13145-2417 FIN 297AB

 
 
13h 14m 27.58s -24 17' 03.4" P.A. 180.9 sep 0.07 mag 7.51,7.48 Sp F0V dist. 100.1 pc (326.53 l.y.)
 
 
Coord 2000
13145-2417
Discov num
FIN 297
Comp
AB
Coord arcsec 2000
13 14 27.58 -24 17 03.4
Date first
1931
Date last
2018
Obs
52
Pa first
333
Pa last
154
P.A. Now (θ)
180.9°
Sep first
0.3
Sep last
0.0
Sep. Now (ρ)
0.07"
Mag pri
7.51
Mag sec
7.48
delta mag (ΔM)
0.03
Spectral class
F0V (yellow-white)
Pri motion ra
-071
Sec motion ra
Pri motion dec
+011
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
13145-2417 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 13145-2417 FIN 297 AB 1931 2018 52 181 0.1 7.51 7.48 0.03 Y <===
Show 13145-2417 STN 28 AB,C 1879 1999 13 331 12.1 6.72 11.54 4.82
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
154
Precise sep
0.035
Constellation
Hydra
SAO
181476
HIP
64603
Tycho2
6699-00595-1
Gaia DR2
89692803584
HD
114993
ADS
8831
CD
CD-2310974
CP
CP-23 5710
Distance
100.1
Distance ly
326.53
last precise pa
154
last precise sep
0.035
 
 
ORBITAL ELEMENTS
 
 
Period (P)60.38y Periastron (T)2018.15y Semi-major axis (a)0.245a
Eccentricity (e)0.732 Inclination (i)67.3° Longitude of periastron (ω)111.5°
Node (Ω)10.8° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.263 345.5
2001 0.263 346.8
2002 0.263 348.2
2003 0.262 349.5
2004 0.261 350.9
2005 0.258 352.3
2006 0.254 353.7
2007 0.249 355.2
2008 0.243 356.8
2009 0.235 358.4
2010 0.226 0.2
2011 0.214 2.1
2012 0.199 4.3
2013 0.182 6.9
2014 0.160 10.1
2015 0.132 14.6
2016 0.097 21.8
2017 0.053 39.9
2018 0.029 131.8
2019 0.069 180.9
2020 0.097 194.4
2021 0.112 202.9
2022 0.120 209.8
2023 0.124 216.1
2024 0.125 222.1
2025 0.126 228.1
2026 0.126 234.0
2027 0.125 240.0
2028 0.125 246.0
2029 0.126 252.0
2030 0.127 257.9

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






wds13145-2417e.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
13145-2417 FIN 297 AB 2006 46 354 0.3 7.51 7.48 F0V NO 131427.58-241703.4
13145-2417 FIN 297 AB 2008 48 358 0.2 7.51 7.48 F0V NO 131427.58-241703.4
13145-2417 FIN 297 AB 2013 49 7 0.2 7.51 7.48 F0V NO 131427.58-241703.4
13145-2417 FIN 297 AB 2014 49 12 0.2 7.51 7.48 F0V NO 131427.58-241703.4
13145-2417 FIN 297 AB 2017 51 84 0.0 7.51 7.48 F0V NO 131427.58-241703.4

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