13237-0043 A  2489

 
 
13h 23m 43.16s -00 43' 09.1" P.A. 191.5 sep 0.97 mag 9.49,9.81 Sp G5 dist. 123.15 pc (401.72 l.y.)
 
 
Coord 2000
13237-0043
Discov num
A  2489
Comp
Coord arcsec 2000
13 23 43.16 -00 43 09.1
Date first
1912
Date last
2010
Obs
52
Pa first
191
Pa last
190
P.A. Now (θ)
191.5°
Sep first
0.3
Sep last
0.8
Sep. Now (ρ)
0.97"
Mag pri
9.49
Mag sec
9.81
delta mag (ΔM)
0.32
Spectral class
G5 (yellow)
Pri motion ra
-053
Sec motion ra
-053
Pri motion dec
-023
Sec motion dec
-023
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189.9
Precise sep
0.837
Constellation
Virgo
SAO
139313
HIP
65360
Tycho2
4959-00452-1
HD
116444
ADS
8884
Distance
123.15
Distance ly
401.72
last precise pa
189.9
last precise sep
0.837
 
 
ORBITAL ELEMENTS
 
 
Period (P)499y Periastron (T)1905y Semi-major axis (a)1.35a
Eccentricity (e)0.8 Inclination (i)95° Longitude of periastron (ω)142°
Node (Ω)183° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2002
label rho theta
2000 0.784 193.0
2001 0.795 192.9
2002 0.806 192.8
2003 0.818 192.7
2004 0.829 192.6
2005 0.840 192.5
2006 0.851 192.4
2007 0.862 192.3
2008 0.873 192.2
2009 0.884 192.1
2010 0.895 192.0
2011 0.905 191.9
2012 0.916 191.8
2013 0.927 191.8
2014 0.937 191.7
2015 0.948 191.6
2016 0.958 191.5
2017 0.969 191.5
2018 0.979 191.4
2019 0.990 191.3
2020 1.000 191.2
2021 1.010 191.2
2022 1.020 191.1
2023 1.030 191.0
2024 1.041 191.0
2025 1.051 190.9
2026 1.061 190.9
2027 1.070 190.8
2028 1.080 190.7
2029 1.090 190.7
2030 1.100 190.6

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

grafico orbita





wds13237-0043a.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
13237-0043 A 2489 2004 50 190 0.9 9.49 9.81 G5 NOD 132343.16-004309.1
13237-0043 A 2489 2009 51 190 0.9 9.49 9.81 G5 NOD 132343.16-004309.1
13237-0043 A 2489 2010 52 190 0.8 9.49 9.81 G5 NOD 132343.16-004309.1

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