16202-3734 LDS 6312
16h 20m 03.50s -37° 31' 44.8" P.A. 227.00 sep 3.7 mag 10.73,12.20 Sp M2 dist. 8.34 pc (27.21 l.y.)
| Coord 2000 |
16202-3734 |
|
Discov num |
LDS6312 |
|
Comp |
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Coord arcsec 2000 |
16 20 03.50 -37 31 44.8 |
|
| Date first |
1920 |
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Date last |
2021 |
|
Obs |
11 |
|
| Pa first |
225 |
|
Pa last |
226.9 |
|
P.A. Now (θ) |
226.9° |
|
| Sep first |
7.0 |
|
Sep last |
3.722 |
|
Sep. Now (ρ) |
3.722" |
|
| Mag pri |
10.73 |
|
Mag sec |
12.20 |
|
delta mag (ΔM) |
1.47 |
|
Spectral class |
M2 (red) |
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| Pri motion ra |
-729 |
|
Sec motion ra |
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|
| Pri motion dec |
+991 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Scorpius |
|
HIP |
80018 |
|
Tycho2 |
7853-00670-1 |
|
GL |
Gl 618A |
|
| CD |
CD-3710765 |
|
Distance |
8.34 |
|
Distance ly |
27.21 |
|
ORBITAL ELEMENTS
| Period (P) | 611.807986y | |
Periastron (T) | 1915.268798y | |
Semi-major axis (a) | 63.11068a | |
| Eccentricity (e) | 0.97352 | |
Inclination (i) | 90.0051° | |
Longitude of periastron (ω) | 96.3087° | |
| Node (Ω) | 47.2112° | |
Notes | n | |
Reference | Kpp2020f | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
227.1 |
5.488 |
| 2001 |
227.1 |
5.403 |
| 2002 |
227.1 |
5.318 |
| 2003 |
227.1 |
5.232 |
| 2004 |
227.1 |
5.147 |
| 2005 |
227.1 |
5.060 |
| 2006 |
227.1 |
4.974 |
| 2007 |
227.1 |
4.888 |
| 2008 |
227.1 |
4.801 |
| 2009 |
227.1 |
4.714 |
| 2010 |
227.1 |
4.627 |
| 2011 |
227.1 |
4.539 |
| 2012 |
227.1 |
4.451 |
| 2013 |
227.1 |
4.364 |
| 2014 |
227.1 |
4.276 |
| 2015 |
227.1 |
4.187 |
| 2016 |
227.1 |
4.099 |
| 2017 |
227.1 |
4.010 |
| 2018 |
227.1 |
3.921 |
| 2019 |
227.1 |
3.833 |
| 2020 |
227.1 |
3.743 |
| 2021 |
227.1 |
3.654 |
| 2022 |
227.1 |
3.565 |
| 2023 |
227.1 |
3.475 |
| 2024 |
227.1 |
3.386 |
| 2025 |
227.1 |
3.296 |
| 2026 |
227.1 |
3.206 |
| 2027 |
227.1 |
3.116 |
| 2028 |
227.1 |
3.026 |
| 2029 |
227.1 |
2.935 |
| 2030 |
227.0 |
2.845 |
|
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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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