15457-4330 TSN 174
15h 45m 41.61s -43° 30' 28.4" P.A. 335.00 sep 0.2 mag 11.10,13.60 Sp M4
Coord 2000 |
15457-4330 |
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Discov num |
TSN 174 |
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Comp |
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Coord arcsec 2000 |
15 45 41.61 -43 30 28.4 |
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Date first |
2019 |
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Date last |
2020 |
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Obs |
2 |
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Pa first |
336 |
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Pa last |
335.1 |
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P.A. Now (θ) |
335.1° |
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Sep first |
0.3 |
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Sep last |
0.235 |
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Sep. Now (ρ) |
0.235" |
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Mag pri |
11.10 |
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Mag sec |
13.60 |
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delta mag (ΔM) |
2.5 |
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Spectral class |
M4 (red) |
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Pri motion ra |
-266 |
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Sec motion ra |
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Pri motion dec |
-394 |
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Sec motion dec |
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Notes |
R
(Red magnitudes) |
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Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
SUSPECTED ORBITAL ELEMENTS
Identifier | 15457-4330 |
coord_arcsec_2000 | 154541.66-433028.3 |
Period (P) | 9.87y | ± 0.06 |
Periastron (T) | 1994.01y | ± 0.18 |
Semi-major axis (a) | 36.2m | ± 1.14 |
Eccentricity (e) | 0.51 | ± 0.06 |
Inclination (i) | 89.95° | ± 0.8 |
Longitude of periastron (ω) | 191.57° | ± 4.37 |
Node (Ω) | 154.16° | ± 1 |
Notes | | |
Reference | TSN2020 | |
Equinox | | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
154.2 |
0.047 |
2001 |
154.2 |
0.035 |
2002 |
154.3 |
0.017 |
2003 |
334.0 |
0.007 |
2004 |
334.2 |
0.016 |
2005 |
154.0 |
0.011 |
2006 |
154.1 |
0.034 |
2007 |
154.1 |
0.047 |
2008 |
154.2 |
0.054 |
2009 |
154.2 |
0.053 |
2010 |
154.2 |
0.046 |
2011 |
154.2 |
0.033 |
2012 |
154.3 |
0.014 |
2013 |
334.0 |
0.010 |
2014 |
334.2 |
0.014 |
2015 |
154.1 |
0.014 |
2016 |
154.1 |
0.036 |
2017 |
154.1 |
0.049 |
2018 |
154.2 |
0.054 |
2019 |
154.2 |
0.052 |
2020 |
154.2 |
0.045 |
2021 |
154.2 |
0.031 |
2022 |
154.3 |
0.011 |
2023 |
334.1 |
0.012 |
2024 |
334.2 |
0.011 |
2025 |
154.1 |
0.017 |
2026 |
154.1 |
0.038 |
2027 |
154.2 |
0.050 |
2028 |
154.2 |
0.054 |
2029 |
154.2 |
0.052 |
2030 |
154.2 |
0.043 |
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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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