13145-2417 FIN 297AB

 
 
13h 14m 27.58s -24 17' 03.4" P.A. 34.7 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
2014
Obs
49
Pa first
333
Pa last
12
P.A. Now (θ)
34.7°
Sep first
0.3
Sep last
0.2
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 181476 13145-2417 FIN 297 AB 1931 2014 49 35 0.1 7.51 7.48 0.03 Y <===
Show 181476 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
11.5
Precise sep
0.152
Constellation
Hydra
SAO
181476
HIP
64603
Tycho2
6699-00595-1
HD
114993
ADS
8831
CD
CD-2310974
CP
CP-23 5710
Distance
100.1
Distance ly
326.53
last precise pa
11.5
last precise sep
0.152
 
 
ORBITAL ELEMENTS
 
 
Period (P)60.81y± 3.27 Periastron (T)1957.92y± 3.17 Semi-major axis (a)0.233a± 0.01
Eccentricity (e)0.691± 0.041 Inclination (i)66°± 1.7 Longitude of periastron (ω)295°± 2.2
Node (Ω)188.3°± 2.7 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.265 345.3
2001 0.265 346.7
2002 0.265 348.0
2003 0.264 349.4
2004 0.262 350.8
2005 0.259 352.1
2006 0.255 353.6
2007 0.250 355.1
2008 0.243 356.6
2009 0.235 358.3
2010 0.225 0.1
2011 0.213 2.0
2012 0.199 4.2
2013 0.182 6.9
2014 0.161 10.1
2015 0.135 14.4
2016 0.104 21.1
2017 0.066 34.7
2018 0.032 82.9
2019 0.050 160.0
2020 0.083 182.4
2021 0.103 193.3
2022 0.115 201.1
2023 0.120 207.9
2024 0.123 214.3
2025 0.123 220.5
2026 0.123 226.7
2027 0.122 233.0
2028 0.122 239.3
2029 0.122 245.7
2030 0.122 252.1

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

grafico orbita





wds13145-2417a.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

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