13461+0507 STF1781AB (HT Vir)

 
 
13h 46m 06.75s +05 06' 56.1" P.A. 197 sep 1.01 mag 7.89,8.10 Sp F8V+F0 dist. 46.38 pc (151.29 l.y.)
 
 
Coord 2000
13461+0507
Discov num
STF1781
Comp
AB
Coord arcsec 2000
13 46 06.75 +05 06 56.1
Date first
1830
Date last
2017
Obs
291
Pa first
240
Pa last
195
P.A. Now (θ)
197°
Sep first
1.4
Sep last
1.0
Sep. Now (ρ)
1.01"
Mag pri
7.89
Mag sec
8.10
delta mag (ΔM)
0.21
Spectral class
F8V+F0 (yellow-white/yellow-white)
Pri motion ra
-103
Sec motion ra
-103
Pri motion dec
-035
Sec motion dec
-035
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
13461+0507 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show HT Vir 13461+0507 STF1781 AB 1830 2017 291 197 1.0 7.89 8.10 0.21 Y <===
Show 13461+0507 TOK 568 AC 1980 2000 4 128 999.9 7.34 9.76 2.42
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
195.1
Precise sep
1.047
Var name
HT Vir
Constellation
Virgo
HIP
67186
Tycho2
0314-01342-1
HD
119931
ADS
9019
BD
BD+05 2794
Distance
46.38
Distance ly
151.29
last precise pa
195.1
last precise sep
1.047
 
 
ORBITAL ELEMENTS
 
 
Period (P)261.6y± 5.3 Periastron (T)1975.93y± 0.12 Semi-major axis (a)0.998a± 0.015
Eccentricity (e)0.638± 0.005 Inclination (i)42.1°± 0.8 Longitude of periastron (ω)68.9°± 1.3
Node (Ω)0.5°± 1.1 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 0.746 178.9
2001 0.765 180.3
2002 0.783 181.6
2003 0.801 182.8
2004 0.818 184.0
2005 0.835 185.2
2006 0.851 186.3
2007 0.867 187.3
2008 0.882 188.3
2009 0.897 189.3
2010 0.912 190.3
2011 0.926 191.2
2012 0.939 192.1
2013 0.953 193.0
2014 0.965 193.8
2015 0.978 194.7
2016 0.990 195.5
2017 1.002 196.3
2018 1.013 197.0
2019 1.024 197.8
2020 1.035 198.5
2021 1.046 199.3
2022 1.056 200.0
2023 1.066 200.7
2024 1.075 201.3
2025 1.085 202.0
2026 1.094 202.7
2027 1.102 203.3
2028 1.111 204.0
2029 1.119 204.6
2030 1.127 205.2

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

grafico orbita





wds13461%2B0507a.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
13461+0507 STF1781 AB 2014 287 193 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2015 289 198 0.9 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2016 290 195 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1
13461+0507 STF1781 AB 2017 291 195 1.0 7.89 8.10 F8V+F0 NO 134606.75+050656.1

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