Double Star Calculator - Orbit

Orbital Elements for WSI132

WDS:	WSI132	WDS ID/Discoverer
P:	17.800	Orbital period (years)
a:	0.265	Semi-major axis (arcseconds)
i:	138.9	Inclination (degrees)
Ω:	36.9	Longitude of ascending node (degrees)
T:	2020.969	Epoch of periastron passage (year)
e:	0.687	Eccentricity
ω:	372.9	Longitude of periastron (degrees)
Start-Year:	2016.1	Year
End-Year:	2033.9	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WSI132
Position:	163013.10-143949.6	Epoch-2000 right ascension and declination
WDS-ID:	16302-1440	WDS designation
Discoverer Code:	WSI132	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	80817	Hipparcos catalog number
V1:	13.6	Magnitude of the primary
V2:	15.6	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2021f	Reference

Double Star Orbit for WSI132

WDS 6th Orbit including measures of WSI132

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of WSI132

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.400   221.29
--------------------------
2016.10    0.350   188.11
2016.20    0.346   187.47
2016.30    0.341   186.81
2016.40    0.337   186.14
2016.50    0.332   185.44
2016.60    0.327   184.72
2016.70    0.323   183.99
2016.80    0.318   183.23
2016.90    0.312   182.44
2017.00    0.307   181.63
2017.10    0.302   180.80
2017.20    0.297   179.93
2017.30    0.291   179.03
2017.40    0.285   178.09
2017.50    0.280   177.12
2017.60    0.274   176.10
2017.70    0.268   175.04
2017.80    0.262   173.93
2017.90    0.255   172.77
2018.00    0.249   171.54
2018.10    0.243   170.26
2018.20    0.236   168.90
2018.30    0.230   167.47
2018.40    0.223   165.95
2018.50    0.216   164.33
2018.60    0.209   162.61
2018.70    0.202   160.77
2018.80    0.195   158.80
2018.90    0.188   156.67
2019.00    0.181   154.38
2019.10    0.173   151.89
2019.20    0.166   149.19
2019.30    0.159   146.24
2019.40    0.152   143.01
2019.50    0.144   139.45
2019.60    0.137   135.53
2019.70    0.130   131.19
2019.80    0.124   126.37
2019.90    0.118   121.03
2020.00    0.112   115.10
2020.10    0.106   108.55
2020.20    0.102   101.34
2020.30    0.097    93.47
2020.40    0.094    84.98
2020.50    0.091    75.90
2020.60    0.089    66.33
2020.70    0.087    56.30
2020.80    0.085    45.86
2020.90    0.083    34.94
2021.00    0.081    23.50
2021.10    0.080    11.47
2021.20    0.078   358.95
2021.30    0.078   346.21
2021.40    0.080   333.72
2021.50    0.083   322.01
2021.60    0.089   311.43
2021.70    0.095   302.16
2021.80    0.103   294.17
2021.90    0.111   287.33
2022.00    0.120   281.47
2022.10    0.129   276.42
2022.20    0.138   272.04
2022.30    0.147   268.21
2022.40    0.157   264.84
2022.50    0.166   261.84
2022.60    0.175   259.16
2022.70    0.184   256.74
2022.80    0.192   254.54
2022.90    0.201   252.53
2023.00    0.209   250.68
2023.10    0.218   248.98
2023.20    0.226   247.39
2023.30    0.234   245.92
2023.40    0.241   244.54
2023.50    0.249   243.24
2023.60    0.256   242.02
2023.70    0.263   240.87
2023.80    0.270   239.77
2023.90    0.277   238.73
2024.00    0.283   237.74
2024.10    0.290   236.80
2024.20    0.296   235.89
2024.30    0.302   235.02
2024.40    0.308   234.19
2024.50    0.314   233.38
2024.60    0.320   232.61
2024.70    0.325   231.86
2024.80    0.330   231.13
2024.90    0.335   230.43
2025.00    0.340   229.75
2025.10    0.345   229.09
2025.20    0.350   228.45
2025.30    0.355   227.82
2025.40    0.359   227.21
2025.50    0.363   226.61
2025.60    0.368   226.03
2025.70    0.372   225.46
2025.80    0.376   224.90
2025.90    0.379   224.36
2026.00    0.383   223.82
2026.10    0.387   223.30
2026.20    0.390   222.78
2026.30    0.393   222.28
2026.40    0.397   221.78
2026.50    0.400   221.29
2026.60    0.403   220.80
2026.70    0.406   220.33
2026.80    0.408   219.86
2026.90    0.411   219.39
2027.00    0.413   218.94
2027.10    0.416   218.48
2027.20    0.418   218.04
2027.30    0.420   217.59
2027.40    0.422   217.16
2027.50    0.424   216.72
2027.60    0.426   216.29
2027.70    0.428   215.87
2027.80    0.430   215.44
2027.90    0.431   215.02
2028.00    0.433   214.61
2028.10    0.434   214.19
2028.20    0.435   213.78
2028.30    0.437   213.37
2028.40    0.438   212.97
2028.50    0.439   212.56
2028.60    0.439   212.16
2028.70    0.440   211.75
2028.80    0.441   211.35
2028.90    0.442   210.95
2029.00    0.442   210.56
2029.10    0.442   210.16
2029.20    0.443   209.76
2029.30    0.443   209.36
2029.40    0.443   208.97
2029.50    0.443   208.57
2029.60    0.443   208.18
2029.70    0.443   207.78
2029.80    0.442   207.38
2029.90    0.442   206.98
2030.00    0.442   206.59
2030.10    0.441   206.19
2030.20    0.440   205.79
2030.30    0.440   205.39
2030.40    0.439   204.98
2030.50    0.438   204.58
2030.60    0.437   204.17
2030.70    0.436   203.76
2030.80    0.435   203.35
2030.90    0.433   202.94
2031.00    0.432   202.52
2031.10    0.430   202.11
2031.20    0.429   201.68
2031.30    0.427   201.26
2031.40    0.425   200.83
2031.50    0.424   200.40
2031.60    0.422   199.96
2031.70    0.420   199.52
2031.80    0.417   199.08
2031.90    0.415   198.63
2032.00    0.413   198.18
2032.10    0.410   197.72
2032.20    0.408   197.26
2032.30    0.405   196.78
2032.40    0.403   196.31
2032.50    0.400   195.83
2032.60    0.397   195.34
2032.70    0.394   194.84
2032.80    0.391   194.33
2032.90    0.388   193.82
2033.00    0.384   193.30
2033.10    0.381   192.77
2033.20    0.377   192.22
2033.30    0.374   191.67
2033.40    0.370   191.11
2033.50    0.366   190.54
2033.60    0.362   189.95
2033.70    0.358   189.35
2033.80    0.354   188.74
2033.90    0.350   188.11

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.

Acknowledgements

The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 17:28:31