Double Star Calculator - Orbit

Orbital Elements for WSI86

WDS:	WSI86	WDS ID/Discoverer
P:	14.910	Orbital period (years)
a:	0.2697	Semi-major axis (arcseconds)
i:	132.0	Inclination (degrees)
Ω:	13.1	Longitude of ascending node (degrees)
T:	2014.960	Epoch of periastron passage (year)
e:	0.502	Eccentricity
ω:	26.7	Longitude of periastron (degrees)
Start-Year:	2017.545	Year
End-Year:	2032.455	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WSI86
Position:	165325.26-202455.8	Epoch-2000 right ascension and declination
WDS-ID:	16534-2025	WDS designation
Discoverer Code:	WSI86	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	152311	HD catalog number
Hipparcos number:	82621	Hipparcos catalog number
V1:	5.9	Magnitude of the primary
V2:	11.3	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2020e	Reference

Double Star Orbit for WSI86

WDS 6th Orbit including measures of WSI86

-- 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 WSI86

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.222   129.48
--------------------------
2017.55    0.250   215.92
2017.64    0.258   214.34
2017.74    0.265   212.86
2017.84    0.273   211.45
2017.94    0.280   210.12
2018.04    0.286   208.85
2018.14    0.293   207.64
2018.24    0.299   206.48
2018.34    0.305   205.37
2018.44    0.311   204.30
2018.54    0.317   203.27
2018.64    0.322   202.27
2018.74    0.327   201.31
2018.84    0.332   200.37
2018.94    0.337   199.46
2019.04    0.341   198.58
2019.14    0.345   197.71
2019.24    0.349   196.87
2019.34    0.353   196.05
2019.44    0.357   195.24
2019.54    0.360   194.45
2019.64    0.363   193.68
2019.74    0.366   192.91
2019.84    0.369   192.16
2019.94    0.372   191.42
2020.04    0.374   190.69
2020.14    0.377   189.97
2020.24    0.379   189.26
2020.34    0.381   188.55
2020.44    0.382   187.86
2020.54    0.384   187.16
2020.64    0.385   186.48
2020.74    0.386   185.79
2020.84    0.387   185.11
2020.94    0.388   184.44
2021.04    0.389   183.76
2021.14    0.389   183.09
2021.24    0.390   182.42
2021.34    0.390   181.75
2021.44    0.390   181.08
2021.54    0.390   180.41
2021.64    0.389   179.74
2021.74    0.389   179.07
2021.84    0.388   178.40
2021.94    0.387   177.72
2022.04    0.387   177.05
2022.14    0.385   176.36
2022.24    0.384   175.68
2022.34    0.383   174.99
2022.44    0.381   174.29
2022.54    0.380   173.59
2022.64    0.378   172.88
2022.74    0.376   172.17
2022.84    0.374   171.44
2022.94    0.372   170.71
2023.04    0.369   169.97
2023.14    0.367   169.22
2023.24    0.364   168.46
2023.34    0.362   167.69
2023.44    0.359   166.90
2023.54    0.356   166.11
2023.64    0.353   165.30
2023.74    0.349   164.47
2023.84    0.346   163.63
2023.94    0.342   162.77
2024.04    0.339   161.90
2024.14    0.335   161.00
2024.24    0.331   160.09
2024.34    0.327   159.15
2024.44    0.323   158.19
2024.54    0.319   157.20
2024.64    0.315   156.19
2024.74    0.310   155.15
2024.84    0.306   154.08
2024.94    0.301   152.97
2025.04    0.297   151.84
2025.14    0.292   150.66
2025.24    0.287   149.45
2025.34    0.282   148.19
2025.44    0.277   146.89
2025.54    0.272   145.55
2025.64    0.267   144.15
2025.74    0.262   142.69
2025.84    0.257   141.18
2025.94    0.251   139.60
2026.04    0.246   137.96
2026.14    0.241   136.24
2026.24    0.235   134.45
2026.34    0.230   132.57
2026.44    0.225   130.61
2026.54    0.219   128.54
2026.64    0.214   126.38
2026.74    0.209   124.11
2026.84    0.204   121.73
2026.94    0.199   119.23
2027.04    0.194   116.59
2027.14    0.189   113.83
2027.24    0.185   110.92
2027.34    0.180   107.87
2027.44    0.176   104.67
2027.54    0.172   101.32
2027.64    0.169    97.82
2027.74    0.165    94.17
2027.84    0.162    90.38
2027.94    0.159    86.44
2028.04    0.157    82.38
2028.14    0.155    78.20
2028.24    0.153    73.91
2028.34    0.152    69.53
2028.44    0.151    65.09
2028.54    0.150    60.58
2028.64    0.149    56.03
2028.74    0.149    51.44
2028.84    0.148    46.83
2028.94    0.148    42.20
2029.04    0.147    37.53
2029.14    0.147    32.82
2029.24    0.145    28.06
2029.34    0.144    23.21
2029.44    0.142    18.24
2029.54    0.139    13.10
2029.64    0.136     7.74
2029.74    0.132     2.09
2029.84    0.128   356.07
2029.94    0.123   349.61
2030.04    0.118   342.63
2030.14    0.114   335.07
2030.24    0.110   326.94
2030.34    0.107   318.29
2030.44    0.105   309.27
2030.54    0.105   300.11
2030.64    0.107   291.10
2030.74    0.110   282.49
2030.84    0.115   274.48
2030.94    0.121   267.19
2031.04    0.128   260.64
2031.14    0.136   254.81
2031.24    0.144   249.63
2031.34    0.153   245.04
2031.44    0.162   240.94
2031.54    0.171   237.28
2031.64    0.180   233.99
2031.74    0.190   231.02
2031.84    0.199   228.32
2031.94    0.208   225.86
2032.04    0.216   223.60
2032.14    0.225   221.51
2032.24    0.233   219.57
2032.34    0.242   217.77
2032.44    0.249   216.08

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 17:31:38