22384-6523 HDS3215

 
 
22h 38m 29.56s -65 22' 42.4" P.A. 85.2 sep 0.86 mag 12.13,12.26 dist. 13.18 pc (42.99 l.y.)
 
 
Coord 2000
22384-6523
Discov num
HDS3215
Comp
Coord arcsec 2000
22 38 29.56 -65 22 42.4
Date first
1991
Date last
2014
Obs
6
Pa first
16
Pa last
115
P.A. Now (θ)
85.2°
Sep first
0.8
Sep last
0.9
Sep. Now (ρ)
0.86"
Mag pri
12.13
Mag sec
12.26
delta mag (ΔM)
0.13
Spectral class
Pri motion ra
+833
Sec motion ra
Pri motion dec
-160
Sec motion dec
Notes
O V (Orbital solution, Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
114.6
Precise sep
0.881
Constellation
Tucana
HIP
111766
GL
Gl 865
Distance
13.18
Distance ly
42.99
last precise pa
114.6
last precise sep
0.881
 
 
ORBITAL ELEMENTS
 
 
Period (P)35.666y Periastron (T)1997.052y Semi-major axis (a)0.736a
Eccentricity (e)0.211 Inclination (i)180° Longitude of periastron (ω)
Node (Ω)293.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.612 248.4
2001 0.634 234.6
2002 0.659 221.8
2003 0.687 210.0
2004 0.715 199.2
2005 0.742 189.1
2006 0.769 179.7
2007 0.793 171.0
2008 0.816 162.7
2009 0.836 154.9
2010 0.853 147.4
2011 0.867 140.1
2012 0.878 133.1
2013 0.885 126.2
2014 0.890 119.5
2015 0.891 112.7
2016 0.889 106.0
2017 0.884 99.2
2018 0.875 92.3
2019 0.864 85.2
2020 0.849 77.9
2021 0.831 70.4
2022 0.811 62.4
2023 0.788 54.1
2024 0.763 45.2
2025 0.736 35.7
2026 0.708 25.4
2027 0.680 14.3
2028 0.653 2.3
2029 0.629 349.3
2030 0.608 335.3

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

grafico orbita





wds22384-6523a.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
22384-6523 HDS3215 1991 1 16 0.8 12.13 12.26 223828.59-652241.2
22384-6523 HDS3215 2008 2 156 0.8 12.13 12.26 D 223828.59-652241.2
22384-6523 HDS3215 2010 3 142 0.9 12.13 12.26 V 223828.59-652241.2
22384-6523 HDS3215 2014 6 115 0.9 12.13 12.26 V 223828.59-652241.2

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