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Doubles in session


Current system
01559+0151
STF 186
NSV667


Nearby doubles
8' : 01556+0146
BU 1367

22' : 01571+0141
A 2409

25' : 01548+0208
CVR1088

27' : 01544+0136
CVR1087

58' : 01528+0117
GWP 233

64' : 01560+0046
RST5186

67' : 01554+0257
A 2407

68' : 01571+0046
WSP 71

70' : 01583+0250
GWP 245

74' : 02001+0115
BAL 954

74' : 01517+0113
A 2406AB

78' : 01570+0035
GRV 106

79' : 01546+0035
BAL 953

80' : 01553+0032
CVR1089

85' : 02013+0218
CLZ 19

86' : 01537-0032
SKF 844

87' : 01594+0258
A 2410

89' : 01506+0231
HDO 54AB

90' : 01598-0043
A 1922

90' : 01518-0046
CVR1084

92' : 02020+0154
LDS3337

93' : 01581-0025
DEA 28AB

93' : 02003-0046
CVR1091

95' : 02017-0645
CAB 19

96' : 02011+0055
KPP3473AB

97' : 01533+0022
SKF 843



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.

01559+0151 STF 186 (NSV667)

 
 
01h 55m 53.80s +01° 50' 59.6" P.A. 80.00 sep 0.6 mag 6.79,6.84 Sp G0V+F7V dist. 39.89 pc (130.12 l.y.)
 
 
Coord 2000 01559+0151 Discov num STF 186 Comp Coord arcsec 2000 01 55 53.80 +01 50 59.6
Date first 1825 Date last 2023 Obs 474
Pa first 240 Pa last 79.7 P.A. Now (θ) 81°
Sep first 1.4 Sep last 0.555 Sep. Now (ρ) 0.532"
Mag pri 6.79 Mag sec 6.84 delta mag (ΔM) 0.05 Spectral class G0V+F7V (yellow/yellow-white)
Pri motion ra +164 Sec motion ra +164
Pri motion dec +189 Sec motion dec +189
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV667 Constellation Cetus SAO 110235 HIP 8998
Tycho2 0030-01344-1 Gaia DR2 2511415438379352192 HD 11803 HR 560
GC 2326 ADS 1538 BD BD+01 347 Distance 39.89
Distance ly 130.12
 
 
ORBITAL ELEMENTS
 
 
Period (P)167.7y± 3.1 Periastron (T)1893.8y± 3.1 Semi-major axis (a)1.048a± 0.035
Eccentricity (e)0.717± 0.057 Inclination (i)74.6°± 2.4 Longitude of periastron (ω)44.3°± 3.5
Node (Ω)220.07°± 0.65 Notesn ReferenceMsn2023
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 61.6 1.026
2001 62.0 1.009
2002 62.4 0.992
2003 62.9 0.974
2004 63.4 0.956
2005 63.9 0.938
2006 64.4 0.919
2007 64.9 0.901
2008 65.4 0.882
2009 66.0 0.862
2010 66.6 0.843
2011 67.2 0.823
2012 67.9 0.804
2013 68.6 0.783
2014 69.3 0.763
2015 70.1 0.743
2016 70.9 0.722
2017 71.8 0.701
2018 72.7 0.680
2019 73.7 0.659
2020 74.7 0.637
2021 75.8 0.616
2022 77.0 0.595
2023 78.3 0.573
2024 79.7 0.551
2025 81.2 0.530
2026 82.8 0.508
2027 84.5 0.487
2028 86.5 0.466
2029 88.6 0.445
2030 90.9 0.424
2031 93.4 0.404
2032 96.2 0.384
2033 99.4 0.365
2034 102.8 0.347
2035 106.6 0.330
2036 110.8 0.314
2037 115.5 0.300
2038 120.5 0.287
2039 126.0 0.277
2040 131.9 0.269
2041 138.1 0.263
2042 144.5 0.260
2043 150.9 0.260
2044 157.3 0.263
2045 163.5 0.268
2046 169.5 0.276
2047 175.0 0.285
2048 180.2 0.296
2049 185.0 0.309
2050 189.4 0.321


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds01559%2B0151d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic