13117-2633 FIN 305

 
 
13h 11m 39.24s -26 33' 06.2" P.A. 65.80 sep 0.1 mag 7.20,7.43 Sp A5Vn dist. 110.62 pc (360.84 l.y.)
 
 
Coord 2000
13117-2633
Discov num
FIN 305
Comp
Coord arcsec 2000
13 11 39.24 -26 33 06.2
Date first
1933
Date last
2020
Obs
57
Pa first
96
Pa last
74
P.A. Now (θ)
65.8°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.07"
Mag pri
7.20
Mag sec
7.43
delta mag (ΔM)
0.23
Spectral class
A5Vn (white)
Pri motion ra
-068
Sec motion ra
Pri motion dec
+004
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
73.7
Precise sep
0.1
Constellation
Hydra
SAO
181446
HIP
64375
Tycho2
6707-01177-1
Gaia DR2
92967556480
HD
114576
HR
4978
CD
CD-25 9653
CP
CP-25 5109
Distance
110.62
Distance ly
360.84
last precise pa
73.7
last precise sep
0.1
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)19.97y Periastron (T)2022.103y Semi-major axis (a)0.095a
Eccentricity (e)0.941 Inclination (i)180° Longitude of periastron (ω)
Node (Ω)273.4° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.099 74.4
2001 0.067 66.2
2002 0.015 19.7
2003 0.056 124.5
2004 0.091 114.0
2005 0.117 108.9
2006 0.136 105.5
2007 0.152 102.8
2008 0.164 100.6
2009 0.173 98.7
2010 0.179 96.9
2011 0.183 95.2
2012 0.184 93.6
2013 0.183 92.0
2014 0.180 90.3
2015 0.174 88.6
2016 0.166 86.7
2017 0.155 84.5
2018 0.140 82.0
2019 0.122 78.8
2020 0.098 74.2
2021 0.066 65.8
2022 0.012 10.7
2023 0.057 124.0
2024 0.092 113.8
2025 0.117 108.8
2026 0.137 105.4
2027 0.152 102.8
2028 0.164 100.6
2029 0.173 98.6
2030 0.179 96.8

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






wds13117-2633d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)40.7y Periastron (T)2006.5y Semi-major axis (a)0.219a
Eccentricity (e)0.045 Inclination (i)98.6° Longitude of periastron (ω)304.5°
Node (Ω)93.3° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2019
label rho theta
2000 0.103 257.3
2001 0.073 248.8
2002 0.045 229.1
2003 0.032 178.3
2004 0.049 132.6
2005 0.077 115.7
2006 0.107 108.0
2007 0.135 103.6
2008 0.159 100.7
2009 0.180 98.5
2010 0.196 96.7
2011 0.207 95.2
2012 0.212 93.7
2013 0.213 92.3
2014 0.208 90.9
2015 0.197 89.4
2016 0.183 87.6
2017 0.164 85.5
2018 0.141 82.8
2019 0.116 78.9
2020 0.089 72.7
2021 0.061 61.1
2022 0.039 33.8
2023 0.036 342.8
2024 0.056 309.9
2025 0.083 296.2
2026 0.110 289.2
2027 0.136 285.0
2028 0.160 282.2
2029 0.181 280.0
2030 0.198 278.2

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






wds13117-2633g.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
13117-2633 FIN 305 2006 49 105 0.1 7.20 7.43 A5Vn NO 131139.24-263306.2
13117-2633 FIN 305 2009 50 99 0.2 7.20 7.43 A5Vn NO 131139.24-263306.2
13117-2633 FIN 305 2014 51 91 0.2 7.20 7.43 A5Vn NO 131139.24-263306.2
13117-2633 FIN 305 2017 52 83 0.1 7.20 7.43 A5Vn NO 131139.24-263306.2
13117-2633 FIN 305 2018 54 82 0.1 7.20 7.43 A5Vn NO 131139.24-263306.2
13117-2633 FIN 305 2019 56 77 0.1 7.20 7.43 A5Vn NO 131139.24-263306.2

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