16294-2626 GNT 1 (Antares)
16h 29m 24.47s -26° 25' 55.0" P.A. 277.00 sep 2.7 mag 0.96,5.40 Sp M1 dist. 169.78 pc (553.82 l.y.)
| Coord 2000 |
16294-2626 |
|
Discov num |
GNT 1 |
|
Comp |
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Coord arcsec 2000 |
16 29 24.47 -26 25 55.0 |
|
| Date first |
1847 |
|
Date last |
2019 |
|
Obs |
149 |
|
| Pa first |
273 |
|
Pa last |
276.9 |
|
P.A. Now (θ) |
276.9° |
|
| Sep first |
2.6 |
|
Sep last |
2.743 |
|
Sep. Now (ρ) |
2.743" |
|
| Mag pri |
0.96 |
|
Mag sec |
5.40 |
|
delta mag (ΔM) |
4.44 |
|
Spectral class |
M1 (red) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
|
|
| Pri motion dec |
-020 |
|
Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Antares |
|
Constellation |
Scorpius |
|
SAO |
184415 |
|
HIP |
80763 |
|
| Tycho2 |
6803-02158-1 |
|
HD |
148478 |
|
HR |
6134 |
|
GC |
22157 |
|
| ADS |
10074 |
|
CD |
CD-2611359 |
|
CP |
CP-26 5648 |
|
Bayer |
Alpha Scorpii |
|
| Bayer name |
Alp Sco |
|
Flamsteed |
21 Scorpii |
|
Flamsteed name |
21 Sco |
|
FK5 |
616 |
|
| Distance |
169.78 |
|
Distance ly |
553.82 |
|
Bayer greek |
α Sco |
|
| Other names |
COR SCORPII, KALB AL AKRAB, VESPERTILIO |
|
ORBITAL ELEMENTS
| Period (P) | 2666.4855y | ± 1340.2811 |
Periastron (T) | 2194.6737y | ± 392.0113 |
Semi-major axis (a) | 4.38451a | ± 2.95015 |
| Eccentricity (e) | 0.82117 | ± 0.14143 |
Inclination (i) | 81.567° | ± 5.868 |
Longitude of periastron (ω) | 280.946° | ± 15.485 |
| Node (Ω) | 101.141° | ± 10.661 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
276.0 |
2.738 |
| 2001 |
276.1 |
2.732 |
| 2002 |
276.1 |
2.727 |
| 2003 |
276.1 |
2.721 |
| 2004 |
276.1 |
2.716 |
| 2005 |
276.2 |
2.710 |
| 2006 |
276.2 |
2.705 |
| 2007 |
276.2 |
2.699 |
| 2008 |
276.3 |
2.694 |
| 2009 |
276.3 |
2.688 |
| 2010 |
276.3 |
2.682 |
| 2011 |
276.4 |
2.677 |
| 2012 |
276.4 |
2.671 |
| 2013 |
276.4 |
2.665 |
| 2014 |
276.4 |
2.659 |
| 2015 |
276.5 |
2.653 |
| 2016 |
276.5 |
2.647 |
| 2017 |
276.5 |
2.641 |
| 2018 |
276.6 |
2.635 |
| 2019 |
276.6 |
2.629 |
| 2020 |
276.6 |
2.623 |
| 2021 |
276.7 |
2.617 |
| 2022 |
276.7 |
2.611 |
| 2023 |
276.7 |
2.604 |
| 2024 |
276.8 |
2.598 |
| 2025 |
276.8 |
2.592 |
| 2026 |
276.8 |
2.585 |
| 2027 |
276.9 |
2.579 |
| 2028 |
276.9 |
2.572 |
| 2029 |
276.9 |
2.566 |
| 2030 |
277.0 |
2.559 |
|
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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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