13320-6519 FIN 369

 
 
13H 31M 57.83S -65 19' 18.5" P.A. 8.8 SEP 0.14 MAG 7.36,7.54 SP A8/9IV DIST. 82.85 PC (270.26 L.Y.)
 
 
Coord 2000
13320-6519
Discov num
FIN 369
Comp
Coord arcsec 2000
13 31 57.83 -65 19 18.5
Date first
1960
Date last
2015
Obs
19
Pa first
56
Pa last
355
P.A. Now (θ)
8.8°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.14"
Mag pri
7.36
Mag sec
7.54
delta mag (ΔM)
0.18
Spectral class
A8/9IV (white)
Pri motion ra
-062
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Musca
SAO
252345
HIP
66005
Tycho2
8999-02691-1
HD
117432
CP
CP-64 2441
Distance
82.85
Distance ly
270.26
last precise pa
355.2
last precise sep
0.121
 
 
ORBITAL ELEMENTS
 
 
Period (P)24.786y± 0.3 Periastron (T)2021.716y± 1.5 Semi-major axis (a)0.176a± 0.012
Eccentricity (e)0.473± 0.06 Inclination (i)75.2°± 2 Longitude of periastron (ω)81.4°± 5
Node (Ω)16.6°± 2 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.148 196.7
2001 0.164 200.8
2002 0.170 204.4
2003 0.167 208.0
2004 0.159 211.8
2005 0.146 216.1
2006 0.131 221.4
2007 0.114 228.2
2008 0.096 237.5
2009 0.080 250.6
2010 0.069 269.1
2011 0.066 292.0
2012 0.071 314.1
2013 0.084 331.1
2014 0.100 343.1
2015 0.116 351.8
2016 0.131 358.4
2017 0.141 3.8
2018 0.144 8.8
2019 0.137 13.8
2020 0.113 20.2
2021 0.066 33.3
2022 0.025 123.4
2023 0.078 182.3
2024 0.124 192.4
2025 0.152 197.7
2026 0.166 201.6
2027 0.170 205.2
2028 0.166 208.8
2029 0.156 212.7
2030 0.143 217.2

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic