Double Star Calculator - Orbit

Orbital Elements for B2601AB
WDS: B2601AB WDS ID/Discoverer
P: 16.578 Orbital period (years)
a: 1.08604 Semi-major axis (arcseconds)
i: 52.91 Inclination (degrees)
Ω: 30.385 Longitude of ascending node (degrees)
T: 2015.876 Epoch of periastron passage (year)
e: 0.38229 Eccentricity
ω: 220.942 Longitude of periastron (degrees)
Start-Year: 2016.71115 Year
End-Year: 2033.28885 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for B2601AB
Position: 062923.40-024850.3 Epoch-2000 right ascension and declination
WDS-ID: 06293-0248 WDS designation
Discoverer Code: B2601AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 30920 Hipparcos catalog number
V1: 11.0 Magnitude of the primary
V2: 14.8 Magnitude of the secondary
Equinox: Equinox
Date: 2016 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: MnA2019 Reference

Double Star Orbit for B2601AB



WDS 6th Orbit including measures of B2601AB

-- 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 B2601AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.966    84.53
--------------------------
2016.71    0.441   288.47
2016.81    0.443   295.78
2016.91    0.450   302.94
2017.01    0.462   309.81
2017.11    0.478   316.28
2017.21    0.498   322.27
2017.31    0.521   327.77
2017.41    0.547   332.78
2017.51    0.575   337.32
2017.61    0.604   341.44
2017.71    0.634   345.17
2017.81    0.665   348.56
2017.91    0.696   351.65
2018.01    0.727   354.47
2018.11    0.758   357.06
2018.21    0.789   359.44
2018.31    0.820     1.65
2018.41    0.849     3.70
2018.51    0.879     5.61
2018.61    0.907     7.40
2018.71    0.935     9.08
2018.81    0.963    10.67
2018.91    0.989    12.17
2019.01    1.014    13.59
2019.11    1.039    14.94
2019.21    1.063    16.24
2019.31    1.086    17.47
2019.41    1.108    18.66
2019.51    1.129    19.80
2019.61    1.149    20.90
2019.71    1.168    21.96
2019.81    1.187    22.99
2019.91    1.204    23.99
2020.01    1.221    24.96
2020.11    1.237    25.91
2020.21    1.252    26.83
2020.31    1.266    27.73
2020.41    1.279    28.61
2020.51    1.291    29.48
2020.61    1.303    30.33
2020.71    1.314    31.16
2020.81    1.324    31.98
2020.91    1.333    32.79
2021.01    1.342    33.59
2021.11    1.349    34.37
2021.21    1.356    35.15
2021.31    1.363    35.93
2021.41    1.368    36.69
2021.51    1.373    37.45
2021.61    1.377    38.21
2021.71    1.380    38.96
2021.81    1.383    39.71
2021.91    1.385    40.45
2022.01    1.387    41.19
2022.11    1.387    41.94
2022.21    1.388    42.68
2022.31    1.387    43.42
2022.41    1.386    44.16
2022.51    1.384    44.90
2022.61    1.382    45.65
2022.71    1.379    46.40
2022.81    1.376    47.15
2022.91    1.372    47.91
2023.01    1.367    48.67
2023.11    1.362    49.43
2023.21    1.357    50.21
2023.31    1.351    50.99
2023.41    1.344    51.77
2023.51    1.337    52.57
2023.61    1.330    53.37
2023.71    1.322    54.18
2023.81    1.313    55.00
2023.91    1.304    55.84
2024.01    1.295    56.68
2024.11    1.285    57.54
2024.21    1.275    58.41
2024.31    1.264    59.30
2024.41    1.254    60.20
2024.51    1.242    61.11
2024.61    1.231    62.05
2024.71    1.219    63.00
2024.81    1.206    63.97
2024.91    1.194    64.96
2025.01    1.181    65.97
2025.11    1.168    67.01
2025.21    1.154    68.07
2025.31    1.140    69.15
2025.41    1.126    70.26
2025.51    1.112    71.40
2025.61    1.098    72.57
2025.71    1.083    73.77
2025.81    1.069    75.00
2025.91    1.054    76.27
2026.01    1.039    77.57
2026.11    1.024    78.92
2026.21    1.009    80.30
2026.31    0.994    81.72
2026.41    0.979    83.19
2026.51    0.964    84.70
2026.61    0.949    86.26
2026.71    0.934    87.87
2026.81    0.920    89.53
2026.91    0.905    91.24
2027.01    0.891    93.01
2027.11    0.877    94.84
2027.21    0.863    96.73
2027.31    0.850    98.68
2027.41    0.836   100.68
2027.51    0.824   102.76
2027.61    0.812   104.89
2027.71    0.800   107.09
2027.81    0.789   109.35
2027.91    0.778   111.68
2028.01    0.768   114.07
2028.11    0.759   116.52
2028.21    0.750   119.02
2028.31    0.743   121.58
2028.41    0.736   124.20
2028.51    0.729   126.86
2028.61    0.724   129.56
2028.71    0.720   132.30
2028.81    0.716   135.07
2028.91    0.713   137.87
2029.01    0.711   140.68
2029.11    0.710   143.51
2029.21    0.710   146.35
2029.31    0.710   149.18
2029.41    0.711   152.01
2029.51    0.713   154.82
2029.61    0.715   157.62
2029.71    0.718   160.40
2029.81    0.722   163.15
2029.91    0.725   165.88
2030.01    0.729   168.58
2030.11    0.733   171.25
2030.21    0.737   173.88
2030.31    0.741   176.50
2030.41    0.745   179.08
2030.51    0.749   181.64
2030.61    0.752   184.17
2030.71    0.754   186.69
2030.81    0.755   189.20
2030.91    0.756   191.69
2031.01    0.756   194.19
2031.11    0.754   196.70
2031.21    0.751   199.22
2031.31    0.746   201.77
2031.41    0.740   204.35
2031.51    0.732   206.98
2031.61    0.722   209.68
2031.71    0.711   212.46
2031.81    0.697   215.34
2031.91    0.682   218.34
2032.01    0.665   221.49
2032.11    0.646   224.81
2032.21    0.625   228.35
2032.31    0.604   232.13
2032.41    0.581   236.19
2032.51    0.559   240.58
2032.61    0.536   245.35
2032.71    0.514   250.53
2032.81    0.494   256.15
2032.91    0.476   262.22
2033.01    0.461   268.73
2033.11    0.450   275.62
2033.21    0.443   282.79



 

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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 15:47:15


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