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