Double Star Calculator - Orbit

Orbital Elements for LAW5

WDS:	LAW5	WDS ID/Discoverer
P:	21.640	Orbital period (years)
a:	0.283	Semi-major axis (arcseconds)
i:	53.89	Inclination (degrees)
Ω:	179.12	Longitude of ascending node (degrees)
T:	2031.008	Epoch of periastron passage (year)
e:	0.497	Eccentricity
ω:	118.3	Longitude of periastron (degrees)
Start-Year:	2014.18	Year
End-Year:	2035.82	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for LAW5
Position:	173513.12+263443.1	Epoch-2000 right ascension and declination
WDS-ID:	17352+2635	WDS designation
Discoverer Code:	LAW5	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	15.4	Magnitude of the primary
V2:	16.3	Magnitude of the secondary
Equinox:		Equinox
Date:	2013	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Dup2017	Reference

Double Star Orbit for LAW5

WDS 6th Orbit including measures of LAW5

-- 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 LAW5

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.310   171.97
--------------------------
2014.18    0.208    60.33
2014.28    0.208    61.91
2014.38    0.208    63.48
2014.48    0.209    65.04
2014.58    0.209    66.60
2014.68    0.210    68.15
2014.78    0.210    69.69
2014.88    0.211    71.23
2014.98    0.212    72.75
2015.08    0.213    74.27
2015.18    0.213    75.77
2015.28    0.214    77.26
2015.38    0.215    78.74
2015.48    0.216    80.21
2015.58    0.217    81.66
2015.68    0.218    83.10
2015.78    0.219    84.52
2015.88    0.220    85.93
2015.98    0.222    87.33
2016.08    0.223    88.71
2016.18    0.224    90.07
2016.28    0.226    91.42
2016.38    0.227    92.75
2016.48    0.228    94.06
2016.58    0.230    95.36
2016.68    0.232    96.64
2016.78    0.233    97.90
2016.88    0.235    99.15
2016.98    0.236   100.37
2017.08    0.238   101.58
2017.18    0.240   102.78
2017.28    0.242   103.95
2017.38    0.243   105.11
2017.48    0.245   106.25
2017.58    0.247   107.38
2017.68    0.249   108.49
2017.78    0.251   109.58
2017.88    0.253   110.65
2017.98    0.255   111.71
2018.08    0.257   112.76
2018.18    0.258   113.78
2018.28    0.260   114.79
2018.38    0.262   115.79
2018.48    0.264   116.77
2018.58    0.266   117.74
2018.68    0.268   118.69
2018.78    0.270   119.63
2018.88    0.272   120.56
2018.98    0.274   121.47
2019.08    0.276   122.37
2019.18    0.278   123.26
2019.28    0.280   124.13
2019.38    0.282   124.99
2019.48    0.284   125.84
2019.58    0.286   126.68
2019.68    0.288   127.50
2019.78    0.290   128.32
2019.88    0.292   129.12
2019.98    0.294   129.92
2020.08    0.296   130.70
2020.18    0.298   131.47
2020.28    0.299   132.24
2020.38    0.301   132.99
2020.48    0.303   133.74
2020.58    0.305   134.48
2020.68    0.307   135.21
2020.78    0.308   135.93
2020.88    0.310   136.64
2020.98    0.312   137.35
2021.08    0.313   138.04
2021.18    0.315   138.74
2021.28    0.316   139.42
2021.38    0.318   140.10
2021.48    0.319   140.77
2021.58    0.321   141.43
2021.68    0.322   142.09
2021.78    0.324   142.75
2021.88    0.325   143.39
2021.98    0.326   144.04
2022.08    0.327   144.68
2022.18    0.328   145.31
2022.28    0.330   145.94
2022.38    0.331   146.56
2022.48    0.332   147.19
2022.58    0.333   147.80
2022.68    0.334   148.42
2022.78    0.334   149.03
2022.88    0.335   149.64
2022.98    0.336   150.24
2023.08    0.337   150.84
