Double Star Calculator - Orbit

Orbital Elements for FIN355
WDS: FIN355 WDS ID/Discoverer
P: 14.230 Orbital period (years)
a: 0.249 Semi-major axis (arcseconds)
i: 115.3 Inclination (degrees)
Ω: 191.9 Longitude of ascending node (degrees)
T: 1985.970 Epoch of periastron passage (year)
e: 0.476 Eccentricity
ω: 137.2 Longitude of periastron (degrees)
Start-Year: 2017.885 Year
End-Year: 2032.115 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for FIN355
Position: 171535.95-383538.0 Epoch-2000 right ascension and declination
WDS-ID: 17156-3836 WDS designation
Discoverer Code: FIN355 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 155826 HD catalog number
Hipparcos number: 84425 Hipparcos catalog number
V1: 6.30 Magnitude of the primary
V2: 7.88 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 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: Tok2015c Reference

Double Star Orbit for FIN355



WDS 6th Orbit including measures of FIN355

-- 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 FIN355
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.212   179.92
--------------------------
2017.88    0.127   272.96
2017.98    0.130   269.39
2018.08    0.133   265.99
2018.18    0.137   262.77
2018.28    0.141   259.71
2018.38    0.145   256.83
2018.48    0.149   254.10
2018.58    0.154   251.54
2018.68    0.158   249.12
2018.78    0.163   246.84
2018.88    0.168   244.69
2018.98    0.173   242.67
2019.08    0.178   240.76
2019.18    0.183   238.95
2019.28    0.188   237.24
2019.38    0.193   235.62
2019.48    0.198   234.08
2019.58    0.204   232.62
2019.68    0.209   231.24
2019.78    0.214   229.91
2019.88    0.219   228.65
2019.98    0.224   227.45
2020.08    0.229   226.30
2020.18    0.233   225.19
2020.28    0.238   224.13
2020.38    0.243   223.11
2020.48    0.247   222.13
2020.58    0.252   221.18
2020.68    0.256   220.27
2020.78    0.261   219.39
2020.88    0.265   218.54
2020.98    0.269   217.71
2021.08    0.273   216.91
2021.18    0.277   216.13
2021.28    0.281   215.37
2021.38    0.284   214.63
2021.48    0.288   213.91
2021.58    0.291   213.21
2021.68    0.295   212.52
2021.78    0.298   211.85
2021.88    0.301   211.19
2021.98    0.304   210.55
2022.08    0.306   209.91
2022.18    0.309   209.29
2022.28    0.311   208.68
2022.38    0.313   208.07
2022.48    0.315   207.48
2022.58    0.317   206.89
2022.68    0.319   206.31
2022.78    0.321   205.73
2022.88    0.322   205.16
2022.98    0.323   204.59
2023.08    0.324   204.03
2023.18    0.325   203.47
2023.28    0.326   202.92
2023.38    0.326   202.36
2023.48    0.326   201.81
2023.58    0.326   201.25
2023.68    0.326   200.70
2023.78    0.326   200.15
2023.88    0.325   199.59
2023.98    0.325   199.03
2024.08    0.323   198.47
2024.18    0.322   197.91
2024.28    0.321   197.34
2024.38    0.319   196.76
2024.48    0.317   196.18
2024.58    0.315   195.58
2024.68    0.312   194.98
2024.78    0.309   194.37
2024.88    0.306   193.75
2024.98    0.303   193.12
2025.08    0.299   192.47
2025.18    0.295   191.80
2025.28    0.291   191.11
2025.38    0.287   190.41
2025.48    0.282   189.68
2025.58    0.276   188.92
2025.68    0.271   188.13
2025.78    0.265   187.31
2025.88    0.259   186.45
2025.98    0.252   185.55
2026.08    0.245   184.60
2026.18    0.238   183.59
2026.28    0.230   182.51
2026.38    0.222   181.36
2026.48    0.213   180.11
2026.58    0.205   178.76
2026.68    0.195   177.29
2026.78    0.186   175.66
2026.88    0.175   173.85
2026.98    0.165   171.81
2027.08    0.154   169.49
2027.18    0.143   166.82
2027.28    0.131   163.68
2027.38    0.120   159.94
2027.48    0.108   155.41
2027.58    0.097   149.80
2027.68    0.086   142.76
2027.78    0.077   133.82
2027.88    0.069   122.57
2027.98    0.063   108.95
2028.08    0.062    93.76
2028.18    0.064    78.64
2028.28    0.069    65.18
2028.38    0.077    54.06
2028.48    0.086    45.14
2028.58    0.096    37.98
2028.68    0.105    32.13
2028.78    0.114    27.24
2028.88    0.123    23.05
2028.98    0.130    19.36
2029.08    0.136    16.03
2029.18    0.141    12.97
2029.28    0.145    10.10
2029.38    0.148     7.35
2029.48    0.150     4.69
2029.58    0.151     2.08
2029.68    0.151   359.49
2029.78    0.150   356.89
2029.88    0.149   354.26
2029.98    0.148   351.58
2030.08    0.145   348.84
2030.18    0.143   346.01
2030.28    0.141   343.08
2030.38    0.138   340.04
2030.48    0.135   336.88
2030.58    0.132   333.59
2030.68    0.130   330.16
2030.78    0.127   326.59
2030.88    0.125   322.87
2030.98    0.123   319.03
2031.08    0.121   315.06
2031.18    0.120   310.99
2031.28    0.119   306.82
2031.38    0.118   302.61
2031.48    0.118   298.36
2031.58    0.118   294.12
2031.68    0.119   289.91
2031.78    0.120   285.78
2031.88    0.122   281.74
2031.98    0.124   277.83
2032.08    0.126   274.06



 

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 17:35:35


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