Double Star Calculator - Orbit

Orbital Elements for HDS3007

WDS:	HDS3007	WDS ID/Discoverer
P:	26.000	Orbital period (years)
a:	0.117	Semi-major axis (arcseconds)
i:	116.9	Inclination (degrees)
Ω:	267.1	Longitude of ascending node (degrees)
T:	2005.240	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	127.1	Longitude of periastron (degrees)
Start-Year:	2012.0	Year
End-Year:	2038.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3007
Position:	210519.23+004337.4	Epoch-2000 right ascension and declination
WDS-ID:	21053+0044	WDS designation
Discoverer Code:	HDS3007	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	200747	HD catalog number
Hipparcos number:	104090	Hipparcos catalog number
V1:	8.11	Magnitude of the primary
V2:	9.48	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2021c	Reference

Double Star Orbit for HDS3007

WDS 6th Orbit including measures of HDS3007

-- 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 HDS3007

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.121   265.50
--------------------------
2012.00    0.066   358.55
2012.10    0.066   356.84
2012.20    0.067   355.16
2012.30    0.067   353.49
2012.40    0.068   351.86
2012.50    0.068   350.25
2012.60    0.069   348.66
2012.70    0.069   347.11
2012.80    0.070   345.58
2012.90    0.071   344.09
2013.00    0.072   342.63
2013.10    0.072   341.19
2013.20    0.073   339.79
2013.30    0.074   338.42
2013.40    0.075   337.07
2013.50    0.076   335.76
2013.60    0.077   334.48
2013.70    0.077   333.22
2013.80    0.078   332.00
2013.90    0.079   330.80
2014.00    0.080   329.64
2014.10    0.081   328.50
2014.20    0.082   327.39
2014.30    0.083   326.30
2014.40    0.084   325.24
2014.50    0.085   324.20
2014.60    0.086   323.19
2014.70    0.087   322.21
2014.80    0.088   321.24
2014.90    0.089   320.30
2015.00    0.090   319.38
2015.10    0.091   318.48
2015.20    0.093   317.61
2015.30    0.094   316.75
2015.40    0.095   315.91
2015.50    0.096   315.09
2015.60    0.097   314.29
2015.70    0.098   313.51
2015.80    0.099   312.74
2015.90    0.100   311.99
2016.00    0.101   311.25
2016.10    0.102   310.53
2016.20    0.103   309.83
2016.30    0.104   309.14
2016.40    0.105   308.46
2016.50    0.106   307.80
2016.60    0.107   307.15
2016.70    0.108   306.51
2016.80    0.109   305.89
2016.90    0.110   305.27
2017.00    0.112   304.67
2017.10    0.113   304.08
2017.20    0.114   303.50
2017.30    0.115   302.92
2017.40    0.115   302.36
2017.50    0.116   301.81
2017.60    0.117   301.27
2017.70    0.118   300.73
2017.80    0.119   300.21
2017.90    0.120   299.69
2018.00    0.121   299.18
2018.10    0.122   298.68
2018.20    0.123   298.18
2018.30    0.124   297.70
2018.40    0.125   297.22
2018.50    0.126   296.74
2018.60    0.126   296.28
2018.70    0.127   295.81
2018.80    0.128   295.36
2018.90    0.129   294.91
2019.00    0.130   294.47
2019.10    0.131   294.03
2019.20    0.131   293.59
2019.30    0.132   293.17
2019.40    0.133   292.74
2019.50    0.133   292.32
2019.60    0.134   291.91
2019.70    0.135   291.50
2019.80    0.136   291.09
2019.90    0.136   290.69
2020.00    0.137   290.29
2020.10    0.137   289.89
2020.20    0.138   289.50
2020.30    0.139   289.11
2020.40    0.139   288.73
2020.50    0.140   288.35
2020.60    0.140   287.97
2020.70    0.141   287.59
2020.80    0.141   287.22
2020.90    0.142   286.84
2021.00    0.142   286.47
2021.10    0.142   286.11
2021.20    0.143   285.74
2021.30    0.143   285.38
2021.40    0.144   285.02
2021.50    0.144   284.66
2021.60    0.144   284.30
2021.70    0.144   283.94
2021.80    0.145   283.59
2021.90    0.145   283.23
2022.00    0.145   282.88
2022.10    0.145   282.53
2022.20    0.145   282.18
2022.30    0.146   281.83
2022.40    0.146   281.48
2022.50    0.146   281.13
2022.60    0.146   280.78
2022.70    0.146   280.43
2022.80    0.146   280.08
2022.90    0.146   279.73
2023.00    0.146   279.38
