Double Star Calculator - Orbit

Orbital Elements for FIN309

WDS:	FIN309	WDS ID/Discoverer
P:	12.921	Orbital period (years)
a:	0.18189	Semi-major axis (arcseconds)
i:	28.24	Inclination (degrees)
Ω:	287.0	Longitude of ascending node (degrees)
T:	1995.265	Epoch of periastron passage (year)
e:	0.6373	Eccentricity
ω:	34.6	Longitude of periastron (degrees)
Start-Year:	2018.5394	Year
End-Year:	2031.4606	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN309
Position:	144610.92-211032.6	Epoch-2000 right ascension and declination
WDS-ID:	14462-2111	WDS designation
Discoverer Code:	FIN309	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	129980	HD catalog number
Hipparcos number:	72217	Hipparcos catalog number
V1:	7.30	Magnitude of the primary
V2:	7.30	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	Msn2023	Reference

Double Star Orbit for FIN309

WDS 6th Orbit including measures of FIN309

-- 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 FIN309

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.286   130.19
--------------------------
2018.54    0.192   178.19
2018.64    0.187   179.94
2018.74    0.182   181.77
2018.84    0.178   183.70
2018.94    0.173   185.74
2019.04    0.168   187.89
2019.14    0.163   190.18
2019.24    0.158   192.62
2019.34    0.153   195.22
2019.44    0.147   198.00
2019.54    0.142   201.00
2019.64    0.136   204.23
2019.74    0.131   207.73
2019.84    0.125   211.54
2019.94    0.120   215.70
2020.04    0.114   220.27
2020.14    0.109   225.30
2020.24    0.103   230.88
2020.34    0.098   237.08
2020.44    0.092   244.00
2020.54    0.087   251.77
2020.64    0.082   260.50
2020.74    0.077   270.35
2020.84    0.073   281.48
2020.94    0.069   294.01
2021.04    0.065   308.01
2021.14    0.063   323.30
2021.24    0.062   339.31
2021.34    0.064   355.14
2021.44    0.067     9.81
2021.54    0.072    22.70
2021.64    0.079    33.66
2021.74    0.086    42.85
2021.84    0.094    50.56
2021.94    0.102    57.07
2022.04    0.110    62.64
2022.14    0.118    67.44
2022.24    0.126    71.64
2022.34    0.134    75.36
2022.44    0.141    78.67
2022.54    0.148    81.66
2022.64    0.155    84.37
2022.74    0.162    86.85
2022.84    0.169    89.14
2022.94    0.175    91.26
2023.04    0.181    93.23
2023.14    0.187    95.08
2023.24    0.193    96.81
2023.34    0.198    98.45
2023.44    0.203   100.01
2023.54    0.208   101.49
2023.64    0.213   102.90
2023.74    0.218   104.25
2023.84    0.222   105.54
2023.94    0.226   106.78
2024.04    0.231   107.98
2024.14    0.234   109.14
2024.24    0.238   110.26
2024.34    0.242   111.34
2024.44    0.245   112.40
2024.54    0.249   113.43
2024.64    0.252   114.43
2024.74    0.255   115.40
2024.84    0.258   116.36
2024.94    0.260   117.29
2025.04    0.263   118.20
2025.14    0.265   119.10
2025.24    0.268   119.98
2025.34    0.270   120.85
2025.44    0.272   121.71
2025.54    0.274   122.55
2025.64    0.275   123.38
2025.74    0.277   124.20
2025.84    0.279   125.01
2025.94    0.280   125.81
2026.04    0.281   126.61
2026.14    0.282   127.39
2026.24    0.283   128.18
2026.34    0.284   128.95
2026.44    0.285   129.72
2026.54    0.286   130.49
2026.64    0.286   131.26
2026.74    0.287   132.02
2026.84    0.287   132.78
2026.94    0.288   133.53
2027.04    0.288   134.29
2027.14    0.288   135.04
2027.24    0.288   135.80
2027.34    0.288   136.56
2027.44    0.287   137.31
2027.54    0.287   138.07
2027.64    0.287   138.83
2027.74    0.286   139.60
2027.84    0.285   140.36
2027.94    0.284   141.13
2028.04    0.284   141.91
2028.14    0.283   142.69
2028.24    0.281   143.48
2028.34    0.280   144.27
2028.44    0.279   145.07
2028.54    0.278   145.88
2028.64    0.276   146.70
2028.74    0.275   147.52
2028.84    0.273   148.36
2028.94    0.271   149.20
2029.04    0.269   150.06
2029.14    0.267   150.93
2029.24    0.265   151.81
2029.34    0.263   152.71
2029.44    0.260   153.63
2029.54    0.258   154.56
2029.64    0.256   155.51
2029.74    0.253   156.47
2029.84    0.250   157.46
2029.94    0.247   158.47
2030.04    0.244   159.51
2030.14    0.241   160.57
2030.24    0.238   161.66
2030.34    0.235   162.77
2030.44    0.232   163.92
2030.54    0.228   165.10
2030.64    0.225   166.32
2030.74    0.221   167.58
2030.84    0.217   168.88
2030.94    0.213   170.23
2031.04    0.209   171.63
2031.14    0.205   173.09
2031.24    0.201   174.60
2031.34    0.197   176.18
2031.44    0.193   177.83

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 17:08:31