Double Star Calculator - Orbit

Orbital Elements for B1418

WDS:	B1418	WDS ID/Discoverer
P:	19.820	Orbital period (years)
a:	0.227	Semi-major axis (arcseconds)
i:	85.8	Inclination (degrees)
Ω:	279.8	Longitude of ascending node (degrees)
T:	2015.440	Epoch of periastron passage (year)
e:	0.404	Eccentricity
ω:	323.3	Longitude of periastron (degrees)
Start-Year:	2015.09	Year
End-Year:	2034.91	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1418
Position:	005655.38-515232.0	Epoch-2000 right ascension and declination
WDS-ID:	00569-5153	WDS designation
Discoverer Code:	B1418	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	5578	HD catalog number
Hipparcos number:	4448	Hipparcos catalog number
V1:	9.77	Magnitude of the primary
V2:	10.02	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	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:	Tok2019c	Reference

Double Star Orbit for B1418

WDS 6th Orbit including measures of B1418

-- 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 B1418

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.282    97.67
--------------------------
2015.09    0.083   274.26
2015.19    0.091   275.09
2015.29    0.098   275.80
2015.39    0.105   276.40
2015.49    0.112   276.93
2015.59    0.118   277.41
2015.69    0.123   277.84
2015.79    0.128   278.24
2015.89    0.133   278.60
2015.99    0.136   278.95
2016.09    0.140   279.28
2016.19    0.142   279.60
2016.29    0.144   279.90
2016.39    0.146   280.20
2016.49    0.146   280.49
2016.59    0.147   280.79
2016.69    0.147   281.08
2016.79    0.146   281.37
2016.89    0.145   281.67
2016.99    0.143   281.97
2017.09    0.142   282.28
2017.19    0.139   282.59
2017.29    0.137   282.92
2017.39    0.134   283.26
2017.49    0.131   283.62
2017.59    0.127   284.00
2017.69    0.123   284.40
2017.79    0.119   284.83
2017.89    0.115   285.28
2017.99    0.111   285.77
2018.09    0.106   286.30
2018.19    0.102   286.88
2018.29    0.097   287.52
2018.39    0.092   288.23
2018.49    0.087   289.02
2018.59    0.082   289.90
2018.69    0.076   290.91
2018.79    0.071   292.07
2018.89    0.066   293.42
2018.99    0.060   295.01
2019.09    0.055   296.91
2019.19    0.049   299.23
2019.29    0.044   302.12
2019.39    0.039   305.79
2019.49    0.034   310.59
2019.59    0.029   317.03
2019.69    0.025   325.85
2019.79    0.021   337.96
2019.89    0.019   353.85
2019.99    0.018    12.22
2020.09    0.020    29.78
2020.19    0.023    43.98
2020.29    0.027    54.49
2020.39    0.031    62.12
2020.49    0.036    67.73
2020.59    0.041    71.96
2020.69    0.047    75.23
2020.79    0.052    77.83
2020.89    0.057    79.93
2020.99    0.063    81.67
2021.09    0.068    83.13
2021.19    0.074    84.37
2021.29    0.079    85.44
2021.39    0.085    86.37
2021.49    0.090    87.18
2021.59    0.096    87.91
2021.69    0.101    88.55
2021.79    0.107    89.14
2021.89    0.112    89.66
2021.99    0.117    90.14
2022.09    0.122    90.58
2022.19    0.128    90.98
2022.29    0.133    91.35
2022.39    0.138    91.69
2022.49    0.143    92.01
2022.59    0.148    92.31
2022.69    0.153    92.59
2022.79    0.157    92.85
2022.89    0.162    93.10
2022.99    0.167    93.33
2023.09    0.171    93.55
2023.19    0.176    93.75
2023.29    0.181    93.95
2023.39    0.185    94.14
2023.49    0.189    94.32
2023.59    0.194    94.49
2023.69    0.198    94.65
2023.79    0.202    94.81
2023.89    0.206    94.96
2023.99    0.210    95.11
2024.09    0.214    95.25
2024.19    0.218    95.38
2024.29    0.221    95.51
2024.39    0.225    95.64
2024.49    0.229    95.76
2024.59    0.232    95.88
2024.69    0.236    95.99
2024.79    0.239    96.10
2024.89    0.242    96.21
2024.99    0.245    96.32
2025.09    0.248    96.42
2025.19    0.251    96.52
2025.29    0.254    96.62
2025.39    0.257    96.71
2025.49    0.260    96.81
2025.59    0.262    96.90
2025.69    0.265    96.99
2025.79    0.267    97.08
2025.89    0.270    97.17
2025.99    0.272    97.25
2026.09    0.274    97.34
2026.19    0.276    97.42
2026.29    0.278    97.50
2026.39    0.280    97.58
2026.49    0.281    97.66
2026.59    0.283    97.74
2026.69    0.284    97.82
2026.79    0.286    97.89
2026.89    0.287    97.97
2026.99    0.288    98.05
2027.09    0.289    98.12
2027.19    0.290    98.20
2027.29    0.291    98.27
2027.39    0.292    98.34
2027.49    0.293    98.42
2027.59    0.293    98.49
2027.69    0.293    98.56
2027.79    0.294    98.64
2027.89    0.294    98.71
2027.99    0.294    98.78
2028.09    0.294    98.85
2028.19    0.294    98.93
2028.29    0.293    99.00
2028.39    0.293    99.07
2028.49    0.292    99.15
2028.59    0.291    99.22
2028.69    0.290    99.29
2028.79    0.289    99.37
2028.89    0.288    99.44
2028.99    0.287    99.52
2029.09    0.285    99.60
2029.19    0.284    99.67
2029.29    0.282    99.75
2029.39    0.280    99.83
2029.49    0.278    99.91
2029.59    0.276    99.99
2029.69    0.274   100.08
2029.79    0.271   100.16
2029.89    0.269   100.25
2029.99    0.266   100.33
2030.09    0.263   100.42
2030.19    0.260   100.52
2030.29    0.256   100.61
2030.39    0.253   100.71
2030.49    0.249   100.81
2030.59    0.245   100.91
2030.69    0.241   101.02
2030.79    0.237   101.12
2030.89    0.233   101.24
2030.99    0.228   101.36
2031.09    0.224   101.48
2031.19    0.219   101.61
2031.29    0.214   101.74
2031.39    0.208   101.88
2031.49    0.203   102.03
2031.59    0.197   102.19
2031.69    0.191   102.35
2031.79    0.185   102.53
2031.89    0.179   102.72
2031.99    0.172   102.92
2032.09    0.166   103.14
2032.19    0.159   103.38
2032.29    0.152   103.64
2032.39    0.145   103.92
2032.49    0.137   104.24
2032.59    0.129   104.59
2032.69    0.122   104.99
2032.79    0.113   105.45
2032.89    0.105   105.97
2032.99    0.097   106.59
2033.09    0.088   107.32
2033.19    0.079   108.22
2033.29    0.070   109.34
2033.39    0.061   110.79
2033.49    0.052   112.74
2033.59    0.043   115.51
2033.69    0.034   119.79
2033.79    0.025   127.14
2033.89    0.017   141.97
2033.99    0.012   175.60
2034.09    0.013   221.81
2034.19    0.020   246.76
2034.29    0.028   257.95
2034.39    0.037   263.87
2034.49    0.046   267.49
2034.59    0.055   269.92
2034.69    0.064   271.68
2034.79    0.073   273.02
2034.89    0.081   274.07

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 14:45:23