08538-4731 FIN 316

 
 
08h 53m 50.60s -47 31' 14.6" P.A. 22.5 sep 0.1 mag 6.10,6.10 Sp A9IV-V dist. 77.28 pc (252.09 l.y.)
 
 
Coord 2000
08538-4731
Discov num
FIN 316
Comp
Coord arcsec 2000
08 53 50.60 -47 31 14.6
Date first
1951
Date last
2015
Obs
27
Pa first
138
Pa last
298
P.A. Now (θ)
22.5°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
6.10
Mag sec
6.10
delta mag (ΔM)
0
Spectral class
A9IV-V (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-022
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.8
Precise sep
0.071
Constellation
Vela
SAO
220636
HIP
43671
Tycho2
8156-03114-1
HD
76360
HR
3551
CD
CD-47 4480
CP
CP-47 2886
Distance
77.28
Distance ly
252.09
last precise pa
297.8
last precise sep
0.071
 
 
ORBITAL ELEMENTS
 
 
Period (P)7.209y± 0.004 Periastron (T)2007.601y± 0.009 Semi-major axis (a)0.0781a± 0.0003
Eccentricity (e)0.253± 0.002 Inclination (i)11.1°± 1.6 Longitude of periastron (ω)106.8°± 8.7
Node (Ω)108.5°± 8.8 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.059 181.8
2001 0.063 265.7
2002 0.079 324.0
2003 0.092 3.3
2004 0.096 35.7
2005 0.092 67.8
2006 0.080 106.5
2007 0.062 165.3
2008 0.060 249.6
2009 0.076 313.9
2010 0.090 356.0
2011 0.096 29.2
2012 0.094 60.8
2013 0.083 97.3
2014 0.065 150.4
2015 0.058 232.2
2016 0.072 302.9
2017 0.087 348.2
2018 0.095 22.5
2019 0.095 54.0
2020 0.086 88.9
2021 0.069 137.0
2022 0.057 213.9
2023 0.069 290.8
2024 0.085 340.0
2025 0.094 15.8
2026 0.096 47.4
2027 0.089 80.9
2028 0.073 125.0
2029 0.058 195.7
2030 0.065 277.3

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

grafico orbita





wds08538-4731a.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
08538-4731 FIN 316 2006 20 114 0.1 6.10 6.10 A9IV-V NO 085350.60-473114.6
08538-4731 FIN 316 2009 21 327 0.1 6.10 6.10 A9IV-V NO 085350.60-473114.6
08538-4731 FIN 316 2010 22 28 0.1 6.10 6.10 A9IV-V NO 085350.60-473114.6
08538-4731 FIN 316 2011 21 31 0.1 6.10 6.10 A9IV-V NO 085350.60-473114.6
08538-4731 FIN 316 2013 23 104 0.1 6.10 6.10 A9IV-V NO 085350.60-473114.6
08538-4731 FIN 316 2015 26 234 0.1 6.10 6.10 A9IV-V NO 085350.60-473114.6

If you need more information about this double, apply for a data request form to the WDS.