Double Star Calculator - Orbit

Orbital Elements for BWL32

WDS:	BWL32	WDS ID/Discoverer
P:	17.850	Orbital period (years)
a:	0.2296	Semi-major axis (arcseconds)
i:	135.2	Inclination (degrees)
Ω:	188.5	Longitude of ascending node (degrees)
T:	2019.996	Epoch of periastron passage (year)
e:	0.334	Eccentricity
ω:	74.3	Longitude of periastron (degrees)
Start-Year:	2016.075	Year
End-Year:	2033.925	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BWL32
Position:	123837.13-270334.9	Epoch-2000 right ascension and declination
WDS-ID:	12386-2704	WDS designation
Discoverer Code:	BWL32	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.1	Magnitude of the primary
V2:	10.4	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2024c	Reference

Double Star Orbit for BWL32

WDS 6th Orbit including measures of BWL32

-- 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 BWL32

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.248   330.73
--------------------------
2016.08    0.211   221.63
2016.17    0.211   220.03
2016.27    0.211   218.44
2016.37    0.210   216.83
2016.47    0.210   215.22
2016.57    0.209   213.60
2016.67    0.209   211.97
2016.77    0.208   210.33
2016.87    0.207   208.68
2016.97    0.206   207.01
2017.07    0.205   205.33
2017.17    0.204   203.62
2017.27    0.202   201.89
2017.37    0.201   200.14
2017.47    0.199   198.36
2017.57    0.197   196.54
2017.67    0.195   194.69
2017.77    0.193   192.80
2017.87    0.190   190.86
2017.97    0.188   188.86
2018.07    0.185   186.81
2018.17    0.182   184.69
2018.27    0.179   182.50
2018.37    0.175   180.23
2018.47    0.172   177.86
2018.57    0.168   175.39
2018.67    0.164   172.80
2018.77    0.160   170.09
2018.87    0.156   167.23
2018.97    0.151   164.20
2019.07    0.147   161.00
2019.17    0.142   157.60
2019.27    0.138   153.98
2019.37    0.134   150.12
2019.47    0.129   146.00
2019.57    0.125   141.61
2019.67    0.122   136.94
2019.77    0.118   131.99
2019.87    0.115   126.77
2019.97    0.113   121.29
2020.07    0.111   115.60
2020.17    0.110   109.76
2020.27    0.109   103.83
2020.37    0.110    97.89
2020.47    0.111    92.01
2020.57    0.112    86.28
2020.67    0.115    80.74
2020.77    0.117    75.46
2020.87    0.121    70.45
2020.97    0.125    65.73
2021.07    0.129    61.31
2021.17    0.133    57.18
2021.27    0.138    53.32
2021.37    0.143    49.73
2021.47    0.148    46.37
2021.57    0.153    43.23
2021.67    0.158    40.29
2021.77    0.163    37.53
2021.87    0.168    34.94
2021.97    0.173    32.49
2022.07    0.178    30.17
2022.17    0.182    27.98
2022.27    0.187    25.89
2022.37    0.191    23.90
2022.47    0.195    21.99
2022.57    0.199    20.17
2022.67    0.203    18.41
2022.77    0.207    16.72
2022.87    0.211    15.09
2022.97    0.214    13.51
2023.07    0.217    11.98
2023.17    0.220    10.50
2023.27    0.223     9.05
2023.37    0.226     7.64
2023.47    0.228     6.26
2023.57    0.231     4.92
2023.67    0.233     3.60
2023.77    0.235     2.30
2023.87    0.237     1.03
2023.97    0.239   359.77
2024.07    0.241   358.54
2024.17    0.242   357.32
2024.27    0.244   356.11
2024.37    0.245   354.92
2024.47    0.246   353.74
2024.57    0.247   352.58
2024.67    0.248   351.42
2024.77    0.249   350.27
2024.87    0.250   349.12
2024.97    0.250   347.98
2025.07    0.251   346.85
2025.17    0.251   345.72
2025.27    0.251   344.59
2025.37    0.252   343.47
2025.47    0.252   342.34
2025.57    0.252   341.22
2025.67    0.252   340.10
2025.77    0.251   338.97
2025.87    0.251   337.85
2025.97    0.251   336.72
2026.07    0.251   335.59
2026.17    0.250   334.45
2026.27    0.250   333.31
2026.37    0.249   332.17
2026.47    0.248   331.02
2026.57    0.248   329.87
2026.67    0.247   328.71
2026.77    0.246   327.54
2026.87    0.246   326.36
2026.97    0.245   325.18
2027.07    0.244   323.99
2027.17    0.243   322.79
2027.27    0.242   321.58
2027.37    0.241   320.36
2027.47    0.240   319.13
2027.57    0.239   317.90
2027.67    0.238   316.65
2027.77    0.237   315.39
2027.87    0.236   314.12
2027.97    0.235   312.84
2028.07    0.234   311.54
2028.17    0.233   310.24
2028.27    0.232   308.92
2028.37    0.231   307.59
2028.47    0.230   306.25
2028.57    0.229   304.89
2028.67    0.228   303.53
2028.77    0.227   302.15
2028.87    0.226   300.75
2028.97    0.225   299.35
2029.07    0.224   297.93
2029.17    0.223   296.50
2029.27    0.222   295.06
2029.37    0.221   293.61
2029.47    0.220   292.14
2029.57    0.219   290.66
2029.67    0.218   289.18
2029.77    0.217   287.68
2029.87    0.217   286.16
2029.97    0.216   284.64
2030.07    0.215   283.11
2030.17    0.215   281.57
2030.27    0.214   280.02
2030.37    0.213   278.46
2030.47    0.213   276.90
2030.57    0.212   275.32
2030.67    0.212   273.74
2030.77    0.211   272.15
2030.87    0.211   270.56
2030.97    0.211   268.96
2031.07    0.211   267.36
2031.17    0.210   265.75
2031.27    0.210   264.14
2031.37    0.210   262.53
2031.47    0.210   260.92
2031.57    0.210   259.30
2031.67    0.210   257.68
2031.77    0.210   256.07
2031.87    0.210   254.45
2031.97    0.210   252.83
2032.07    0.210   251.21
2032.17    0.210   249.60
2032.27    0.210   247.98
2032.37    0.210   246.37
2032.47    0.210   244.76
2032.57    0.210   243.15
2032.67    0.211   241.55
2032.77    0.211   239.95
2032.87    0.211   238.35
2032.97    0.211   236.75
2033.07    0.211   235.15
2033.17    0.211   233.56
2033.27    0.211   231.97
2033.37    0.211   230.38
2033.47    0.212   228.79
2033.57    0.212   227.20
2033.67    0.212   225.61
2033.77    0.211   224.02
2033.87    0.211   222.43

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 16:48:23