09439-5738 HDS 1404 Aa,Ab
09h 43m 53.39s -57° 38' 12.4" P.A. 276.00 sep 0.1 mag 8.26,9.82 Sp F5V dist. 113.51 pc (370.27 l.y.)
Coord 2000 |
09439-5738 |
|
Discov num |
HDS1404 |
|
Comp |
Aa,Ab |
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Coord arcsec 2000 |
09 43 53.39 -57 38 12.4 |
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Date first |
1991 |
|
Date last |
2021 |
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Obs |
13 |
|
Pa first |
356 |
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Pa last |
275.9 |
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P.A. Now (θ) |
295.4° |
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Sep first |
0.2 |
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Sep last |
0.075 |
|
Sep. Now (ρ) |
0.1" |
|
Mag pri |
8.26 |
|
Mag sec |
9.82 |
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delta mag (ΔM) |
1.56 |
|
Spectral class |
F5V (yellow-white) |
|
Pri motion ra |
-027 |
|
Sec motion ra |
|
|
Pri motion dec |
+035 |
|
Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
09439-5738 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
237274 |
09 43 53 -57 38 12 |
HDS 1404 Aa,Ab |
2021 |
13 |
276 |
0.1 |
8.26 |
9.82 |
1.56 |
Y |
<=== |
Show |
HD 84534 |
237274 |
09 43 53 -57 38 12 |
HU 1468 AB |
2015 |
7 |
199 |
4.5 |
8.26 |
11.80 |
3.54 |
|
|
Show |
|
237274 |
09 43 53 -57 38 12 |
HU 1468 AC |
2015 |
6 |
230 |
18.5 |
8.26 |
12.00 |
3.74 |
|
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Carina |
|
SAO |
237274 |
|
HIP |
47736 |
|
Tycho2 |
8593-01766-1 |
|
Gaia DR2 |
5306016826739365888 |
|
HD |
84534 |
|
CP |
CP-57 2273 |
|
Distance |
113.51 |
|
Distance ly |
370.27 |
|
ORBITAL ELEMENTS
Period (P) | 22.24y | ± 1.16 |
Periastron (T) | 2019.578y | ± 0.023 |
Semi-major axis (a) | 0.115a | ± 0.006 |
Eccentricity (e) | 0.694 | ± 0.012 |
Inclination (i) | 44° | ± 2.1 |
Longitude of periastron (ω) | 347.8° | ± 2.9 |
Node (Ω) | 160.9° | ± 3.8 |
Notes | | |
Reference | Tok2021f | |
Equinox | | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
285.2 |
0.082 |
2001 |
297.9 |
0.106 |
2002 |
306.1 |
0.127 |
2003 |
312.1 |
0.145 |
2004 |
316.8 |
0.160 |
2005 |
320.8 |
0.172 |
2006 |
324.4 |
0.181 |
2007 |
327.6 |
0.188 |
2008 |
330.7 |
0.192 |
2009 |
333.7 |
0.193 |
2010 |
336.7 |
0.192 |
2011 |
339.7 |
0.188 |
2012 |
343.0 |
0.181 |
2013 |
346.6 |
0.170 |
2014 |
350.7 |
0.157 |
2015 |
355.8 |
0.140 |
2016 |
2.5 |
0.118 |
2017 |
12.7 |
0.091 |
2018 |
32.8 |
0.060 |
2019 |
93.8 |
0.033 |
2020 |
188.0 |
0.037 |
2021 |
251.6 |
0.051 |
2022 |
280.8 |
0.076 |
2023 |
295.4 |
0.100 |
2024 |
304.4 |
0.122 |
2025 |
310.8 |
0.141 |
2026 |
315.8 |
0.157 |
2027 |
319.9 |
0.169 |
2028 |
323.6 |
0.179 |
2029 |
326.9 |
0.187 |
2030 |
330.0 |
0.191 |
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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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