15226-4755 SLR 20 (HD 136466)
15h 22m 36.49s -47° 55' 15.5" P.A. 357.00 sep 0.6 mag 8.33,8.67 Sp G6V dist. 35.46 pc (115.67 l.y.)
| Coord 2000 |
15226-4755 |
|
Discov num |
SLR 20 |
|
Comp |
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Coord arcsec 2000 |
15 22 36.49 -47 55 15.5 |
|
| Date first |
1895 |
|
Date last |
2021 |
|
Obs |
55 |
|
| Pa first |
225 |
|
Pa last |
356.8 |
|
P.A. Now (θ) |
356.8° |
|
| Sep first |
2.0 |
|
Sep last |
0.606 |
|
Sep. Now (ρ) |
0.606" |
|
| Mag pri |
8.33 |
|
Mag sec |
8.67 |
|
delta mag (ΔM) |
0.34 |
|
Spectral class |
G6V (yellow) |
|
| Pri motion ra |
-369 |
|
Sec motion ra |
-369 |
|
| Pri motion dec |
-255 |
|
Sec motion dec |
-255 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 136466 |
|
Constellation |
Lupus |
|
SAO |
225709 |
|
HIP |
75255 |
|
| Tycho2 |
8299-01239-1 |
|
Gaia DR2 |
5902780301762458240 |
|
HD |
136466 |
|
GC |
20655 |
|
| GL |
Gl 582.1A |
|
CD |
CD-47 9926 |
|
CP |
CP-47 7081 |
|
Distance |
35.46 |
|
| Distance ly |
115.67 |
|
ORBITAL ELEMENTS
| Period (P) | 429.6y | ± 4.57 |
Periastron (T) | 1972.88y | ± 1.56 |
Semi-major axis (a) | 1.899a | ± 0.019 |
| Eccentricity (e) | 0.469 | ± 0.004 |
Inclination (i) | 109.7° | ± 0.5 |
Longitude of periastron (ω) | 344.6° | ± 2 |
| Node (Ω) | 56° | ± 0.9 |
Notes | n | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
36.1 |
0.883 |
| 2001 |
35.0 |
0.869 |
| 2002 |
33.8 |
0.854 |
| 2003 |
32.5 |
0.840 |
| 2004 |
31.2 |
0.825 |
| 2005 |
29.9 |
0.810 |
| 2006 |
28.5 |
0.795 |
| 2007 |
27.0 |
0.780 |
| 2008 |
25.5 |
0.765 |
| 2009 |
23.9 |
0.750 |
| 2010 |
22.3 |
0.735 |
| 2011 |
20.6 |
0.720 |
| 2012 |
18.8 |
0.706 |
| 2013 |
17.0 |
0.692 |
| 2014 |
15.1 |
0.678 |
| 2015 |
13.1 |
0.665 |
| 2016 |
11.0 |
0.652 |
| 2017 |
8.8 |
0.640 |
| 2018 |
6.6 |
0.628 |
| 2019 |
4.3 |
0.617 |
| 2020 |
1.9 |
0.607 |
| 2021 |
359.4 |
0.598 |
| 2022 |
356.8 |
0.590 |
| 2023 |
354.2 |
0.582 |
| 2024 |
351.5 |
0.576 |
| 2025 |
348.8 |
0.570 |
| 2026 |
346.0 |
0.566 |
| 2027 |
343.2 |
0.563 |
| 2028 |
340.3 |
0.561 |
| 2029 |
337.5 |
0.561 |
| 2030 |
334.6 |
0.561 |
|
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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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