09313-1329 KUI  41

 
 
09h 31m 19.43s -13 29' 19.3" P.A. 216.7 sep 0.55 mag 10.74,10.94 Sp dM4 dist. 10.01 pc (32.65 l.y.)
 
 
Coord 2000
09313-1329
Discov num
KUI  41
Comp
Coord arcsec 2000
09 31 19.43 -13 29 19.3
Date first
1942
Date last
2017
Obs
26
Pa first
239
Pa last
228
P.A. Now (θ)
216.7°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.55"
Mag pri
10.74
Mag sec
10.94
delta mag (ΔM)
0.2
Spectral class
dM4
Pri motion ra
+760
Sec motion ra
Pri motion dec
+070
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
228.3
Precise sep
0.618
Cdsa2 id
KUI 41
Constellation
Hydra
HIP
46706
Tycho2
5472-00348-1
GL
Gl 352A
BD
BD-12 2918
Ra deg
9.522063888888889
De deg
-13.488694444444443
Distance
10.01
Distance ly
32.65
last precise pa
228.3
last precise sep
0.618
 
 
ORBITAL ELEMENTS
 
 
Period (P)18.38y± 0.11 Periastron (T)2002.17y± 0.03 Semi-major axis (a)0.647a± 0.002
Eccentricity (e)0.335± 0.004 Inclination (i)139.9°± 0.2 Longitude of periastron (ω)105.3°± 0.6
Node (Ω)230.8°± 0.9 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.510 208.7
2001 0.389 178.8
2002 0.332 130.1
2003 0.407 84.5
2004 0.508 56.1
2005 0.574 36.1
2006 0.606 19.3
2007 0.621 3.6
2008 0.628 348.5
2009 0.637 333.7
2010 0.651 319.4
2011 0.669 305.8
2012 0.690 293.0
2013 0.709 281.0
2014 0.721 269.4
2015 0.718 258.1
2016 0.695 246.3
2017 0.642 233.1
2018 0.553 216.7
2019 0.434 192.2
2020 0.338 150.4
2021 0.368 99.5
2022 0.473 65.5
2023 0.553 43.2
2024 0.597 25.5
2025 0.617 9.5
2026 0.625 354.2
2027 0.633 339.2
2028 0.645 324.8
2029 0.662 310.9
2030 0.682 297.8

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

grafico orbita





wds09313-1329a.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
09313-1329 KUI 41 1996 14 265 0.6 10.74 10.94 dM4 NOD 093119.43-132919.3
09313-1329 KUI 41 2010 15 319 0.7 10.74 10.94 dM4 NOD 093119.43-132919.3
09313-1329 KUI 41 2013 18 279 0.7 10.74 10.94 dM4 NOD 093119.43-132919.3
09313-1329 KUI 41 2014 21 266 0.7 10.74 10.94 dM4 NO 093119.43-132919.3
09313-1329 KUI 41 2015 22 247 0.7 10.74 10.94 dM4 NO 093119.43-132919.3
09313-1329 KUI 41 2017 26 228 0.6 10.74 10.94 dM4 NO 093119.43-132919.3

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