2023.18    0.337   151.44
2023.28    0.338   152.04
2023.38    0.338   152.64
2023.48    0.339   153.23
2023.58    0.339   153.83
2023.68    0.339   154.42
2023.78    0.339   155.01
2023.88    0.340   155.60
2023.98    0.340   156.19
2024.08    0.340   156.78
2024.18    0.340   157.37
2024.28    0.339   157.97
2024.38    0.339   158.56
2024.48    0.339   159.15
2024.58    0.338   159.75
2024.68    0.338   160.34
2024.78    0.337   160.94
2024.88    0.336   161.54
2024.98    0.336   162.15
2025.08    0.335   162.75
2025.18    0.334   163.36
2025.28    0.333   163.98
2025.38    0.331   164.59
2025.48    0.330   165.22
2025.58    0.329   165.85
2025.68    0.327   166.48
2025.78    0.325   167.12
2025.88    0.324   167.77
2025.98    0.322   168.42
2026.08    0.320   169.08
2026.18    0.317   169.76
2026.28    0.315   170.44
2026.38    0.313   171.13
2026.48    0.310   171.83
2026.58    0.307   172.55
2026.68    0.305   173.27
2026.78    0.302   174.01
2026.88    0.298   174.77
2026.98    0.295   175.55
2027.08    0.292   176.34
2027.18    0.288   177.15
2027.28    0.284   177.98
2027.38    0.280   178.84
2027.48    0.276   179.72
2027.58    0.272   180.63
2027.68    0.267   181.57
2027.78    0.262   182.54
2027.88    0.257   183.55
2027.98    0.252   184.60
2028.08    0.247   185.69
2028.18    0.241   186.84
2028.28    0.236   188.04
2028.38    0.230   189.30
2028.48    0.223   190.62
2028.58    0.217   192.03
2028.68    0.210   193.52
2028.78    0.204   195.11
2028.88    0.196   196.82
2028.98    0.189   198.65
2029.08    0.182   200.63
2029.18    0.174   202.78
2029.28    0.166   205.13
2029.38    0.158   207.71
2029.48    0.151   210.57
2029.58    0.142   213.75
2029.68    0.134   217.30
2029.78    0.127   221.31
2029.88    0.119   225.83
2029.98    0.112   230.97
2030.08    0.105   236.79
2030.18    0.099   243.37
2030.28    0.094   250.73
2030.38    0.090   258.82
2030.48    0.088   267.48
2030.58    0.087   276.47
2030.68    0.088   285.45
2030.78    0.090   294.11
2030.88    0.094   302.20
2030.98    0.099   309.59
2031.08    0.104   316.24
2031.18    0.110   322.17
2031.28    0.117   327.45
2031.38    0.124   332.16
2031.48    0.130   336.39
2031.58    0.137   340.22
2031.68    0.143   343.70
2031.78    0.149   346.89
2031.88    0.155   349.84
2031.98    0.160   352.58
2032.08    0.165   355.16
2032.18    0.170   357.59
2032.28    0.174   359.90
2032.38    0.178     2.11
2032.48    0.181     4.22
2032.58    0.184     6.26
2032.68    0.187     8.23
2032.78    0.190    10.15
2032.88    0.192    12.02
2032.98    0.194    13.85
2033.08    0.196    15.64
2033.18    0.197    17.40
2033.28    0.199    19.14
2033.38    0.200    20.85
2033.48    0.201    22.55
2033.58    0.202    24.22
2033.68    0.203    25.89
2033.78    0.203    27.54
2033.88    0.204    29.18
2033.98    0.204    30.82
2034.08    0.205    32.45
2034.18    0.205    34.07
2034.28    0.205    35.69
2034.38    0.205    37.30
2034.48    0.206    38.92
2034.58    0.206    40.53
2034.68    0.206    42.13
2034.78    0.206    43.74
2034.88    0.206    45.34
2034.98    0.206    46.95
2035.08    0.206    48.55
2035.18    0.206    50.15
2035.28    0.207    51.75
2035.38    0.207    53.34
2035.48    0.207    54.94
2035.58    0.207    56.53
2035.68    0.207    58.11
2035.78    0.208    59.70

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 17:40:29