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Doubles in session


Current system
00593-0040
A 1902
HD 5781


Nearby doubles
7' : 00594+0047
STF 80AB

15' : 00593+0055
BAL 949

27' : 01009-0052
HJL1008

33' : 01006-0014
RST4743

38' : 00572+0021
SHN 268

41' : 01021+0039
BAL 950

47' : 01023+0026
CBL 205

52' : 00561-0023
HDO 39

52' : 00559+0040
WAA 17

58' : 01028+0049
LDS5311

60' : 00554+0040
WAA 16

64' : 01029+0005
SKF2620

65' : 00536-0039
HDO 38

68' : 01033-0009
ITF 76

71' : 00592+0151
UC 479

76' : 01043+0027
OSW 64

79' : 01038+0122
STF 84AB

82' : 01047+0029
RST4744

88' : 00535-0041
TOB 359

93' : 00535+0006
LDS3209

94' : 00536+0002
OSW 25

95' : 00531+0100
BAL 948

97' : 00529-0038
LDS 29

99' : 01048+0135
A 2310

99' : 00576+0216
CVR 21

101' : 01044+0147
DOO 26



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.

00593-0040 A 1902 (HD 5781)

 
 
00h 59m 20.47s -00° 40' 28.3" P.A. 230.00 sep 0.4 mag 8.11,9.17 Sp F5 dist. 87.49 pc (285.39 l.y.)
 
 
Coord 2000 00593-0040 Discov num A  1902 Comp Coord arcsec 2000 00 59 20.47 -00 40 28.3
Date first 1908 Date last 2022 Obs 77
Pa first 199 Pa last 229.7 P.A. Now (θ) 226.1°
Sep first 0.3 Sep last 0.357 Sep. Now (ρ) 0.348"
Mag pri 8.11 Mag sec 9.17 delta mag (ΔM) 1.06 Spectral class F5 (yellow-white)
Pri motion ra +028 Sec motion ra
Pri motion dec -034 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 5781 Constellation Cetus SAO 129063 HIP 4619
Tycho2 4674-00743-1 HD 5781 ADS 819 BD BD-01 124
Distance 87.49 Distance ly 285.39
 
 
ORBITAL ELEMENTS
 
 
Period (P)93.61y± 1.24 Periastron (T)2057.69y± 0.6 Semi-major axis (a)0.31a± 0.003
Eccentricity (e)0.805± 0.006 Inclination (i)49.8°± 1.5 Longitude of periastron (ω)271.5°± 4
Node (Ω)118.1°± 4 Notesn ReferenceDoc2021c
Equinox Last observation2019 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 198.4 0.351
2001 199.5 0.352
2002 200.6 0.354
2003 201.8 0.355
2004 202.9 0.357
2005 204.0 0.358
2006 205.1 0.359
2007 206.2 0.360
2008 207.3 0.360
2009 208.4 0.361
2010 209.5 0.361
2011 210.5 0.361
2012 211.6 0.361
2013 212.7 0.361
2014 213.8 0.361
2015 214.9 0.361
2016 216.0 0.360
2017 217.1 0.360
2018 218.2 0.359
2019 219.3 0.358
2020 220.4 0.357
2021 221.5 0.355
2022 222.6 0.354
2023 223.8 0.352
2024 224.9 0.350
2025 226.1 0.348
2026 227.2 0.346
2027 228.4 0.344
2028 229.6 0.341
2029 230.9 0.339
2030 232.1 0.336
2031 233.4 0.332
2032 234.7 0.329
2033 236.0 0.326
2034 237.3 0.322
2035 238.7 0.318
2036 240.1 0.313
2037 241.6 0.309
2038 243.1 0.304
2039 244.7 0.298
2040 246.3 0.293
2041 248.0 0.287
2042 249.7 0.280
2043 251.6 0.273
2044 253.5 0.266
2045 255.6 0.258
2046 257.8 0.250
2047 260.1 0.241
2048 262.7 0.231
2049 265.5 0.220
2050 268.6 0.208


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds00593-0040d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic