Double Star Calculator - Orbit

Orbital Elements for A1746BC

WDS:	A1746BC	WDS ID/Discoverer
P:	21.780	Orbital period (years)
a:	0.149	Semi-major axis (arcseconds)
i:	19.1	Inclination (degrees)
Ω:	153.6	Longitude of ascending node (degrees)
T:	1998.420	Epoch of periastron passage (year)
e:	0.079	Eccentricity
ω:	51.0	Longitude of periastron (degrees)
Start-Year:	2014.11	Year
End-Year:	2035.89	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1746BC
Position:	082639.82+243203.7	Epoch-2000 right ascension and declination
WDS-ID:	08267+2432	WDS designation
Discoverer Code:	A1746BC	Discover designation and components
ADS number:	6811	Aitken Double Star catalog
HD number:	71153	HD catalog number
Hipparcos number:	41389	Hipparcos catalog number
V1:	8.5	Magnitude of the primary
V2:	8.5	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1999	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:	Doc2009g	Reference

Double Star Orbit for A1746BC

WDS 6th Orbit including measures of A1746BC

-- 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 A1746BC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.152   318.13
--------------------------
2014.11    0.146    96.70
2014.21    0.146    98.32
2014.31    0.146    99.95
2014.41    0.146   101.57
2014.51    0.146   103.20
2014.61    0.146   104.83
2014.71    0.145   106.47
2014.81    0.145   108.10
2014.91    0.145   109.74
2015.01    0.145   111.38
2015.11    0.145   113.02
2015.21    0.145   114.66
2015.31    0.145   116.31
2015.41    0.145   117.95
2015.51    0.145   119.60
2015.61    0.145   121.26
2015.71    0.144   122.91
2015.81    0.144   124.57
2015.91    0.144   126.23
2016.01    0.144   127.90
2016.11    0.144   129.56
2016.21    0.144   131.23
2016.31    0.144   132.91
2016.41    0.143   134.59
2016.51    0.143   136.27
2016.61    0.143   137.95
2016.71    0.143   139.64
2016.81    0.143   141.34
2016.91    0.143   143.04
2017.01    0.142   144.74
2017.11    0.142   146.45
2017.21    0.142   148.17
2017.31    0.142   149.89
2017.41    0.141   151.61
2017.51    0.141   153.35
2017.61    0.141   155.09
2017.71    0.141   156.83
2017.81    0.140   158.59
2017.91    0.140   160.35
2018.01    0.140   162.12
2018.11    0.139   163.89
2018.21    0.139   165.68
2018.31    0.139   167.47
2018.41    0.138   169.27
2018.51    0.138   171.08
2018.61    0.138   172.89
2018.71    0.137   174.72
2018.81    0.137   176.55
2018.91    0.137   178.40
2019.01    0.136   180.25
2019.11    0.136   182.11
2019.21    0.136   183.99
2019.31    0.135   185.87
2019.41    0.135   187.76
2019.51    0.135   189.66
2019.61    0.134   191.57
2019.71    0.134   193.48
2019.81    0.134   195.41
2019.91    0.134   197.35
2020.01    0.133   199.29
2020.11    0.133   201.24
2020.21    0.133   203.20
2020.31    0.132   205.17
2020.41    0.132   207.14
2020.51    0.132   209.12
2020.61    0.132   211.11
2020.71    0.132   213.10
2020.81    0.131   215.10
2020.91    0.131   217.10
2021.01    0.131   219.10
2021.11    0.131   221.11
2021.21    0.131   223.12
2021.31    0.131   225.14
2021.41    0.131   227.15
2021.51    0.131   229.16
2021.61    0.131   231.18
2021.71    0.131   233.19
2021.81    0.131   235.20
2021.91    0.131   237.20
2022.01    0.131   239.21
2022.11    0.132   241.20
2022.21    0.132   243.20
2022.31    0.132   245.19
2022.41    0.132   247.17
2022.51    0.132   249.14
2022.61    0.133   251.10
2022.71    0.133   253.06
2022.81    0.133   255.01
