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 |
|
Sep last |
0.235 |
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Sep. Now (ρ) |
0.235" |
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| Mag pri |
11.10 |
|
Mag sec |
13.60 |
|
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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