16294-2626 GNT   1 (Antares)

 
 
16H 29M 24.47S -26 25' 55.0" P.A. 277.3 SEP 2.58 MAG 0.96,5.4 SP M1 DIST. 169.78 PC (553.82 L.Y.)
 
 
Coord 2000
16294-2626
Discov num
GNT   1
Comp
Coord arcsec 2000
16 29 24.47 -26 25 55.0
Date first
1847
Date last
2016
Obs
145
Pa first
273
Pa last
276
P.A. Now (θ)
277.3°
Sep first
2.6
Sep last
3.2
Sep. Now (ρ)
2.58"
Mag pri
0.96
Mag sec
5.4
delta mag (ΔM)
4.44
Spectral class
M1 (red)
Pri motion ra
-010
Sec motion ra
Pri motion dec
-020
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name
Antares
Meaning
rival of Mars
Other names
COR SCORPII, KALB AL AKRAB, VESPERTILIO
Constellation
Scorpius
SAO
184415
HIP
80763
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
Distance
169.78
Distance ly
553.82
last precise pa
276
last precise sep
3.16
 
 
ORBITAL ELEMENTS
 
 
Period (P)1217.536y± 81.521 Periastron (T)1273.67y± 64.033 Semi-major axis (a)2.9275a± 0.03447
Eccentricity (e)0.0786± 0.04429 Inclination (i)80.75°± 0.072 Longitude of periastron (ω)0.01°± 5.226
Node (Ω)90.99°± 1.788 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1997
label rho theta
2000 2.715 276.3
2001 2.707 276.4
2002 2.700 276.4
2003 2.692 276.5
2004 2.685 276.5
2005 2.677 276.6
2006 2.669 276.6
2007 2.662 276.7
2008 2.654 276.7
2009 2.646 276.8
2010 2.638 276.9
2011 2.630 276.9
2012 2.622 277.0
2013 2.614 277.0
2014 2.606 277.1
2015 2.598 277.2
2016 2.589 277.2
2017 2.581 277.3
2018 2.573 277.3
2019 2.564 277.4
2020 2.556 277.5
2021 2.547 277.5
2022 2.539 277.6
2023 2.530 277.7
2024 2.522 277.7
2025 2.513 277.8
2026 2.504 277.8
2027 2.495 277.9
2028 2.486 278.0
2029 2.477 278.0
2030 2.468 278.1

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic