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Doubles in session


Current system
13317-0219
HDS 1895
HD 117635


Nearby doubles
19' : 13328-0226
GWP2040

21' : 13330-0225
HLD 15AB

45' : 13323-0302
SLW 888

45' : 13331-0258
GWP2041

48' : 13322-0306
HDS1896

50' : 13306-0306
GWP2035

50' : 13283-0222
B 2753AB

56' : 13280-0223
GWP2028

67' : 13277-0246
BAL 225

82' : 13279-0318
GWP2025

88' : 13368-0139
HJ 1235

91' : 13257-0206
SIN 81AB

94' : 13254-0209
BAL 550

96' : 13256-0147
SLW 869

97' : 13253-0233
GWP2016AB

100' : 13262-0121
NSN 121

103' : 13378-0135
HJ 1237

109' : 13246-0153
LDS4357

109' : 13244-0219
SKF 988

110' : 13244-0223
LDS4356

111' : 13254-0122
OSO 53

111' : 13277-0352
GWP2023

112' : 13242-0206
STF1741

114' : 13242-0159
GLP 9

117' : 13301-0413
BVD 103

123' : 13385-0325
GWP2049



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.

13317-0219 HDS 1895 (HD 117635)

 
 
13h 31m 39.95s -02° 19' 02.7" P.A. 151.00 sep 0.1 mag 7.65,9.48 Sp G9V dist. 30.7 pc (100.14 l.y.)
 
 
Coord 2000 13317-0219 Discov num HDS1895 Comp Coord arcsec 2000 13 31 39.95 -02 19 02.7
Date first 2001 Date last 2022 Obs 33
Pa first 63 Pa last 150.9 P.A. Now (θ) 168.2° (calc)
Sep first 0.1 Sep last 0.133 Sep. Now (ρ) 0.113" (calc)
Mag pri 7.65 Mag sec 9.48 delta mag (ΔM) 1.83 Spectral class G9V (yellow)
Pri motion ra -855 Sec motion ra
Pri motion dec +268 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 117635 Constellation Virgo SAO 139384 HIP 65982
Tycho2 4966-00099-1 HD 117635 BD BD-01 2832 Distance 30.7
Distance ly 100.14
 
 
ORBITAL ELEMENTS
 
 
Period (P)3.24y± 0.008 Periastron (T)2023.51j± 0.002 Semi-major axis (a)0.0969a± 0.0015
Eccentricity (e)0.528± 0.002 Inclination (i)20.4°± 0.5 Longitude of periastron (ω)179.4°± 1.5
Node (Ω)129.2°± 1.5 Notesn ReferenceDoc2023d
Equinox2000 Last observation2021 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 163.3 0.119
2001 9.4 0.053
2002 110.8 0.139
2003 150.9 0.134
2004 281.4 0.047
2005 99.5 0.126
2006 140.6 0.144
2007 215.2 0.067
2008 84.8 0.107
2009 131.3 0.148
2010 183.9 0.094
2011 62.7 0.083
2012 122.2 0.147
2013 165.7 0.116
2014 20.3 0.057
2015 112.5 0.140
2016 152.8 0.132
2017 296.8 0.046
2018 101.5 0.128
2019 142.2 0.142
2020 223.0 0.063
2021 87.6 0.111
2022 132.8 0.148
2023 187.8 0.090
2024 67.2 0.087
2025 123.7 0.147
2026 168.2 0.113
2027 29.8 0.061
2028 114.2 0.142
2029 154.7 0.130
2030 312.6 0.046
2031 103.5 0.131
2032 143.9 0.141
2033 231.9 0.059
2034 90.3 0.114
2035 134.3 0.147
2036 192.1 0.085
2037 71.4 0.092
2038 125.2 0.148
2039 170.9 0.109
2040 38.2 0.065
2041 115.8 0.143
2042 156.7 0.127
2043 328.3 0.046
2044 105.4 0.133
2045 145.6 0.140
2046 242.1 0.055
2047 92.7 0.117
2048 135.9 0.146
2049 196.9 0.081
2050 75.2 0.096


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds13317-0219i.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic