Double Star Calculator - Orbit

Orbital Elements for DBK1AA,AB

WDS:	DBK1AA,AB	WDS ID/Discoverer
P:	21.616	Orbital period (years)
a:	0.018600000000000002	Semi-major axis (arcseconds)
i:	145.4	Inclination (degrees)
Ω:	213.0	Longitude of ascending node (degrees)
T:	2008.628	Epoch of periastron passage (year)
e:	0.479	Eccentricity
ω:	118.4	Longitude of periastron (degrees)
Start-Year:	2014.1921031765364	Year
End-Year:	2035.8078968234636	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DBK1AA,AB
Position:	181805.90-121433.3	Epoch-2000 right ascension and declination
WDS-ID:	18181-1215	WDS designation
Discoverer Code:	DBK1AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	167971	HD catalog number
Hipparcos number:	89681	Hipparcos catalog number
V1:	7.45	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	LeB2017	Reference

Double Star Orbit for DBK1AA,AB

WDS 6th Orbit including measures of DBK1AA,AB

-- 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 DBK1AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.019   213.04
--------------------------
2014.19    0.019   316.89
2014.29    0.019   315.72
2014.39    0.019   314.57
2014.49    0.019   313.44
2014.59    0.019   312.32
2014.69    0.019   311.21
2014.79    0.020   310.12
2014.89    0.020   309.04
2014.99    0.020   307.97
2015.09    0.020   306.92
2015.19    0.020   305.87
2015.29    0.020   304.85
2015.39    0.020   303.83
2015.49    0.020   302.82
2015.59    0.021   301.83
2015.69    0.021   300.85
2015.79    0.021   299.87
2015.89    0.021   298.91
2015.99    0.021   297.96
2016.09    0.021   297.02
2016.19    0.021   296.09
2016.29    0.021   295.16
2016.39    0.021   294.25
2016.49    0.022   293.35
2016.59    0.022   292.45
2016.69    0.022   291.56
2016.79    0.022   290.68
2016.89    0.022   289.81
2016.99    0.022   288.95
2017.09    0.022   288.09
2017.19    0.022   287.24
2017.29    0.022   286.40
2017.39    0.022   285.57
2017.49    0.022   284.74
2017.59    0.023   283.92
2017.69    0.023   283.10
2017.79    0.023   282.29
2017.89    0.023   281.49
2017.99    0.023   280.69
2018.09    0.023   279.90
2018.19    0.023   279.11
2018.29    0.023   278.33
2018.39    0.023   277.55
2018.49    0.023   276.78
2018.59    0.023   276.01
2018.69    0.023   275.25
2018.79    0.023   274.49
2018.89    0.024   273.74
2018.99    0.024   272.99
2019.09    0.024   272.24
2019.19    0.024   271.50
2019.29    0.024   270.76
2019.39    0.024   270.02
2019.49    0.024   269.29
2019.59    0.024   268.56
2019.69    0.024   267.83
2019.79    0.024   267.11
2019.89    0.024   266.39
2019.99    0.024   265.67
2020.09    0.024   264.95
2020.19    0.024   264.24
2020.29    0.024   263.52
2020.39    0.024   262.81
2020.49    0.024   262.10
2020.59    0.024   261.39
2020.69    0.024   260.68
2020.79    0.024   259.98
2020.89    0.024   259.27
2020.99    0.024   258.57
2021.09    0.024   257.86
2021.19    0.024   257.16
2021.29    0.024   256.45
2021.39    0.024   255.75
2021.49    0.024   255.04
2021.59    0.024   254.34
2021.69    0.024   253.63
2021.79    0.024   252.93
2021.89    0.024   252.22
2021.99    0.024   251.51
2022.09    0.024   250.80
2022.19    0.024   250.09
2022.29    0.024   249.38
2022.39    0.024   248.67
2022.49    0.024   247.95
2022.59    0.024   247.23
2022.69    0.024   246.51
2022.79    0.024   245.78
2022.89    0.024   245.05
2022.99    0.024   244.32
