16057-3252 SEE 264 AB (HD 144179)
16h 05m 39.19s -32° 51' 44.4" P.A. 356.00 sep 0.8 mag 8.34,9.29 Sp K0V dist. 40.49 pc (132.08 l.y.)
| Coord 2000 |
16057-3252 |
|
Discov num |
SEE 264 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 05 39.19 -32 51 44.4 |
|
| Date first |
1897 |
|
Date last |
2021 |
|
Obs |
50 |
|
| Pa first |
340 |
|
Pa last |
355.6 |
|
P.A. Now (θ) |
355.6° |
|
| Sep first |
0.6 |
|
Sep last |
0.849 |
|
Sep. Now (ρ) |
0.849" |
|
| Mag pri |
8.34 |
|
Mag sec |
9.29 |
|
delta mag (ΔM) |
0.95 |
|
Spectral class |
K0V (yellow-orange) |
|
| Pri motion ra |
-361 |
|
Sec motion ra |
-374 |
|
| Pri motion dec |
-235 |
|
Sec motion dec |
-212 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.061 (< 0.3, Physical double)
This double is physical.
16057-3252 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 144179 |
207321 |
16 05 39 -32 51 44 |
SEE 264 AB |
2021 |
50 |
356 |
0.8 |
8.34 |
9.29 |
0.95 |
Y |
<=== |
| Show |
|
|
16 05 39 -32 51 44 |
SEE 264 AC |
2015 |
12 |
3 |
10.0 |
8.34 |
11.15 |
2.81 |
|
|
| Show |
|
207321 |
16 05 39 -32 51 43 |
WSI 84 Ba,Bb |
2021 |
16 |
212 |
0.1 |
10.00 |
10.10 |
0.10 |
Y |
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 144179 |
|
Constellation |
Lupus |
|
SAO |
207321 |
|
HIP |
78842 |
|
| Tycho2 |
7334-01540-1 |
|
HD |
144179 |
|
GL |
Wo 9543A |
|
CD |
CD-3211405 |
|
| CP |
CP-32 4075 |
|
Distance |
40.49 |
|
Distance ly |
132.08 |
|
ORBITAL ELEMENTS
| Period (P) | 131.2y | ± 1.9 |
Periastron (T) | 1981.4y | ± 4 |
Semi-major axis (a) | 0.807a | ± 0.07 |
| Eccentricity (e) | 0.029 | ± 0.013 |
Inclination (i) | 152.3° | ± 1.4 |
Longitude of periastron (ω) | 53.3° | ± 12.6 |
| Node (Ω) | 161.7° | ± 3.8 |
Notes | n | |
Reference | Tok2018j | |
| Equinox | | |
Last observation | 2017 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
52.7 |
0.710 |
| 2001 |
49.6 |
0.714 |
| 2002 |
46.5 |
0.718 |
| 2003 |
43.4 |
0.722 |
| 2004 |
40.4 |
0.727 |
| 2005 |
37.4 |
0.732 |
| 2006 |
34.5 |
0.737 |
| 2007 |
31.6 |
0.742 |
| 2008 |
28.7 |
0.747 |
| 2009 |
25.9 |
0.753 |
| 2010 |
23.2 |
0.758 |
| 2011 |
20.4 |
0.764 |
| 2012 |
17.7 |
0.769 |
| 2013 |
15.1 |
0.775 |
| 2014 |
12.5 |
0.780 |
| 2015 |
9.9 |
0.785 |
| 2016 |
7.3 |
0.790 |
| 2017 |
4.8 |
0.794 |
| 2018 |
2.3 |
0.798 |
| 2019 |
359.9 |
0.802 |
| 2020 |
357.4 |
0.806 |
| 2021 |
355.0 |
0.809 |
| 2022 |
352.6 |
0.812 |
| 2023 |
350.2 |
0.815 |
| 2024 |
347.8 |
0.817 |
| 2025 |
345.4 |
0.819 |
| 2026 |
343.1 |
0.820 |
| 2027 |
340.7 |
0.821 |
| 2028 |
338.4 |
0.821 |
| 2029 |
336.1 |
0.822 |
| 2030 |
333.7 |
0.821 |
|
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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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