15088-4517 SEE 219 AB (Lam Lup)
15h 08m 50.63s -45° 16' 47.3" P.A. 143.00 sep 0.1 mag 4.43,5.23 Sp B3V dist. 238.1 pc (776.68 l.y.)
Coord 2000 |
15088-4517 |
|
Discov num |
SEE 219 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 08 50.63 -45 16 47.3 |
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Date first |
1897 |
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Date last |
2019 |
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Obs |
72 |
|
Pa first |
160 |
|
Pa last |
142.6 |
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P.A. Now (θ) |
154.6° |
|
Sep first |
0.6 |
|
Sep last |
0.139 |
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Sep. Now (ρ) |
0.154" |
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Mag pri |
4.43 |
|
Mag sec |
5.23 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
B3V (blue-white) |
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Pri motion ra |
-011 |
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Sec motion ra |
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Pri motion dec |
-022 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
15088-4517 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Lam Lup |
225483 |
15 08 51 -45 16 47 |
SEE 219 AB |
2019 |
72 |
143 |
0.1 |
4.43 |
5.23 |
0.80 |
Y |
<=== |
Show |
|
225483 |
15 08 51 -45 16 47 |
TOK 8 AC |
1997 |
1 |
229 |
6.6 |
4.54 |
17.40 |
12.86 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
Lam Lup |
|
Constellation |
Lupus |
|
SAO |
225483 |
|
HIP |
74117 |
|
Tycho2 |
8293-03877-1 |
|
Gaia DR2 |
5907202503153332224 |
|
HD |
133955 |
|
HR |
5626 |
|
GC |
20356 |
|
CD |
CD-44 9889 |
|
CP |
CP-44 7186 |
|
Bayer |
Lambda Lupi |
|
Bayer name |
Lam Lup |
|
Distance |
238.1 |
|
Distance ly |
776.68 |
|
Bayer greek |
λ Lup |
|
ORBITAL ELEMENTS
Period (P) | 70.8y | ± 0.8 |
Periastron (T) | 1997.907y | ± 0.105 |
Semi-major axis (a) | 0.2597a | ± 0.0021 |
Eccentricity (e) | 0.6283 | ± 0.009 |
Inclination (i) | 71.59° | ± 0.41 |
Longitude of periastron (ω) | 299.9° | ± 1.1 |
Node (Ω) | 26.64° | ± 0.61 |
Notes | n | |
Reference | Tok2012b | |
Equinox | 2000 | |
Last observation | 2012 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
24.5 |
0.114 |
2001 |
30.2 |
0.129 |
2002 |
35.0 |
0.137 |
2003 |
39.4 |
0.140 |
2004 |
43.7 |
0.140 |
2005 |
48.1 |
0.137 |
2006 |
52.7 |
0.133 |
2007 |
57.6 |
0.129 |
2008 |
62.9 |
0.124 |
2009 |
68.6 |
0.119 |
2010 |
74.8 |
0.114 |
2011 |
81.5 |
0.110 |
2012 |
88.6 |
0.108 |
2013 |
96.0 |
0.106 |
2014 |
103.5 |
0.106 |
2015 |
110.9 |
0.107 |
2016 |
118.1 |
0.110 |
2017 |
124.9 |
0.113 |
2018 |
131.2 |
0.118 |
2019 |
136.9 |
0.124 |
2020 |
142.1 |
0.131 |
2021 |
146.7 |
0.138 |
2022 |
150.9 |
0.146 |
2023 |
154.6 |
0.154 |
2024 |
158.0 |
0.163 |
2025 |
161.0 |
0.171 |
2026 |
163.7 |
0.180 |
2027 |
166.2 |
0.189 |
2028 |
168.5 |
0.197 |
2029 |
170.6 |
0.206 |
2030 |
172.5 |
0.214 |
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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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