Double Star Calculator - Orbit

Orbital Elements for HDO301

WDS:	HDO301	WDS ID/Discoverer
P:	26.460	Orbital period (years)
a:	0.184	Semi-major axis (arcseconds)
i:	162.9	Inclination (degrees)
Ω:	194.6	Longitude of ascending node (degrees)
T:	2015.070	Epoch of periastron passage (year)
e:	0.516	Eccentricity
ω:	255.8	Longitude of periastron (degrees)
Start-Year:	2011.77	Year
End-Year:	2038.23	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDO301
Position:	224959.25-324819.4	Epoch-2000 right ascension and declination
WDS-ID:	22500-3248	WDS designation
Discoverer Code:	HDO301	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	216042	HD catalog number
Hipparcos number:	112746	Hipparcos catalog number
V1:	7.23	Magnitude of the primary
V2:	7.12	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	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:	Tok2015c	Reference

Double Star Orbit for HDO301

WDS 6th Orbit including measures of HDO301

-- 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 HDO301

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.265   128.97
--------------------------
2011.77    0.155    43.17
2011.87    0.153    41.57
2011.97    0.150    39.93
2012.07    0.148    38.23
2012.17    0.145    36.47
2012.27    0.143    34.66
2012.37    0.140    32.78
2012.47    0.138    30.83
2012.57    0.135    28.81
2012.67    0.133    26.71
2012.77    0.130    24.53
2012.87    0.128    22.27
2012.97    0.125    19.91
2013.07    0.123    17.46
2013.17    0.120    14.90
2013.27    0.118    12.23
2013.37    0.115     9.44
2013.47    0.113     6.53
2013.57    0.110     3.49
2013.67    0.108     0.30
2013.77    0.105   356.97
2013.87    0.103   353.48
2013.97    0.101   349.83
2014.07    0.098   346.02
2014.17    0.096   342.04
2014.27    0.094   337.89
2014.37    0.093   333.57
2014.47    0.091   329.08
2014.57    0.089   324.43
2014.67    0.088   319.64
2014.77    0.087   314.72
2014.87    0.086   309.70
2014.97    0.086   304.59
2015.07    0.085   299.43
2015.17    0.085   294.25
2015.27    0.086   289.08
2015.37    0.086   283.96
2015.47    0.087   278.92
2015.57    0.088   273.97
2015.67    0.089   269.16
2015.77    0.091   264.50
2015.87    0.092   259.99
2015.97    0.094   255.66
2016.07    0.096   251.50
2016.17    0.098   247.53
2016.27    0.101   243.73
2016.37    0.103   240.10
2016.47    0.106   236.64
2016.57    0.108   233.34
2016.67    0.111   230.20
2016.77    0.114   227.21
2016.87    0.116   224.35
2016.97    0.119   221.62
2017.07    0.122   219.02
2017.17    0.124   216.53
2017.27    0.127   214.15
2017.37    0.130   211.87
2017.47    0.133   209.68
2017.57    0.135   207.58
2017.67    0.138   205.57
2017.77    0.141   203.63
2017.87    0.144   201.77
2017.97    0.146   199.97
2018.07    0.149   198.24
2018.17    0.151   196.57
2018.27    0.154   194.95
2018.37    0.157   193.38
2018.47    0.159   191.87
2018.57    0.162   190.40
2018.67    0.164   188.98
2018.77    0.166   187.60
2018.87    0.169   186.25
2018.97    0.171   184.95
2019.07    0.173   183.68
2019.17    0.176   182.44
2019.27    0.178   181.24
2019.37    0.180   180.06
2019.47    0.182   178.92
2019.57    0.185   177.80
2019.67    0.187   176.70
2019.77    0.189   175.63
2019.87    0.191   174.58
2019.97    0.193   173.56
2020.07    0.195   172.56
2020.17    0.197   171.57
2020.27    0.199   170.61
2020.37    0.201   169.66
2020.47    0.202   168.73
2020.57    0.204   167.82
2020.67    0.206   166.93
2020.77    0.208   166.05
2020.87    0.210   165.18
2020.97    0.211   164.33
2021.07    0.213   163.49
2021.17    0.215   162.67
2021.27    0.216   161.86
2021.37    0.218   161.06
2021.47    0.219   160.27
2021.57    0.221   159.49
2021.67    0.222   158.72
2021.77    0.224   157.97
2021.87    0.225   157.22
2021.97    0.227   156.48
2022.07    0.228   155.75
2022.17    0.230   155.03
2022.27    0.231   154.32
2022.37    0.232   153.62
2022.47    0.234   152.92
2022.57    0.235   152.23
2022.67    0.236   151.55
2022.77    0.237   150.88
2022.87    0.238   150.21