2022.91    0.134   256.94
2023.01    0.134   258.87
2023.11    0.135   260.79
2023.21    0.135   262.69
2023.31    0.135   264.58
2023.41    0.136   266.46
2023.51    0.136   268.33
2023.61    0.137   270.19
2023.71    0.137   272.03
2023.81    0.138   273.86
2023.91    0.138   275.67
2024.01    0.139   277.47
2024.11    0.139   279.26
2024.21    0.140   281.03
2024.31    0.140   282.79
2024.41    0.141   284.54
2024.51    0.142   286.27
2024.61    0.142   287.99
2024.71    0.143   289.69
2024.81    0.143   291.38
2024.91    0.144   293.06
2025.01    0.144   294.72
2025.11    0.145   296.38
2025.21    0.146   298.01
2025.31    0.146   299.64
2025.41    0.147   301.25
2025.51    0.147   302.86
2025.61    0.148   304.45
2025.71    0.148   306.02
2025.81    0.149   307.59
2025.91    0.149   309.15
2026.01    0.150   310.69
2026.11    0.150   312.23
2026.21    0.151   313.76
2026.31    0.151   315.27
2026.41    0.152   316.78
2026.51    0.152   318.28
2026.61    0.153   319.77
2026.71    0.153   321.25
2026.81    0.153   322.72
2026.91    0.154   324.19
2027.01    0.154   325.65
2027.11    0.154   327.10
2027.21    0.155   328.55
2027.31    0.155   329.99
2027.41    0.155   331.42
2027.51    0.156   332.85
2027.61    0.156   334.27
2027.71    0.156   335.69
2027.81    0.156   337.11
2027.91    0.157   338.52
2028.01    0.157   339.92
2028.11    0.157   341.33
2028.21    0.157   342.73
2028.31    0.157   344.13
2028.41    0.157   345.52
2028.51    0.158   346.92
2028.61    0.158   348.31
2028.71    0.158   349.70
2028.81    0.158   351.09
2028.91    0.158   352.48
2029.01    0.158   353.86
2029.11    0.158   355.25
2029.21    0.158   356.64
2029.31    0.158   358.02
2029.41    0.158   359.41
2029.51    0.158     0.80
2029.61    0.158     2.19
2029.71    0.158     3.58
2029.81    0.158     4.97
2029.91    0.157     6.37
2030.01    0.157     7.76
2030.11    0.157     9.16
2030.21    0.157    10.56
2030.31    0.157    11.96
2030.41    0.157    13.37
2030.51    0.157    14.77
2030.61    0.156    16.18
2030.71    0.156    17.60
2030.81    0.156    19.02
2030.91    0.156    20.44
2031.01    0.156    21.86
2031.11    0.155    23.29
2031.21    0.155    24.72
2031.31    0.155    26.16
2031.41    0.155    27.60
2031.51    0.155    29.05
2031.61    0.154    30.50
2031.71    0.154    31.95
2031.81    0.154    33.41
2031.91    0.154    34.87
2032.01    0.153    36.34
2032.11    0.153    37.81
2032.21    0.153    39.29
2032.31    0.153    40.77
2032.41    0.152    42.26
2032.51    0.152    43.75
2032.61    0.152    45.25
2032.71    0.152    46.75
2032.81    0.151    48.26
2032.91    0.151    49.77
2033.01    0.151    51.29
2033.11    0.151    52.81
2033.21    0.150    54.34
2033.31    0.150    55.87
2033.41    0.150    57.40
2033.51    0.150    58.94
2033.61    0.149    60.49
2033.71    0.149    62.04
2033.81    0.149    63.59
2033.91    0.149    65.15
2034.01    0.149    66.71
2034.11    0.148    68.28
2034.21    0.148    69.85
2034.31    0.148    71.42
2034.41    0.148    73.00
2034.51    0.148    74.58
2034.61    0.148    76.16
2034.71    0.147    77.75
2034.81    0.147    79.34
2034.91    0.147    80.93
2035.01    0.147    82.53
2035.11    0.147    84.13
2035.21    0.147    85.73
2035.31    0.147    87.34
2035.41    0.147    88.95
2035.51    0.146    90.56
2035.61    0.146    92.17
2035.71    0.146    93.79
2035.81    0.146    95.41

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 16:07:34