22508-6543 HDS3246

 
 
22h 50m 47.15s -65 42' 51.8" P.A. 87.8 sep 0.09 mag 8.79,10.46 Sp G6V dist. 38.8 pc (126.57 l.y.)
 
 
Coord 2000
22508-6543
Discov num
HDS3246
Comp
Coord arcsec 2000
22 50 47.15 -65 42 51.8
Date first
1991
Date last
2017
Obs
11
Pa first
255
Pa last
91
P.A. Now (θ)
87.8°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.09"
Mag pri
8.79
Mag sec
10.46
delta mag (ΔM)
1.67
Spectral class
G6V (yellow)
Pri motion ra
+117
Sec motion ra
Pri motion dec
+083
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
91.1
Precise sep
0.133
Constellation
Tucana
HIP
112816
Tycho2
9124-01100-1
Gaia DR2
6392352869207924224
HD
216013
CP
CP-66 3714
Distance
38.8
Distance ly
126.57
last precise pa
91.1
last precise sep
0.133
 
 
ORBITAL ELEMENTS
 
 
Period (P)21.433y Periastron (T)2016.136y Semi-major axis (a)0.214a
Eccentricity (e)0.448 Inclination (i)92.4° Longitude of periastron (ω)140.2°
Node (Ω)272° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.026 295.6
2001 0.074 280.5
2002 0.119 277.3
2003 0.160 275.8
2004 0.197 274.9
2005 0.227 274.2
2006 0.251 273.7
2007 0.268 273.3
2008 0.277 272.9
2009 0.278 272.5
2010 0.267 272.2
2011 0.246 271.7
2012 0.210 271.2
2013 0.159 270.3
2014 0.089 268.3
2015 0.006 208.6
2016 0.082 94.5
2017 0.128 92.0
2018 0.125 90.3
2019 0.093 87.8
2020 0.048 81.5
2021 0.010 348.8
2022 0.053 283.7
2023 0.100 278.3
2024 0.143 276.3
2025 0.182 275.2
2026 0.215 274.5
2027 0.242 273.9
2028 0.262 273.5
2029 0.275 273.1
2030 0.279 272.7

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

grafico orbita





wds22508-6543a.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
22508-6543 HDS3246 1991 1 255 0.2 8.79 10.46 G6V 225047.15-654251.8
22508-6543 HDS3246 2008 2 274 0.3 8.79 10.46 G6V 225047.15-654251.8
22508-6543 HDS3246 2010 5 272 0.2 8.79 10.46 G6V 225047.15-654251.8
22508-6543 HDS3246 2013 9 269 0.1 8.79 10.46 G6V 225047.15-654251.8
22508-6543 HDS3246 2017 11 91 0.1 8.79 10.46 G6V 225047.15-654251.8

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