Double Star Calculator - Orbit

Orbital Elements for YR19AB
WDS: YR19AB WDS ID/Discoverer
P: 26.030 Orbital period (years)
a: 0.065 Semi-major axis (arcseconds)
i: 35.0 Inclination (degrees)
Ω: 56.6 Longitude of ascending node (degrees)
T: 2021.257 Epoch of periastron passage (year)
e: 0.859 Eccentricity
ω: 252.9 Longitude of periastron (degrees)
Start-Year: 2011.985 Year
End-Year: 2038.015 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for YR19AB
Position: 005135.24+441229.4 Epoch-2000 right ascension and declination
WDS-ID: 00516+4412 WDS designation
Discoverer Code: YR19AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 4901 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.7 Magnitude of the primary
V2: 9.7 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2023a Reference

Double Star Orbit for YR19AB



WDS 6th Orbit including measures of YR19AB

-- 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 YR19AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.080   104.58
--------------------------
2011.98    0.094   135.49
2012.08    0.094   135.77
2012.18    0.093   136.05
2012.28    0.093   136.33
2012.38    0.093   136.62
2012.48    0.092   136.91
2012.58    0.092   137.19
2012.68    0.092   137.49
2012.78    0.091   137.78
2012.88    0.091   138.07
2012.98    0.090   138.37
2013.08    0.090   138.68
2013.18    0.090   138.98
2013.28    0.089   139.29
2013.38    0.089   139.60
2013.48    0.088   139.91
2013.58    0.088   140.23
2013.68    0.087   140.55
2013.78    0.087   140.87
2013.88    0.086   141.20
2013.98    0.086   141.53
2014.08    0.085   141.86
2014.18    0.085   142.20
2014.28    0.084   142.54
2014.38    0.084   142.89
2014.48    0.083   143.24
2014.58    0.083   143.60
2014.68    0.082   143.96
2014.78    0.082   144.33
2014.88    0.081   144.70
2014.98    0.080   145.07
2015.08    0.080   145.46
2015.18    0.079   145.84
2015.28    0.079   146.24
2015.38    0.078   146.64
2015.48    0.077   147.04
2015.58    0.077   147.46
2015.68    0.076   147.88
2015.78    0.075   148.31
2015.88    0.075   148.74
2015.98    0.074   149.19
2016.08    0.073   149.64
2016.18    0.072   150.10
2016.28    0.072   150.57
2016.38    0.071   151.06
2016.48    0.070   151.55
2016.58    0.069   152.05
2016.68    0.069   152.56
2016.78    0.068   153.09
2016.88    0.067   153.62
2016.98    0.066   154.18
2017.08    0.065   154.74
2017.18    0.065   155.32
2017.28    0.064   155.92
2017.38    0.063   156.53
2017.48    0.062   157.16
2017.58    0.061   157.80
2017.68    0.060   158.47
2017.78    0.059   159.16
2017.88    0.058   159.87
2017.98    0.057   160.61
2018.08    0.056   161.37
2018.18    0.055   162.16
2018.28    0.054   162.97
2018.38    0.053   163.82
2018.48    0.052   164.71
2018.58    0.051   165.63
2018.68    0.050   166.59
2018.78    0.049   167.60
2018.88    0.048   168.66
2018.98    0.046   169.77
2019.08    0.045   170.94
2019.18    0.044   172.17
2019.28    0.043   173.48
2019.38    0.041   174.86
2019.48    0.040   176.34
2019.58    0.039   177.92
2019.68    0.037   179.62
2019.78    0.036   181.45
2019.88    0.034   183.44
2019.98    0.033   185.61
2020.08    0.031   187.99
2020.18    0.030   190.64
2020.28    0.028   193.59
2020.38    0.026   196.93
2020.48    0.024   200.76
2020.58    0.022   205.23
2020.68    0.020   210.56
2020.78    0.018   217.10
2020.88    0.016   225.44
2020.98    0.014   236.66
2021.08    0.011   253.00
2021.18    0.009   278.90
2021.28    0.008   317.86
2021.38    0.009   355.96
2021.48    0.012    20.16
2021.58    0.015    34.76
2021.68    0.017    44.40
2021.78    0.020    51.33
2021.88    0.023    56.64
2021.98    0.025    60.88
2022.08    0.028    64.40
2022.18    0.030    67.39
2022.28    0.032    69.98
2022.38    0.034    72.25
2022.48    0.036    74.28
2022.58    0.038    76.11
2022.68    0.039    77.78
2022.78    0.041    79.30
2022.88    0.043    80.71
2022.98    0.044    82.01
2023.08    0.046    83.22
2023.18    0.047    84.36
