02051-1737 BEU 3
02h 05m 04.84s -17° 36' 52.6" P.A. 101.00 sep 0.2 mag 10.20, Sp M2.5+M7 dist. 9.14 pc (29.81 l.y.)
Coord 2000 |
02051-1737 |
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Discov num |
BEU 3 |
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Comp |
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Coord arcsec 2000 |
02 05 04.84 -17 36 52.6 |
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Date first |
2002 |
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Date last |
2020 |
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Obs |
20 |
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Pa first |
101 |
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Pa last |
100.7 |
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P.A. Now (θ) |
100.7° |
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Sep first |
0.4 |
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Sep last |
0.244 |
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Sep. Now (ρ) |
0.244" |
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Mag pri |
10.20 |
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Mag sec |
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delta mag (ΔM) |
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Spectral class |
M2.5+M7 (red/red) |
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Pri motion ra |
+132 |
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Sec motion ra |
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Pri motion dec |
-017 |
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Sec motion dec |
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Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cetus |
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HIP |
9724 |
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Tycho2 |
5856-02250-1 |
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GL |
Gl 84 |
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BD |
BD-18 359 |
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Distance |
9.14 |
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Distance ly |
29.81 |
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ORBITAL ELEMENTS
Period (P) | 13.328y | ± 0.037 |
Periastron (T) | 61554d (2027.405y) | ± 14 |
Semi-major axis (a) | 495.5m | ± 1.2 |
Eccentricity (e) | 0.3771 | ± 0.0082 |
Inclination (i) | 91.771° | ± 0.057 |
Longitude of periastron (ω) | 245.62° | ± 0.48 |
Node (Ω) | 102.987° | ± 0.022 |
Notes | n | |
Reference | MnA2019 | |
Equinox | | |
Last observation | 2017 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
282.3 |
0.316 |
2001 |
271.0 |
0.046 |
2002 |
104.7 |
0.269 |
2003 |
103.3 |
0.464 |
2004 |
102.6 |
0.538 |
2005 |
101.9 |
0.527 |
2006 |
101.1 |
0.454 |
2007 |
99.9 |
0.339 |
2008 |
97.1 |
0.195 |
2009 |
71.2 |
0.038 |
2010 |
290.9 |
0.133 |
2011 |
285.9 |
0.279 |
2012 |
284.2 |
0.376 |
2013 |
282.9 |
0.361 |
2014 |
279.8 |
0.152 |
2015 |
106.0 |
0.176 |
2016 |
103.6 |
0.415 |
2017 |
102.8 |
0.525 |
2018 |
102.1 |
0.538 |
2019 |
101.4 |
0.484 |
2020 |
100.4 |
0.381 |
2021 |
98.4 |
0.245 |
2022 |
89.7 |
0.089 |
2023 |
296.8 |
0.081 |
2024 |
286.9 |
0.234 |
2025 |
284.7 |
0.353 |
2026 |
283.3 |
0.384 |
2027 |
281.5 |
0.243 |
2028 |
110.9 |
0.072 |
2029 |
104.0 |
0.352 |
2030 |
103.0 |
0.501 |
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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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