Double Star Calculator - Orbit

Orbital Elements for B430

WDS:	B430	WDS ID/Discoverer
P:	19.968	Orbital period (years)
a:	0.1352	Semi-major axis (arcseconds)
i:	84.2	Inclination (degrees)
Ω:	286.1	Longitude of ascending node (degrees)
T:	2015.058	Epoch of periastron passage (year)
e:	0.4921	Eccentricity
ω:	8.1	Longitude of periastron (degrees)
Start-Year:	2015.0161	Year
End-Year:	2034.9839	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B430
Position:	191532.40-251523.8	Epoch-2000 right ascension and declination
WDS-ID:	19155-2515	WDS designation
Discoverer Code:	B430	Discover designation and components
ADS number:	12214	Aitken Double Star catalog
HD number:	179950	HD catalog number
Hipparcos number:	94643	Hipparcos catalog number
V1:	5.5	Magnitude of the primary
V2:	5.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2023	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:	Tok2024e	Reference

Double Star Orbit for B430

WDS 6th Orbit including measures of B430

-- 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 B430

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.188   108.04
--------------------------
2015.02    0.068   286.66
2015.12    0.067   287.29
2015.22    0.066   287.95
2015.32    0.064   288.64
2015.42    0.061   289.38
2015.52    0.058   290.19
2015.62    0.055   291.09
2015.72    0.051   292.12
2015.82    0.047   293.30
2015.92    0.043   294.71
2016.02    0.039   296.43
2016.12    0.034   298.59
2016.22    0.030   301.42
2016.32    0.025   305.28
2016.42    0.021   310.88
2016.52    0.016   319.58
2016.62    0.012   334.02
2016.72    0.010   357.84
2016.82    0.010    28.11
2016.92    0.012    52.24
2017.02    0.016    66.93
2017.12    0.020    75.74
2017.22    0.025    81.38
2017.32    0.030    85.25
2017.42    0.035    88.06
2017.52    0.039    90.18
2017.62    0.044    91.84
2017.72    0.049    93.19
2017.82    0.054    94.29
2017.92    0.058    95.22
2018.02    0.063    96.02
2018.12    0.067    96.70
2018.22    0.072    97.31
2018.32    0.076    97.84
2018.42    0.080    98.31
2018.52    0.084    98.74
2018.62    0.089    99.13
2018.72    0.093    99.48
2018.82    0.096    99.81
2018.92    0.100   100.11
2019.02    0.104   100.39
2019.12    0.108   100.64
2019.22    0.111   100.88
2019.32    0.115   101.11
2019.42    0.118   101.32
2019.52    0.122   101.52
2019.62    0.125   101.71
2019.72    0.128   101.89
2019.82    0.132   102.07
2019.92    0.135   102.23
2020.02    0.138   102.39
2020.12    0.141   102.54
2020.22    0.143   102.68
2020.32    0.146   102.82
2020.42    0.149   102.95
2020.52    0.152   103.08
2020.62    0.154   103.20
2020.72    0.157   103.32
2020.82    0.159   103.44
2020.92    0.161   103.55
2021.02    0.164   103.66
2021.12    0.166   103.77
2021.22    0.168   103.87
2021.32    0.170   103.98
2021.42    0.172   104.08
2021.52    0.174   104.17
2021.62    0.176   104.27
2021.72    0.177   104.36
2021.82    0.179   104.45
2021.92    0.181   104.54
2022.02    0.182   104.63
2022.12    0.184   104.72
2022.22    0.185   104.80
2022.32    0.187   104.88
2022.42    0.188   104.97
2022.52    0.189   105.05
2022.62    0.190   105.13
2022.72    0.191   105.21
2022.82    0.192   105.29
2022.92    0.193   105.37
2023.02    0.194   105.44
2023.12    0.195   105.52
2023.22    0.196   105.59
2023.32    0.197   105.67
2023.42    0.197   105.74
2023.52    0.198   105.82
2023.62    0.199   105.89
2023.72    0.199   105.97
2023.82    0.199   106.04
2023.92    0.200   106.11
2024.02    0.200   106.18
2024.12    0.200   106.26
2024.22    0.201   106.33
2024.32    0.201   106.40
2024.42    0.201   106.47
2024.52    0.201   106.54
2024.62    0.201   106.62
2024.72    0.201   106.69
2024.82    0.200   106.76
2024.92    0.200   106.83
2025.02    0.200   106.91
2025.12    0.199   106.98
2025.22    0.199   107.05
2025.32    0.199   107.12
2025.42    0.198   107.20
2025.52    0.197   107.27
2025.62    0.197   107.35
2025.72    0.196   107.42
2025.82    0.195   107.50
2025.92    0.194   107.57
2026.02    0.194   107.65
2026.12    0.193   107.73
2026.22    0.192   107.81
2026.32    0.191   107.89
2026.42    0.189   107.97
2026.52    0.188   108.05
2026.62    0.187   108.13
2026.72    0.186   108.21
2026.82    0.184   108.30
2026.92    0.183   108.38
2027.02    0.181   108.47
2027.12    0.180   108.56
2027.22    0.178   108.65
2027.32    0.177   108.74
2027.42    0.175   108.84
2027.52    0.173   108.93
2027.62    0.171   109.03
2027.72    0.169   109.13
2027.82    0.168   109.23
2027.92    0.166   109.34
2028.02    0.163   109.44
2028.12    0.161   109.55
2028.22    0.159   109.67
2028.32    0.157   109.78
2028.42    0.155   109.90
2028.52    0.152   110.03
2028.62    0.150   110.15
2028.72    0.147   110.28
2028.82    0.145   110.42
2028.92    0.142   110.56
2029.02    0.140   110.71
2029.12    0.137   110.86
2029.22    0.134   111.02
2029.32    0.131   111.18
2029.42    0.128   111.35
2029.52    0.125   111.53
2029.62    0.122   111.72
2029.72    0.119   111.92
2029.82    0.116   112.13
2029.92    0.113   112.35
2030.02    0.110   112.58
2030.12    0.106   112.83
2030.22    0.103   113.10
2030.32    0.100   113.38
2030.42    0.096   113.68
2030.52    0.093   114.01
2030.62    0.089   114.36
2030.72    0.085   114.74
2030.82    0.082   115.16
2030.92    0.078   115.61
2031.02    0.074   116.12
2031.12    0.070   116.68
2031.22    0.066   117.30
2031.32    0.062   118.00
2031.42    0.058   118.80
2031.52    0.054   119.72
2031.62    0.050   120.78
2031.72    0.046   122.04
2031.82    0.042   123.54
2031.92    0.038   125.37
2032.02    0.034   127.66
2032.12    0.030   130.58
2032.22    0.025   134.45
2032.32    0.022   139.74
2032.42    0.018   147.31
2032.52    0.015   158.53
2032.62    0.012   175.12
2032.72    0.011   197.10
2032.82    0.012   219.68
2032.92    0.014   237.32
2033.02    0.017   249.37
2033.12    0.021   257.48
2033.22    0.025   263.13
2033.32    0.029   267.23
2033.42    0.033   270.33
2033.52    0.037   272.75
2033.62    0.041   274.71
2033.72    0.044   276.32
2033.82    0.048   277.68
2033.92    0.051   278.86
2034.02    0.055   279.89
2034.12    0.058   280.80
2034.22    0.061   281.63
2034.32    0.063   282.39
2034.42    0.065   283.10
2034.52    0.067   283.76
2034.62    0.068   284.40
2034.72    0.069   285.02
2034.82    0.069   285.64
2034.92    0.069   286.25

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 18:02:14