2023.10    0.146   279.03
2023.20    0.146   278.68
2023.30    0.145   278.33
2023.40    0.145   277.98
2023.50    0.145   277.62
2023.60    0.145   277.27
2023.70    0.144   276.91
2023.80    0.144   276.56
2023.90    0.144   276.20
2024.00    0.143   275.84
2024.10    0.143   275.48
2024.20    0.143   275.11
2024.30    0.142   274.75
2024.40    0.142   274.38
2024.50    0.141   274.01
2024.60    0.140   273.63
2024.70    0.140   273.25
2024.80    0.139   272.87
2024.90    0.138   272.48
2025.00    0.138   272.09
2025.10    0.137   271.70
2025.20    0.136   271.30
2025.30    0.135   270.90
2025.40    0.134   270.49
2025.50    0.133   270.07
2025.60    0.132   269.65
2025.70    0.131   269.23
2025.80    0.130   268.79
2025.90    0.129   268.35
2026.00    0.128   267.90
2026.10    0.127   267.44
2026.20    0.125   266.97
2026.30    0.124   266.49
2026.40    0.123   266.00
2026.50    0.121   265.50
2026.60    0.120   264.99
2026.70    0.118   264.46
2026.80    0.116   263.92
2026.90    0.115   263.37
2027.00    0.113   262.80
2027.10    0.111   262.21
2027.20    0.109   261.60
2027.30    0.107   260.96
2027.40    0.106   260.31
2027.50    0.103   259.63
2027.60    0.101   258.92
2027.70    0.099   258.18
2027.80    0.097   257.41
2027.90    0.095   256.60
2028.00    0.092   255.76
2028.10    0.090   254.86
2028.20    0.087   253.92
2028.30    0.085   252.92
2028.40    0.082   251.85
2028.50    0.080   250.71
2028.60    0.077   249.50
2028.70    0.074   248.19
2028.80    0.071   246.78
2028.90    0.068   245.24
2029.00    0.065   243.57
2029.10    0.062   241.73
2029.20    0.059   239.70
2029.30    0.056   237.44
2029.40    0.053   234.92
2029.50    0.050   232.08
2029.60    0.047   228.87
2029.70    0.043   225.20
2029.80    0.041   220.98
2029.90    0.038   216.13
2030.00    0.035   210.54
2030.10    0.033   204.11
2030.20    0.031   196.79
2030.30    0.029   188.62
2030.40    0.029   179.75
2030.50    0.028   170.50
2030.60    0.029   161.25
2030.70    0.029   152.39
2030.80    0.031   144.22
2030.90    0.033   136.88
2031.00    0.035   130.41
2031.10    0.037   124.74
2031.20    0.040   119.79
2031.30    0.043   115.45
2031.40    0.045   111.63
2031.50    0.048   108.22
2031.60    0.051   105.17
2031.70    0.053   102.42
2031.80    0.056    99.90
2031.90    0.058    97.58
2032.00    0.060    95.44
2032.10    0.062    93.43
2032.20    0.064    91.54
2032.30    0.065    89.75
2032.40    0.067    88.04
2032.50    0.068    86.40
2032.60    0.069    84.82
2032.70    0.070    83.29
2032.80    0.071    81.80
2032.90    0.072    80.34
2033.00    0.072    78.92
2033.10    0.073    77.51
2033.20    0.073    76.12
2033.30    0.074    74.75
2033.40    0.074    73.38
2033.50    0.074    72.02
2033.60    0.074    70.67
2033.70    0.074    69.32
2033.80    0.074    67.96
2033.90    0.074    66.60
2034.00    0.074    65.23
2034.10    0.073    63.86
2034.20    0.073    62.47
2034.30    0.073    61.07
2034.40    0.072    59.66
2034.50    0.072    58.24
2034.60    0.072    56.80
2034.70    0.071    55.34
2034.80    0.071    53.86
2034.90    0.070    52.37
2035.00    0.070    50.85
2035.10    0.069    49.31
2035.20    0.069    47.76
2035.30    0.068    46.18
2035.40    0.068    44.58
2035.50    0.067    42.96
2035.60    0.067    41.31
2035.70    0.067    39.65
2035.80    0.066    37.96
2035.90    0.066    36.26
2036.00    0.065    34.54
2036.10    0.065    32.79
2036.20    0.065    31.03
2036.30    0.065    29.26
2036.40    0.064    27.47
2036.50    0.064    25.66
2036.60    0.064    23.85
2036.70    0.064    22.03
2036.80    0.064    20.20
2036.90    0.064    18.37
2037.00    0.064    16.53
2037.10    0.064    14.69
2037.20    0.064    12.86
2037.30    0.064    11.03
2037.40    0.064     9.21
2037.50    0.064     7.40
2037.60    0.064     5.60
2037.70    0.065     3.81
2037.80    0.065     2.04
2037.90    0.065     0.29

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 18:22:28