05086-1810 WSI 72
05h 08m 35.04s -18° 10' 19.3" P.A. 207.00 sep 0.0 mag 11.10,11.10 Sp M3.5V dist. 9.27 pc (30.24 l.y.)
Coord 2000 |
05086-1810 |
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Discov num |
WSI 72 |
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Comp |
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Coord arcsec 2000 |
05 08 35.04 -18 10 19.3 |
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Date first |
2003 |
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Date last |
2021 |
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Obs |
34 |
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Pa first |
41 |
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Pa last |
206.6 |
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P.A. Now (θ) |
206.6° |
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Sep first |
0.1 |
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Sep last |
0.023 |
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Sep. Now (ρ) |
0.023" |
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Mag pri |
11.10 |
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Mag sec |
11.10 |
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delta mag (ΔM) |
0 |
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Spectral class |
M3.5V (red) |
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Pri motion ra |
+050 |
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Sec motion ra |
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Pri motion dec |
-140 |
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Sec motion dec |
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Notes |
O
P
(Orbital solution, 100-year proper motion) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Lepus |
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HIP |
23932 |
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Tycho2 |
5905-01336-1 |
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GL |
Gl 190 |
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Distance |
9.27 |
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Distance ly |
30.24 |
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ORBITAL ELEMENTS
Period (P) | 0.962y | ± 0.002 |
Periastron (T) | 2016.174y | ± 0.016 |
Semi-major axis (a) | 0.0994a | ± 0.0022 |
Eccentricity (e) | 0.258 | ± 0.025 |
Inclination (i) | 93.8° | ± 0.7 |
Longitude of periastron (ω) | 163.2° | ± 4.8 |
Node (Ω) | 39.8° | ± 0.4 |
Notes | | |
Reference | Tok2017b | |
Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
198.7 |
0.017 |
2001 |
82.4 |
0.010 |
2002 |
52.5 |
0.031 |
2003 |
47.1 |
0.053 |
2004 |
44.7 |
0.072 |
2005 |
43.3 |
0.089 |
2006 |
42.3 |
0.103 |
2007 |
41.6 |
0.113 |
2008 |
40.9 |
0.120 |
2009 |
40.3 |
0.123 |
2010 |
39.7 |
0.123 |
2011 |
39.1 |
0.118 |
2012 |
38.4 |
0.110 |
2013 |
37.6 |
0.097 |
2014 |
36.4 |
0.080 |
2015 |
34.5 |
0.059 |
2016 |
30.3 |
0.035 |
2017 |
4.2 |
0.010 |
2018 |
235.3 |
0.020 |
2019 |
225.2 |
0.044 |
2020 |
222.1 |
0.064 |
2021 |
220.2 |
0.074 |
2022 |
218.6 |
0.073 |
2023 |
216.6 |
0.063 |
2024 |
213.5 |
0.045 |
2025 |
205.4 |
0.024 |
2026 |
130.6 |
0.007 |
2027 |
56.2 |
0.024 |
2028 |
48.2 |
0.046 |
2029 |
45.3 |
0.066 |
2030 |
43.7 |
0.084 |
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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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