Double Star Calculator - Orbit

Orbital Elements for FIN307
WDS: FIN307 WDS ID/Discoverer
P: 12.156 Orbital period (years)
a: 0.173 Semi-major axis (arcseconds)
i: 75.2 Inclination (degrees)
Ω: 95.0 Longitude of ascending node (degrees)
T: 2006.452 Epoch of periastron passage (year)
e: 0.005 Eccentricity
ω: 34.2 Longitude of periastron (degrees)
Start-Year: 2018.922 Year
End-Year: 2031.078 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for FIN307
Position: 215755.03-545933.2 Epoch-2000 right ascension and declination
WDS-ID: 21579-5500 WDS designation
Discoverer Code: FIN307 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 208450 HD catalog number
Hipparcos number: 108431 Hipparcos catalog number
V1: 4.80 Magnitude of the primary
V2: 5.96 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2020 Date of last observation
Orbit grade: 1 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Doc2025b Reference

Double Star Orbit for FIN307



WDS 6th Orbit including measures of FIN307

-- 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 FIN307
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.045   355.15
--------------------------
2018.92    0.128   108.67
2019.02    0.123   110.11
2019.12    0.117   111.69
2019.22    0.110   113.45
2019.32    0.104   115.43
2019.42    0.097   117.66
2019.52    0.091   120.22
2019.62    0.084   123.19
2019.72    0.077   126.67
2019.82    0.071   130.79
2019.92    0.065   135.73
2020.02    0.059   141.69
2020.12    0.054   148.89
2020.22    0.049   157.50
2020.32    0.046   167.54
2020.42    0.044   178.70
2020.52    0.044   190.32
2020.62    0.046   201.55
2020.72    0.049   211.68
2020.82    0.053   220.40
2020.92    0.058   227.70
2021.02    0.064   233.74
2021.12    0.070   238.75
2021.22    0.077   242.92
2021.32    0.084   246.44
2021.42    0.090   249.44
2021.52    0.097   252.03
2021.62    0.104   254.28
2021.72    0.110   256.27
2021.82    0.116   258.04
2021.92    0.122   259.64
2022.02    0.128   261.08
2022.12    0.134   262.40
2022.22    0.139   263.62
2022.32    0.144   264.76
2022.42    0.148   265.82
2022.52    0.153   266.82
2022.62    0.157   267.77
2022.72    0.160   268.67
2022.82    0.163   269.53
2022.92    0.166   270.37
2023.02    0.168   271.18
2023.12    0.170   271.97
2023.22    0.172   272.74
2023.32    0.173   273.51
2023.42    0.173   274.26
2023.52    0.174   275.01
2023.62    0.174   275.76
2023.72    0.173   276.52
2023.82    0.172   277.28
2023.92    0.170   278.05
2024.02    0.168   278.84
2024.12    0.166   279.65
2024.22    0.163   280.48
2024.32    0.160   281.35
2024.42    0.157   282.25
2024.52    0.153   283.19
2024.62    0.149   284.18
2024.72    0.144   285.24
2024.82    0.139   286.36
2024.92    0.134   287.57
2025.02    0.129   288.88
2025.12    0.123   290.31
2025.22    0.117   291.89
2025.32    0.111   293.63
2025.42    0.104   295.59
2025.52    0.098   297.80
2025.62    0.091   300.34
2025.72    0.085   303.27
2025.82    0.078   306.70
2025.92    0.072   310.75
2026.02    0.065   315.60
2026.12    0.059   321.43
2026.22    0.054   328.46
2026.32    0.050   336.87
2026.42    0.047   346.68
2026.52    0.045   357.64
2026.62    0.044     9.12
2026.72    0.046    20.31
2026.82    0.049    30.50
2026.92    0.053    39.33
2027.02    0.058    46.76
2027.12    0.064    52.92
2027.22    0.070    58.04
2027.32    0.076    62.31
2027.42    0.083    65.91
2027.52    0.089    68.98
2027.62    0.096    71.62
2027.72    0.102    73.92
2027.82    0.109    75.95
2027.92    0.115    77.76
2028.02    0.121    79.39
2028.12    0.127    80.86
2028.22    0.132    82.21
2028.32    0.138    83.45
2028.42    0.143    84.60
2028.52    0.147    85.68
2028.62    0.151    86.69
2028.72    0.155    87.66
2028.82    0.159    88.57
2028.92    0.162    89.45
2029.02    0.165    90.30
2029.12    0.167    91.12
2029.22    0.169    91.92
2029.32    0.170    92.71
2029.42    0.171    93.48
2029.52    0.172    94.25
2029.62    0.172    95.02
2029.72    0.172    95.78
2029.82    0.171    96.55
2029.92    0.170    97.32
2030.02    0.169    98.11
2030.12    0.167    98.92
2030.22    0.164    99.74
2030.32    0.162   100.59
2030.42    0.158   101.48
2030.52    0.155   102.40
2030.62    0.151   103.37
2030.72    0.146   104.40
2030.82    0.142   105.49
2030.92    0.137   106.66
2031.02    0.131   107.92



 

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 18:34:34


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