13038-2035 BU  341

 
 
13h 03m 46.09s -20 35' 00.3" P.A. 130.2 sep 0.26 mag 6.25,6.51 Sp F8V dist. 28.21 pc (92.02 l.y.)
 
 
Coord 2000
13038-2035
Discov num
BU  341
Comp
Coord arcsec 2000
13 03 46.09 -20 35 00.3
Date first
1875
Date last
2018
Obs
76
Pa first
140
Pa last
131
P.A. Now (θ)
130.2°
Sep first
1.0
Sep last
0.3
Sep. Now (ρ)
0.26"
Mag pri
6.25
Mag sec
6.51
delta mag (ΔM)
0.26
Spectral class
F8V (yellow-white)
Pri motion ra
+134
Sec motion ra
+134
Pri motion dec
+001
Sec motion dec
+001
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
130.9
Precise sep
0.311
Constellation
Virgo
SAO
181357
HIP
63738
Tycho2
6118-01515-1
HD
113415
HR
4935
ADS
8757
GL
Gl 496A
BD
BD-19 3629
Distance
28.21
Distance ly
92.02
last precise pa
130.9
last precise sep
0.311
 
 
ORBITAL ELEMENTS
 
 
Period (P)58.98y Periastron (T)1964.1y Semi-major axis (a)0.718a
Eccentricity (e)0.988 Inclination (i)92.8° Longitude of periastron (ω)234.5°
Node (Ω)136.2° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.775 132.0
2001 0.762 132.0
2002 0.748 132.0
2003 0.732 131.9
2004 0.715 131.9
2005 0.697 131.8
2006 0.677 131.8
2007 0.656 131.7
2008 0.634 131.7
2009 0.610 131.6
2010 0.584 131.5
2011 0.557 131.5
2012 0.528 131.4
2013 0.497 131.3
2014 0.464 131.2
2015 0.428 131.1
2016 0.390 130.9
2017 0.350 130.8
2018 0.306 130.5
2019 0.258 130.2
2020 0.832 132.3
2021 0.646 131.7
2022 0.570 131.5
2023 0.013 325.0
2024 0.195 134.3
2025 0.805 132.7
2026 0.661 133.0
2027 0.815 132.6
2028 0.477 133.4
2029 0.522 133.3
2030 0.562 133.2

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






wds13038-2035a.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
13038-2035 BU 341 2000 70 131 0.7 6.25 6.51 F8V D 130346.09-203500.3
13038-2035 BU 341 2009 71 132 0.6 6.25 6.51 F8V D 130346.09-203500.3
13038-2035 BU 341 2010 73 132 0.6 6.25 6.51 F8V OD 130346.09-203500.3
13038-2035 BU 341 2014 73 132 0.5 6.25 6.51 F8V NO 130346.09-203500.3
13038-2035 BU 341 2016 75 131 0.4 6.25 6.51 F8V NO 130346.09-203500.3

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