13317-0219 HDS1895

 
 
13h 31m 39.95s -02 19' 02.7" P.A. 290.7 sep 0.04 mag 7.65,9.48 Sp G9V dist. 30.7 pc (100.14 l.y.)
 
 
Coord 2000
13317-0219
Discov num
HDS1895
Comp
Coord arcsec 2000
13 31 39.95 -02 19 02.7
Date first
1991
Date last
2015
Obs
22
Pa first
122
Pa last
119
P.A. Now (θ)
290.7°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.04"
Mag pri
7.65
Mag sec
9.48
delta mag (ΔM)
1.83
Spectral class
G9V (yellow)
Pri motion ra
-855
Sec motion ra
Pri motion dec
+268
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
119.2
Precise sep
0.147
Constellation
Virgo
HIP
65982
Tycho2
4966-00099-1
HD
117635
GL
NN 3788
BD
BD-01 2832
Distance
30.7
Distance ly
100.14
last precise pa
119.2
last precise sep
0.147
 
 
ORBITAL ELEMENTS
 
 
Period (P)3.2448y± 0.0052 Periastron (T)1994.324y± 0.023 Semi-major axis (a)0.0938a± 0.0034
Eccentricity (e)0.551± 0.012 Inclination (i)10°± 13 Longitude of periastron (ω)352.3°± 4.2
Node (Ω)315.2°± 4.5 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2011
label rho theta
2000 0.118 162.9
2001 0.055 17.7
2002 0.137 110.4
2003 0.132 150.4
2004 0.044 281.7
2005 0.126 99.1
2006 0.141 140.0
2007 0.068 211.7
2008 0.108 84.8
2009 0.145 130.4
2010 0.095 181.7
2011 0.085 63.7
2012 0.144 121.1
2013 0.116 164.1
2014 0.057 23.1
2015 0.138 111.3
2016 0.131 151.3
2017 0.043 290.7
2018 0.127 100.2
2019 0.141 140.8
2020 0.066 215.5
2021 0.110 86.2
2022 0.145 131.2
2023 0.093 183.6
2024 0.087 65.9
2025 0.144 121.9
2026 0.115 165.4
2027 0.059 28.0
2028 0.139 112.2
2029 0.130 152.3
2030 0.042 300.0

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

grafico orbita





wds13317-0219b.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
13317-0219 HDS1895 2006 2 148 0.1 7.65 9.48 G9V 133140.44-021905.0
13317-0219 HDS1895 2009 5 141 0.1 7.65 9.48 G9V 133140.44-021905.0
13317-0219 HDS1895 2010 7 147 0.1 7.65 9.48 G9V D 133140.44-021905.0
13317-0219 HDS1895 2011 16 67 0.1 7.65 9.48 G9V OD 133140.44-021905.0
13317-0219 HDS1895 2012 17 129 0.1 7.65 9.48 G9V OD 133140.44-021905.0
13317-0219 HDS1895 2013 18 174 0.1 7.65 9.48 G9V NOD 133140.44-021905.0
13317-0219 HDS1895 2014 21 236 0.1 7.65 9.48 G9V NO 133140.44-021905.0
13317-0219 HDS1895 2015 22 119 0.1 7.65 9.48 G9V NO 133140.44-021905.0

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