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Doubles in session


Current system
13306-4238
HDS 1891
HD 117383


Nearby doubles
10' : 13315-4235
UC 2552

14' : 13314-4228
SEE 180AB

23' : 13324-4229
WSP 130AB

30' : 13309-4209
SKF1588

33' : 13306-4311
CPO 371

45' : 13344-4224
SEE 182

47' : 13277-4312
I 400AB

47' : 13266-4223
UC 2537

48' : 13311-4151
COO 155AB

52' : 13345-4210
CVN 89AB

53' : 13264-4303
HJ 4587

54' : 13337-4320
KPP 289

57' : 13258-4258
DBR 171

58' : 13258-4301
DBR 173

59' : 13257-4259
DBR 170

59' : 13258-4303
DBR 172

59' : 13279-4329
DON 604

59' : 13255-4255
DBR 169

62' : 13354-4308
UC 2563

62' : 13254-4300
DBR 179

64' : 13257-4311
SHN 174

65' : 13251-4300
DBR 167

65' : 13250-4258
DBR 165

65' : 13309-4343
I 1569

66' : 13251-4304
DBR 166

67' : 13252-4307
DBR 168



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

13306-4238 HDS 1891 (HD 117383)

 
 
13h 30m 36.43s -42° 37' 50.5" P.A. 320.00 sep 0.2 mag 10.01,11.09 Sp K4V dist. 32.66 pc (106.54 l.y.)
 
 
Coord 2000 13306-4238 Discov num HDS1891 Comp Coord arcsec 2000 13 30 36.43 -42 37 50.5
Date first 1991 Date last 2023 Obs 13
Pa first 126 Pa last 319.6 P.A. Now (θ) 274°
Sep first 0.2 Sep last 0.186 Sep. Now (ρ) 0.176"
Mag pri 10.01 Mag sec 11.09 delta mag (ΔM) 1.08 Spectral class K4V (yellow-orange)
Pri motion ra -132 Sec motion ra
Pri motion dec -115 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 117383 Constellation Centaurus HIP 65906 Tycho2 7796-00866-1
Gaia DR2 6088772073787597568 HD 117383 CD CD-41 7889 CP CP-41 6366
Distance 32.66 Distance ly 106.54
 
 
ORBITAL ELEMENTS
 
 
Period (P)12.23y± 0.06 Periastron (T)2014.49y± 0.03 Semi-major axis (a)0.1794a± 0.0012
Eccentricity (e)0.185± 0.004 Inclination (i)163.1°± 1.7 Longitude of periastron (ω)236.1°± 4.5
Node (Ω)73.6°± 4.7 Notes ReferenceTok2024b
Equinox2000 Last observation2024 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 283.8 0.170
2001 250.2 0.156
2002 210.1 0.144
2003 165.9 0.143
2004 126.1 0.158
2005 94.7 0.179
2006 69.5 0.196
2007 47.4 0.205
2008 26.5 0.207
2009 5.4 0.203
2010 343.1 0.196
2011 318.6 0.185
2012 290.8 0.173
2013 258.5 0.159
2014 219.9 0.146
2015 176.0 0.142
2016 134.5 0.154
2017 101.3 0.174
2018 74.9 0.192
2019 52.3 0.203
2020 31.3 0.207
2021 10.4 0.205
2022 348.4 0.198
2023 324.5 0.188
2024 297.5 0.176
2025 266.4 0.162
2026 229.3 0.148
2027 186.2 0.141
2028 143.4 0.150
2029 108.2 0.170
2030 80.5 0.189
2031 57.3 0.202
2032 36.0 0.207
2033 15.2 0.206
2034 353.6 0.200
2035 330.2 0.190
2036 304.1 0.179
2037 274.0 0.166
2038 238.5 0.151
2039 196.5 0.142
2040 152.7 0.147
2041 115.5 0.165
2042 86.4 0.185
2043 62.4 0.199
2044 40.8 0.206
2045 20.0 0.206
2046 358.7 0.201
2047 335.8 0.193
2048 310.4 0.182
2049 281.4 0.169
2050 247.2 0.155


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds13306-4238b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic