15088-4517 SEE 219 AB (Lam Lup)
15h 08m 50.63s -45° 16' 47.3" P.A. 157.00 sep 0.2 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 |
|
| Date first |
1897 |
|
Date last |
2023 |
|
Obs |
73 |
|
| Pa first |
160 |
|
Pa last |
157 |
|
P.A. Now (θ) |
161° |
|
| Sep first |
0.6 |
|
Sep last |
0.17 |
|
Sep. Now (ρ) |
0.171" |
|
| Mag pri |
4.43 |
|
Mag sec |
5.23 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
B3V (blue-white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-022 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
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 |
2023 |
73 |
157 |
0.2 |
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 |
|
|
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 |
| 2031 |
174.2 |
0.222 |
| 2032 |
175.9 |
0.230 |
| 2033 |
177.4 |
0.238 |
| 2034 |
178.9 |
0.246 |
| 2035 |
180.2 |
0.253 |
| 2036 |
181.5 |
0.260 |
| 2037 |
182.7 |
0.266 |
| 2038 |
183.9 |
0.272 |
| 2039 |
185.0 |
0.278 |
| 2040 |
186.1 |
0.283 |
| 2041 |
187.1 |
0.288 |
| 2042 |
188.1 |
0.292 |
| 2043 |
189.1 |
0.296 |
| 2044 |
190.0 |
0.299 |
| 2045 |
190.9 |
0.302 |
| 2046 |
191.9 |
0.304 |
| 2047 |
192.8 |
0.305 |
| 2048 |
193.7 |
0.306 |
| 2049 |
194.6 |
0.306 |
| 2050 |
195.5 |
0.305 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
