16044-1122 STF1998AC

 
 
16H 04M 22.13S -11 22' 23.2" P.A. 43.3 SEP 7.53 MAG 5.16,7.30 SP G1V
 
 
Coord 2000
16044-1122
Discov num
STF1998
Comp
AC
Coord arcsec 2000
16 04 22.13 -11 22 23.2
Date first
1780
Date last
2016
Obs
384
Pa first
91
Pa last
45
P.A. Now (θ)
43.3°
Sep first
6.4
Sep last
7.6
Sep. Now (ρ)
7.53"
Mag pri
5.16
Mag sec
7.30
delta mag (ΔM)
2.14
Spectral class
G1V (yellow)
Pri motion ra
-072
Sec motion ra
-075
Pri motion dec
-035
Sec motion dec
-028
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
16044-1122 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Grafias 159665 16044-1122 STF1998 AB 1825 2016 611 9 1.1 5.16 4.87 0.29 Y
Show 159665 16044-1122 STF1998 AC 1780 2016 384 43 7.5 5.16 7.30 2.14 Y <===
Show 159665 16044-1122 STF1998 BC 1830 2012 76 42 7.6 4.87 7.30 2.43
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
SAO
159665
HIP
78727
Tycho2
5619-01257-1
HD
144069
HR
5977
GC
21593
ADS
9909
DM
BD-10 4237
Bayer
Xi Scorpii
Bayer name
Xi Sco
last precise pa
44.7
last precise sep
7.626
 
 
ORBITAL ELEMENTS
 
 
Period (P)1514.43y Periastron (T)2226.1y Semi-major axis (a)7.755a
Eccentricity (e)0.041 Inclination (i)131.5° Longitude of periastron (ω)59.3°
Node (Ω)47.4° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2005
label rho theta
2000 7.574 46.3
2001 7.572 46.1
2002 7.571 46.0
2003 7.569 45.8
2004 7.567 45.6
2005 7.565 45.5
2006 7.563 45.3
2007 7.561 45.2
2008 7.558 45.0
2009 7.556 44.8
2010 7.554 44.7
2011 7.551 44.5
2012 7.549 44.3
2013 7.546 44.2
2014 7.543 44.0
2015 7.541 43.8
2016 7.538 43.7
2017 7.535 43.5
2018 7.532 43.3
2019 7.529 43.2
2020 7.526 43.0
2021 7.522 42.8
2022 7.519 42.7
2023 7.516 42.5
2024 7.512 42.3
2025 7.509 42.2
2026 7.505 42.0
2027 7.502 41.8
2028 7.498 41.6
2029 7.494 41.5
2030 7.490 41.3

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