10388-4245 FIN 338

 
 
10h 38m 50.33s -42 45' 12.3" P.A. 217.30 sep 0.1 mag 6.82,7.20 Sp Am+Am: dist. 198.02 pc (645.94 l.y.)
 
 
Coord 2000
10388-4245
Discov num
FIN 338
Comp
Coord arcsec 2000
10 38 50.33 -42 45 12.3
Date first
1956
Date last
2018
Obs
21
Pa first
45
Pa last
204
P.A. Now (θ)
217.3°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.09"
Mag pri
6.82
Mag sec
7.20
delta mag (ΔM)
0.38
Spectral class
Am+Am: (white/white)
Pri motion ra
-016
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
204.2
Precise sep
0.067
Constellation
Vela
SAO
222222
HIP
52112
Tycho2
7718-01520-1
Gaia DR2
5391976851928453504
HD
92328
HR
4175
CD
CD-42 6390
CP
CP-42 4761
Distance
198.02
Distance ly
645.94
last precise pa
204.2
last precise sep
0.067
 
 
ORBITAL ELEMENTS
 
 
Period (P)80y Periastron (T)2021.7y± 2.1 Semi-major axis (a)0.156a± 0.008
Eccentricity (e)0.454± 0.041 Inclination (i)97°± 2 Longitude of periastron (ω)187.6°± 8.4
Node (Ω)37.1°± 0.8 Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation2018
label rho theta
2000 0.133 29.8
2001 0.124 29.1
2002 0.114 28.2
2003 0.104 27.2
2004 0.094 26.0
2005 0.083 24.5
2006 0.072 22.5
2007 0.060 19.7
2008 0.049 15.7
2009 0.037 9.2
2010 0.027 357.1
2011 0.018 331.5
2012 0.017 288.0
2013 0.024 256.1
2014 0.034 241.0
2015 0.045 233.2
2016 0.056 228.4
2017 0.065 225.1
2018 0.074 222.7
2019 0.080 220.7
2020 0.084 219.0
2021 0.085 217.3
2022 0.084 215.7
2023 0.078 213.9
2024 0.071 211.7
2025 0.061 209.0
2026 0.049 205.0
2027 0.037 198.4
2028 0.024 185.0
2029 0.015 151.0
2030 0.017 97.2


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



 
 


wds10419-7811a.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
10388-4245 FIN 338 2006 15 20 0.1 6.82 7.20 Am+Am: 103850.33-424512.3
10388-4245 FIN 338 2017 18 222 0.1 6.82 7.20 Am+Am: 103850.33-424512.3
10388-4245 FIN 338 2018 21 204 0.1 6.82 7.20 Am+Am: 103850.33-424512.3

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