09252-1258 WSI  73

 
 
09h 25m 05.39s -12 58' 00.5" P.A. 109.7 sep 0.08 mag 10.10,11.10 Sp K1/2V dist. 43.4 pc (141.57 l.y.)
 
 
Coord 2000
09252-1258
Discov num
WSI  73
Comp
Coord arcsec 2000
09 25 05.39 -12 58 00.5
Date first
2001
Date last
2015
Obs
11
Pa first
285
Pa last
104
P.A. Now (θ)
109.7°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0.08"
Mag pri
10.10
Mag sec
11.10
delta mag (ΔM)
1
Spectral class
K1/2V (yellow-orange)
Pri motion ra
+556
Sec motion ra
Pri motion dec
-569
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
103.6
Precise sep
0.044
Constellation
Hydra
HIP
46191
Tycho2
5467-01584-1
HD
81408
BD
BD-12 2889
Distance
43.4
Distance ly
141.57
last precise pa
91.2
last precise sep
0.049
 
 
ORBITAL ELEMENTS
 
 
Period (P)13.15y± 0.61 Periastron (T)2018.94y± 1.4 Semi-major axis (a)0.1443a± 0.0304
Eccentricity (e)0.61 Inclination (i)87°± 1.5 Longitude of periastron (ω)52.2°± 19.7
Node (Ω)93.6°± 1.5 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.120 278.5
2001 0.084 280.9
2002 0.044 287.2
2003 0.009 15.9
2004 0.046 85.3
2005 0.072 91.8
2006 0.010 112.2
2007 0.098 272.3
2008 0.152 273.8
2009 0.176 274.7
2010 0.180 275.4
2011 0.171 276.2
2012 0.152 277.1
2013 0.124 278.3
2014 0.090 280.4
2015 0.050 285.6
2016 0.010 336.5
2017 0.040 83.4
2018 0.071 91.1
2019 0.028 98.9
2020 0.086 271.9
2021 0.146 273.6
2022 0.173 274.6
2023 0.180 275.3
2024 0.173 276.0
2025 0.155 276.9
2026 0.129 278.1
2027 0.095 280.0
2028 0.056 284.4
2029 0.015 313.3
2030 0.034 80.8

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

grafico orbita





wds09252-1258e.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
09252-1258 WSI 73 2009 1 275 0.2 10.10 11.10 K1/2V 092505.39-125800.5
09252-1258 WSI 73 2010 3 277 0.2 10.10 11.10 K1/2V 092505.39-125800.5
09252-1258 WSI 73 2013 6 279 0.1 10.10 11.10 K1/2V 092505.39-125800.5
09252-1258 WSI 73 2015 10 94 0.0 10.10 11.10 K1/2V O 092505.39-125800.5

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