2022.97    0.240   149.55
2023.07    0.241   148.90
2023.17    0.242   148.25
2023.27    0.243   147.61
2023.37    0.244   146.97
2023.47    0.245   146.34
2023.57    0.246   145.71
2023.67    0.247   145.09
2023.77    0.248   144.48
2023.87    0.249   143.87
2023.97    0.250   143.26
2024.07    0.251   142.66
2024.17    0.251   142.06
2024.27    0.252   141.46
2024.37    0.253   140.87
2024.47    0.254   140.29
2024.57    0.255   139.70
2024.67    0.255   139.12
2024.77    0.256   138.55
2024.87    0.257   137.97
2024.97    0.257   137.40
2025.07    0.258   136.83
2025.17    0.259   136.27
2025.27    0.259   135.71
2025.37    0.260   135.15
2025.47    0.260   134.59
2025.57    0.261   134.04
2025.67    0.262   133.48
2025.77    0.262   132.93
2025.87    0.262   132.38
2025.97    0.263   131.84
2026.07    0.263   131.29
2026.17    0.264   130.75
2026.27    0.264   130.21
2026.37    0.265   129.67
2026.47    0.265   129.13
2026.57    0.265   128.59
2026.67    0.265   128.06
2026.77    0.266   127.52
2026.87    0.266   126.99
2026.97    0.266   126.46
2027.07    0.266   125.93
2027.17    0.267   125.40
2027.27    0.267   124.87
2027.37    0.267   124.34
2027.47    0.267   123.81
2027.57    0.267   123.28
2027.67    0.267   122.75
2027.77    0.267   122.22
2027.87    0.267   121.70
2027.97    0.267   121.17
2028.07    0.267   120.64
2028.17    0.267   120.11
2028.27    0.267   119.59
2028.37    0.267   119.06
2028.47    0.267   118.53
2028.57    0.267   118.00
2028.67    0.267   117.47
2028.77    0.267   116.95
2028.87    0.267   116.42
2028.97    0.267   115.89
2029.07    0.266   115.35
2029.17    0.266   114.82
2029.27    0.266   114.29
2029.37    0.266   113.76
2029.47    0.265   113.22
2029.57    0.265   112.68
2029.67    0.265   112.15
2029.77    0.264   111.61
2029.87    0.264   111.07
2029.97    0.264   110.53
2030.07    0.263   109.98
2030.17    0.263   109.44
2030.27    0.262   108.89
2030.37    0.262   108.34
2030.47    0.261   107.79
2030.57    0.261   107.24
2030.67    0.260   106.68
2030.77    0.260   106.12
2030.87    0.259   105.56
2030.97    0.259   105.00
2031.07    0.258   104.44
2031.17    0.257   103.87
2031.27    0.257   103.30
2031.37    0.256   102.72
2031.47    0.255   102.15
2031.57    0.255   101.57
2031.67    0.254   100.98
2031.77    0.253   100.40
2031.87    0.252    99.81
2031.97    0.252    99.21
2032.07    0.251    98.62
2032.17    0.250    98.01
2032.27    0.249    97.41
2032.37    0.248    96.80
2032.47    0.247    96.18
2032.57    0.246    95.56
2032.67    0.245    94.94
2032.77    0.244    94.31
2032.87    0.243    93.68
2032.97    0.242    93.04
2033.07    0.241    92.39
2033.17    0.240    91.74
2033.27    0.239    91.09
2033.37    0.238    90.42
2033.47    0.237    89.75
2033.57    0.236    89.08
2033.67    0.235    88.40
2033.77    0.233    87.71
2033.87    0.232    87.01
2033.97    0.231    86.31
2034.07    0.230    85.60
2034.17    0.228    84.88
2034.27    0.227    84.15
2034.37    0.226    83.42
2034.47    0.224    82.67
2034.57    0.223    81.92
2034.67    0.222    81.16
2034.77    0.220    80.38
2034.87    0.219    79.60
2034.97    0.217    78.81
2035.07    0.216    78.00
2035.17    0.214    77.18
2035.27    0.213    76.36
2035.37    0.211    75.52
2035.47    0.209    74.66
2035.57    0.208    73.80
2035.67    0.206    72.92
2035.77    0.205    72.02
2035.87    0.203    71.11
2035.97    0.201    70.19
2036.07    0.199    69.25
2036.17    0.198    68.29
2036.27    0.196    67.31
2036.37    0.194    66.32
2036.47    0.192    65.31
2036.57    0.190    64.28
2036.67    0.188    63.22
2036.77    0.186    62.15
2036.87    0.184    61.05
2036.97    0.182    59.93
2037.07    0.180    58.78
2037.17    0.178    57.61
2037.27    0.176    56.40
2037.37    0.174    55.17
2037.47    0.172    53.92
2037.57    0.170    52.62
2037.67    0.168    51.30
2037.77    0.165    49.94
2037.87    0.163    48.54
2037.97    0.161    47.10
2038.07    0.159    45.63
2038.17    0.156    44.11

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 18:44:05