13347-1313 BU  932AB (y Vir)

 
 
13h 34m 40.48s -13 12' 51.5" P.A. 66.1 sep 0.42 mag 6.30,7.29 Sp A0V dist. 148.15 pc (483.27 l.y.)
 
 
Coord 2000
13347-1313
Discov num
BU  932
Comp
AB
Coord arcsec 2000
13 34 40.48 -13 12 51.5
Date first
1879
Date last
2016
Obs
101
Pa first
81
Pa last
66
P.A. Now (θ)
66.1°
Sep first
0.5
Sep last
0.4
Sep. Now (ρ)
0.42"
Mag pri
6.30
Mag sec
7.29
delta mag (ΔM)
0.99
Spectral class
A0V (white)
Pri motion ra
-045
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
13347-1313 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show y Vir 158021 13347-1313 BU 932 AB 1879 2016 101 66 0.4 6.30 7.29 0.99 Y <===
Show 158021 13347-1313 BU 932 AB,C 1879 2000 13 146 26.9 5.94 12.40 6.46
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
66.4
Precise sep
0.429
Other name
y Vir
Constellation
Virgo
SAO
158021
HIP
66247
Tycho2
5551-01507-1
HD
118054
HR
5106
GC
18348
ADS
8954
BD
BD-12 3843
Distance
148.15
Distance ly
483.27
last precise pa
66.4
last precise sep
0.429
 
 
ORBITAL ELEMENTS
 
 
Period (P)177.7y Periastron (T)1921.87y Semi-major axis (a)0.531a
Eccentricity (e)0.925 Inclination (i)70.4° Longitude of periastron (ω)103.6°
Node (Ω)117.7° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.388 58.6
2001 0.391 59.1
2002 0.393 59.6
2003 0.395 60.0
2004 0.397 60.5
2005 0.399 61.0
2006 0.402 61.4
2007 0.404 61.9
2008 0.406 62.3
2009 0.408 62.8
2010 0.410 63.2
2011 0.411 63.6
2012 0.413 64.0
2013 0.415 64.5
2014 0.417 64.9
2015 0.418 65.3
2016 0.420 65.7
2017 0.422 66.1
2018 0.423 66.5
2019 0.425 66.9
2020 0.426 67.4
2021 0.427 67.8
2022 0.429 68.1
2023 0.430 68.5
2024 0.431 68.9
2025 0.432 69.3
2026 0.433 69.7
2027 0.434 70.1
2028 0.435 70.5
2029 0.436 70.9
2030 0.437 71.3

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

grafico orbita





wds13347-1313a.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
13347-1313 BU 932 AB 2006 102 57 0.4 6.30 7.29 A0V NOD 133440.48-131251.5
13347-1313 BU 932 AB 2009 105 62 0.4 6.30 7.29 A0V NOD 133440.48-131251.5
13347-1313 BU 932 AB 2016 101 66 0.4 6.30 7.29 A0V NO 133440.48-131251.5

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