2023.28    0.049    85.43
2023.38    0.050    86.44
2023.48    0.051    87.40
2023.58    0.053    88.31
2023.68    0.054    89.17
2023.78    0.055    90.00
2023.88    0.056    90.79
2023.98    0.058    91.54
2024.08    0.059    92.27
2024.18    0.060    92.97
2024.28    0.061    93.64
2024.38    0.062    94.29
2024.48    0.063    94.92
2024.58    0.064    95.53
2024.68    0.065    96.12
2024.78    0.066    96.69
2024.88    0.067    97.24
2024.98    0.068    97.78
2025.08    0.069    98.31
2025.18    0.070    98.82
2025.28    0.071    99.32
2025.38    0.071    99.81
2025.48    0.072   100.28
2025.58    0.073   100.75
2025.68    0.074   101.20
2025.78    0.075   101.65
2025.88    0.075   102.08
2025.98    0.076   102.51
2026.08    0.077   102.93
2026.18    0.078   103.34
2026.28    0.078   103.74
2026.38    0.079   104.14
2026.48    0.080   104.52
2026.58    0.080   104.91
2026.68    0.081   105.28
2026.78    0.082   105.65
2026.88    0.082   106.02
2026.98    0.083   106.38
2027.08    0.083   106.73
2027.18    0.084   107.08
2027.28    0.085   107.43
2027.38    0.085   107.77
2027.48    0.086   108.10
2027.58    0.086   108.43
2027.68    0.087   108.76
2027.78    0.087   109.08
2027.88    0.088   109.40
2027.98    0.088   109.72
2028.08    0.089   110.03
2028.18    0.089   110.34
2028.28    0.090   110.64
2028.38    0.090   110.95
2028.48    0.091   111.25
2028.58    0.091   111.54
2028.68    0.091   111.84
2028.78    0.092   112.13
2028.88    0.092   112.42
2028.98    0.093   112.70
2029.08    0.093   112.99
2029.18    0.093   113.27
2029.28    0.094   113.55
2029.38    0.094   113.83
2029.48    0.094   114.10
2029.58    0.095   114.38
2029.68    0.095   114.65
2029.78    0.095   114.92
2029.88    0.096   115.19
2029.98    0.096   115.45
2030.08    0.096   115.72
2030.18    0.097   115.98
2030.28    0.097   116.24
2030.38    0.097   116.50
2030.48    0.097   116.76
2030.58    0.098   117.02
2030.68    0.098   117.28
2030.78    0.098   117.53
2030.88    0.098   117.78
2030.98    0.099   118.04
2031.08    0.099   118.29
2031.18    0.099   118.54
2031.28    0.099   118.79
2031.38    0.099   119.04
2031.48    0.099   119.29
2031.58    0.100   119.53
2031.68    0.100   119.78
2031.78    0.100   120.03
2031.88    0.100   120.27
2031.98    0.100   120.52
2032.08    0.100   120.76
2032.18    0.100   121.00
2032.28    0.101   121.25
2032.38    0.101   121.49
2032.48    0.101   121.73
2032.58    0.101   121.97
2032.68    0.101   122.21
2032.78    0.101   122.45
2032.88    0.101   122.69
2032.98    0.101   122.93
2033.08    0.101   123.17
2033.18    0.101   123.41
2033.28    0.101   123.65
2033.38    0.101   123.89
2033.48    0.101   124.13
2033.58    0.101   124.37
2033.68    0.101   124.61
2033.78    0.101   124.85
2033.88    0.101   125.09
2033.98    0.101   125.33
2034.08    0.101   125.57
2034.18    0.101   125.81
2034.28    0.101   126.05
2034.38    0.101   126.29
2034.48    0.101   126.53
2034.58    0.101   126.77
2034.68    0.101   127.01
2034.78    0.101   127.25
2034.88    0.101   127.49
2034.98    0.101   127.73
2035.08    0.100   127.98
2035.18    0.100   128.22
2035.28    0.100   128.46
2035.38    0.100   128.71
2035.48    0.100   128.95
2035.58    0.100   129.20
2035.68    0.100   129.45
2035.78    0.099   129.69
2035.88    0.099   129.94
2035.98    0.099   130.19
2036.08    0.099   130.44
2036.18    0.099   130.69
2036.28    0.099   130.94
2036.38    0.098   131.19
2036.48    0.098   131.45
2036.58    0.098   131.70
2036.68    0.098   131.96
2036.78    0.098   132.22
2036.88    0.097   132.47
2036.98    0.097   132.73
2037.08    0.097   132.99
2037.18    0.097   133.26
2037.28    0.096   133.52
2037.38    0.096   133.79
2037.48    0.096   134.05
2037.58    0.095   134.32
2037.68    0.095   134.59
2037.78    0.095   134.86
2037.88    0.094   135.14
2037.98    0.094   135.41






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 14:44:01



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