10370-0850 A   556AB

 
 
10h 37m 00.02s -08 50' 23.6" P.A. 210.5 sep 0.96 mag 7.10,9.80 Sp G0V+K5V dist. 39.86 pc (130.02 l.y.)
 
 
Coord 2000
10370-0850
Discov num
A   556
Comp
AB
Coord arcsec 2000
10 37 00.02 -08 50 23.6
Date first
1903
Date last
2017
Obs
68
Pa first
54
Pa last
212
P.A. Now (θ)
210.5°
Sep first
1.3
Sep last
1.0
Sep. Now (ρ)
0.96"
Mag pri
7.10
Mag sec
9.80
delta mag (ΔM)
2.7
Spectral class
G0V+K5V (yellow/yellow-orange)
Pri motion ra
-094
Sec motion ra
-101
Pri motion dec
-049
Sec motion dec
-074
Notes
N O (See Notes, Orbital solution)
rPM=0.207 (< 0.3, Physical double)
This double is physical.
 
 
10370-0850 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 10370-0850 TOK 44 Aa,Ab 2003 2017 25 263 0.1 7.19 10.05 2.86 Y
Show 10370-0850 A 556 AB 1903 2017 68 210 1.0 7.10 9.80 2.70 Y <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
211.6
Precise sep
0.984
Cdsa2 id
A 556 AB
Constellation
Sextans
HIP
51966
Tycho2
5492-00987-1
HD
91962
ADS
7854
BD
BD-08 2963
Ra deg
10.616672222222222
De deg
-8.83988888888889
Distance
39.86
Distance ly
130.02
last precise pa
211.6
last precise sep
0.984
 
 
ORBITAL ELEMENTS
 
 
Period (P)205y Periastron (T)2048.6y± 2.5 Semi-major axis (a)1.334a± 0.016
Eccentricity (e)0.301± 0.016 Inclination (i)54.2°± 0.8 Longitude of periastron (ω)219.7°± 1.3
Node (Ω)63.2°± 2 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.858 171.4
2001 0.859 173.8
2002 0.861 176.1
2003 0.863 178.5
2004 0.866 180.8
2005 0.870 183.1
2006 0.875 185.4
2007 0.880 187.7
2008 0.885 189.9
2009 0.892 192.1
2010 0.898 194.3
2011 0.905 196.5
2012 0.912 198.6
2013 0.920 200.7
2014 0.927 202.7
2015 0.935 204.7
2016 0.943 206.7
2017 0.950 208.6
2018 0.958 210.5
2019 0.965 212.4
2020 0.972 214.3
2021 0.979 216.1
2022 0.985 217.9
2023 0.991 219.7
2024 0.996 221.5
2025 1.001 223.2
2026 1.005 225.0
2027 1.008 226.7
2028 1.010 228.4
2029 1.012 230.1
2030 1.012 231.8

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

grafico orbita





wds10370-0850a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10370-0850 A 556 AB 1997 41 143 0.8 7.23 9.73 G0 NOD 103700.02-085023.6
10370-0850 A 556 AB 2009 43 194 0.9 7.23 9.73 G0 NOD 103700.02-085023.6
10370-0850 A 556 AB 2010 45 196 0.9 7.23 9.73 G0 NOD 103700.02-085023.6
10370-0850 A 556 AB 2012 47 197 0.9 7.23 9.73 G0 NOD 103700.02-085023.6
10370-0850 A 556 AB 2013 49 199 0.9 7.23 9.73 G0 NOD 103700.02-085023.6
10370-0850 A 556 AB 2015 55 205 0.9 7.10 9.80 G0V+K5V NO 103700.02-085023.6
10370-0850 A 556 AB 2017 68 212 1.0 7.10 9.80 G0V+K5V NO 103700.02-085023.6

If you need more information about this double, apply for a data request form to the WDS.