Double Star Calculator - Orbit

Orbital Elements for FIN356

WDS:	FIN356	WDS ID/Discoverer
P:	12.930	Orbital period (years)
a:	0.114	Semi-major axis (arcseconds)
i:	98.6	Inclination (degrees)
Ω:	85.9	Longitude of ascending node (degrees)
T:	2010.650	Epoch of periastron passage (year)
e:	0.814	Eccentricity
ω:	93.6	Longitude of periastron (degrees)
Start-Year:	2018.535	Year
End-Year:	2031.465	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN356
Position:	171930.51-500349.3	Epoch-2000 right ascension and declination
WDS-ID:	17195-5004	WDS designation
Discoverer Code:	FIN356	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	156331	HD catalog number
Hipparcos number:	84759	Hipparcos catalog number
V1:	7.0	Magnitude of the primary
V2:	7.0	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2017b	Reference

Double Star Orbit for FIN356

WDS 6th Orbit including measures of FIN356

-- 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 FIN356

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.052   239.63
--------------------------
2018.54    0.047   124.16
2018.63    0.049   122.80
2018.73    0.050   121.50
2018.83    0.051   120.26
2018.93    0.052   119.08
2019.03    0.053   117.94
2019.13    0.054   116.86
2019.23    0.056   115.82
2019.33    0.057   114.82
2019.43    0.058   113.86
2019.53    0.059   112.94
2019.63    0.060   112.05
2019.73    0.061   111.20
2019.83    0.062   110.37
2019.93    0.063   109.57
2020.03    0.064   108.79
2020.13    0.065   108.04
2020.23    0.066   107.31
2020.33    0.067   106.60
2020.43    0.068   105.91
2020.53    0.069   105.24
2020.63    0.069   104.58
2020.73    0.070   103.94
2020.83    0.071   103.31
2020.93    0.072   102.69
2021.03    0.072   102.08
2021.13    0.073   101.48
2021.23    0.073   100.88
2021.33    0.073   100.30
2021.43    0.074    99.72
2021.53    0.074    99.14
2021.63    0.074    98.56
2021.73    0.074    97.99
2021.83    0.074    97.41
2021.93    0.073    96.83
2022.03    0.073    96.25
2022.13    0.072    95.66
2022.23    0.072    95.05
2022.33    0.071    94.43
2022.43    0.069    93.79
2022.53    0.068    93.12
2022.63    0.066    92.42
2022.73    0.064    91.68
2022.83    0.061    90.87
2022.93    0.058    89.98
2023.03    0.053    88.96
2023.13    0.048    87.74
2023.23    0.042    86.19
2023.33    0.033    83.95
2023.43    0.022    79.69
2023.53    0.007    59.88
2023.63    0.011   281.25
2023.73    0.025   270.07
2023.83    0.035   266.48
2023.93    0.042   264.34
2024.03    0.047   262.75
2024.13    0.051   261.45
2024.23    0.054   260.31
2024.33    0.056   259.28
2024.43    0.058   258.33
2024.53    0.060   257.42
2024.63    0.061   256.55
2024.73    0.061   255.70
2024.83    0.062   254.87
2024.93    0.062   254.05
2025.03    0.062   253.23
2025.13    0.062   252.42
2025.23    0.062   251.60
2025.33    0.061   250.77
2025.43    0.061   249.93
2025.53    0.060   249.08
2025.63    0.060   248.21
2025.73    0.059   247.33
2025.83    0.058   246.42
2025.93    0.058   245.49
2026.03    0.057   244.53
2026.13    0.056   243.54
2026.23    0.055   242.52
2026.33    0.054   241.46
2026.43    0.053   240.37
2026.53    0.052   239.23
2026.63    0.051   238.05
2026.73    0.050   236.81
2026.83    0.049   235.53
2026.93    0.048   234.18
2027.03    0.047   232.78
2027.13    0.046   231.30
2027.23    0.045   229.76
2027.33    0.043   228.14
2027.43    0.042   226.43
2027.53    0.041   224.64
2027.63    0.040   222.76
2027.73    0.039   220.78
2027.83    0.038   218.70
2027.93    0.037   216.52
2028.03    0.037   214.22
2028.13    0.036   211.81
2028.23    0.035   209.28
2028.33    0.034   206.64
2028.43    0.033   203.89
2028.53    0.033   201.02
2028.63    0.032   198.05
2028.73    0.032   194.98
2028.83    0.031   191.82
2028.93    0.031   188.59
2029.03    0.031   185.31
2029.13    0.031   181.98
2029.23    0.031   178.64
2029.33    0.031   175.29
2029.43    0.031   171.96
2029.53    0.031   168.67
2029.63    0.031   165.44
2029.73    0.032   162.28
2029.83    0.032   159.21
2029.93    0.033   156.23
2030.03    0.033   153.36
2030.13    0.034   150.60
2030.23    0.035   147.96
2030.33    0.036   145.44
2030.43    0.037   143.03
2030.53    0.037   140.73
2030.63    0.038   138.55
2030.73    0.039   136.48
2030.83    0.040   134.50
2030.93    0.042   132.63
2031.03    0.043   130.86
2031.13    0.044   129.17
2031.23    0.045   127.56
2031.33    0.046   126.04
2031.43    0.047   124.59

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 17:36:58