2023.09    0.024   243.59
2023.19    0.024   242.85
2023.29    0.024   242.10
2023.39    0.024   241.35
2023.49    0.023   240.60
2023.59    0.023   239.84
2023.69    0.023   239.08
2023.79    0.023   238.31
2023.89    0.023   237.53
2023.99    0.023   236.75
2024.09    0.023   235.96
2024.19    0.023   235.16
2024.29    0.023   234.35
2024.39    0.023   233.54
2024.49    0.022   232.71
2024.59    0.022   231.88
2024.69    0.022   231.03
2024.79    0.022   230.18
2024.89    0.022   229.31
2024.99    0.022   228.43
2025.09    0.022   227.54
2025.19    0.021   226.64
2025.29    0.021   225.72
2025.39    0.021   224.78
2025.49    0.021   223.83
2025.59    0.021   222.86
2025.69    0.020   221.87
2025.79    0.020   220.86
2025.89    0.020   219.83
2025.99    0.020   218.78
2026.09    0.020   217.71
2026.19    0.019   216.61
2026.29    0.019   215.48
2026.39    0.019   214.32
2026.49    0.019   213.13
2026.59    0.018   211.91
2026.69    0.018   210.65
2026.79    0.018   209.36
2026.89    0.017   208.02
2026.99    0.017   206.64
2027.09    0.017   205.20
2027.19    0.017   203.72
2027.29    0.016   202.18
2027.39    0.016   200.57
2027.49    0.016   198.90
2027.59    0.015   197.16
2027.69    0.015   195.33
2027.79    0.015   193.42
2027.89    0.014   191.41
2027.99    0.014   189.29
2028.09    0.013   187.06
2028.19    0.013   184.71
2028.29    0.013   182.21
2028.39    0.012   179.55
2028.49    0.012   176.73
2028.59    0.012   173.72
2028.69    0.011   170.50
2028.79    0.011   167.06
2028.89    0.010   163.37
2028.99    0.010   159.42
2029.09    0.010   155.19
2029.19    0.009   150.66
2029.29    0.009   145.83
2029.39    0.009   140.69
2029.49    0.009   135.26
2029.59    0.008   129.56
2029.69    0.008   123.63
2029.79    0.008   117.53
2029.89    0.008   111.32
2029.99    0.008   105.08
2030.09    0.008    98.89
2030.19    0.008    92.80
2030.29    0.008    86.90
2030.39    0.009    81.20
2030.49    0.009    75.76
2030.59    0.009    70.58
2030.69    0.009    65.67
2030.79    0.010    61.03
2030.89    0.010    56.63
2030.99    0.010    52.48
2031.09    0.010    48.55
2031.19    0.011    44.83
2031.29    0.011    41.29
2031.39    0.011    37.93
2031.49    0.012    34.72
2031.59    0.012    31.66
2031.69    0.012    28.72
2031.79    0.012    25.91
2031.89    0.013    23.20
2031.99    0.013    20.60
2032.09    0.013    18.09
2032.19    0.013    15.66
2032.29    0.013    13.30
2032.39    0.014    11.03
2032.49    0.014     8.81
2032.59    0.014     6.66
2032.69    0.014     4.57
2032.79    0.014     2.53
2032.89    0.015     0.55
2032.99    0.015   358.61
2033.09    0.015   356.72
2033.19    0.015   354.87
2033.29    0.015   353.06
2033.39    0.015   351.29
2033.49    0.016   349.55
2033.59    0.016   347.85
2033.69    0.016   346.19
2033.79    0.016   344.55
2033.89    0.016   342.95
2033.99    0.016   341.38
2034.09    0.016   339.83
2034.19    0.017   338.31
2034.29    0.017   336.82
2034.39    0.017   335.36
2034.49    0.017   333.92
2034.59    0.017   332.50
2034.69    0.017   331.10
2034.79    0.017   329.73
2034.89    0.018   328.38
2034.99    0.018   327.05
2035.09    0.018   325.74
2035.19    0.018   324.44
2035.29    0.018   323.17
2035.39    0.018   321.92
2035.49    0.018   320.68
2035.59    0.019   319.46
2035.69    0.019   318.26
2035.79    0.019   317.08

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 17:50:16