Double Star Calculator - Orbit

Orbital Elements for WSI113

WDS:	WSI113	WDS ID/Discoverer
P:	11.637	Orbital period (years)
a:	0.3088	Semi-major axis (arcseconds)
i:	108.43	Inclination (degrees)
Ω:	188.87	Longitude of ascending node (degrees)
T:	2008.206	Epoch of periastron passage (year)
e:	0.29482	Eccentricity
ω:	89.0	Longitude of periastron (degrees)
Start-Year:	2019.18135	Year
End-Year:	2030.81865	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WSI113
Position:	122857.59+082531.9	Epoch-2000 right ascension and declination
WDS-ID:	12290+0826	WDS designation
Discoverer Code:	WSI113	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	60910	Hipparcos catalog number
V1:	12.2	Magnitude of the primary
V2:	13.8	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Msn2023	Reference

Double Star Orbit for WSI113

WDS 6th Orbit including measures of WSI113

-- 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 WSI113

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.154   240.79
--------------------------
2019.18    0.155   167.58
2019.28    0.138   163.42
2019.38    0.122   158.13
2019.48    0.106   151.23
2019.58    0.091   141.98
2019.68    0.079   129.51
2019.78    0.071   113.39
2019.88    0.069    94.89
2019.98    0.074    77.11
2020.08    0.084    62.54
2020.18    0.097    51.57
2020.28    0.113    43.44
2020.38    0.129    37.32
2020.48    0.146    32.57
2020.58    0.162    28.79
2020.68    0.177    25.69
2020.78    0.192    23.08
2020.88    0.206    20.84
2020.98    0.220    18.87
2021.08    0.232    17.12
2021.18    0.243    15.53
2021.28    0.253    14.08
2021.38    0.262    12.73
2021.48    0.269    11.47
2021.58    0.276    10.27
2021.68    0.282     9.13
2021.78    0.287     8.03
2021.88    0.291     6.97
2021.98    0.294     5.93
2022.08    0.296     4.90
2022.18    0.298     3.89
2022.28    0.298     2.89
2022.38    0.298     1.89
2022.48    0.297     0.88
2022.58    0.296   359.87
2022.68    0.293   358.84
2022.78    0.291   357.80
2022.88    0.287   356.73
2022.98    0.283   355.64
2023.08    0.279   354.51
2023.18    0.274   353.35
2023.28    0.269   352.14
2023.38    0.263   350.88
2023.48    0.257   349.57
2023.58    0.251   348.19
2023.68    0.244   346.74
2023.78    0.238   345.20
2023.88    0.231   343.58
2023.98    0.223   341.85
2024.08    0.216   340.00
2024.18    0.208   338.02
2024.28    0.201   335.89
2024.38    0.193   333.60
2024.48    0.186   331.12
2024.58    0.178   328.43
2024.68    0.171   325.51
2024.78    0.164   322.35
2024.88    0.158   318.91
2024.98    0.151   315.17
2025.08    0.146   311.12
2025.18    0.140   306.76
2025.28    0.136   302.09
2025.38    0.132   297.12
2025.48    0.129   291.90
2025.58    0.127   286.49
2025.68    0.126   280.95
2025.78    0.127   275.38
2025.88    0.128   269.86
2025.98    0.130   264.47
2026.08    0.133   259.30
2026.18    0.137   254.39
2026.28    0.141   249.78
2026.38    0.147   245.48
2026.48    0.153   241.49
2026.58    0.159   237.82
2026.68    0.166   234.43
2026.78    0.173   231.31
2026.88    0.180   228.44
2026.98    0.187   225.80
2027.08    0.195   223.35
2027.18    0.202   221.09
2027.28    0.210   218.99
2027.38    0.217   217.04
2027.48    0.224   215.21
2027.58    0.232   213.49
2027.68    0.239   211.88
2027.78    0.245   210.36
2027.88    0.252   208.92
2027.98    0.258   207.55
2028.08    0.264   206.24
2028.18    0.269   204.98
2028.28    0.274   203.77
2028.38    0.279   202.61
2028.48    0.283   201.48
2028.58    0.286   200.38
2028.68    0.289   199.30
2028.78    0.292   198.25
2028.88    0.294   197.21
2028.98    0.295   196.18
2029.08    0.295   195.15
2029.18    0.295   194.13
2029.28    0.294   193.10
2029.38    0.292   192.06
2029.48    0.289   191.00
2029.58    0.285   189.92
2029.68    0.280   188.80
2029.78    0.275   187.64
2029.88    0.268   186.43
2029.98    0.260   185.15
2030.08    0.251   183.79
2030.18    0.241   182.32
2030.28    0.230   180.72
2030.38    0.218   178.95
2030.48    0.205   176.96
2030.58    0.191   174.70
2030.68    0.176   172.06
2030.78    0.161   168.91

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 16:46:49