Double Star Calculator - Orbit

Orbital Elements for H219AB
WDS: H219AB WDS ID/Discoverer
P: 4193.435 Orbital period (years)
a: 12.63509 Semi-major axis (arcseconds)
i: 105.902 Inclination (degrees)
Ω: 88.335 Longitude of ascending node (degrees)
T: 2332.553 Epoch of periastron passage (year)
e: 0.89588 Eccentricity
ω: 244.218 Longitude of periastron (degrees)
Start-Year: -71.7172999999998 Year
End-Year: 4121.7173 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for H219AB
Position: 162535.03-232647.0 Epoch-2000 right ascension and declination
WDS-ID: 16256-2327 WDS designation
Discoverer Code: H219AB Discover designation and components
ADS number: 10049 Aitken Double Star catalog
HD number: 147933 HD catalog number
Hipparcos number: 80473 Hipparcos catalog number
V1: 5.07 Magnitude of the primary
V2: 5.74 Magnitude of the secondary
Equinox: Equinox
Date: 2012 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: Izm2019 Reference

Double Star Orbit for H219AB



WDS 6th Orbit including measures of H219AB

-- 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 H219AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.992   332.51
--------------------------
-71.72   12.796    62.10
-61.72   12.775    62.00
-51.72   12.754    61.90
-41.72   12.732    61.80
-31.72   12.710    61.69
-21.72   12.687    61.59
-11.72   12.664    61.49
-1.72   12.641    61.38
8.28   12.617    61.28
18.28   12.593    61.17
28.28   12.569    61.07
38.28   12.544    60.96
48.28   12.519    60.85
58.28   12.493    60.75
68.28   12.467    60.64
78.28   12.441    60.53
88.28   12.414    60.43
98.28   12.387    60.32
108.28   12.360    60.21
118.28   12.332    60.10
128.28   12.304    59.99
138.28   12.275    59.88
148.28   12.246    59.77
158.28   12.217    59.66
168.28   12.188    59.54
178.28   12.158    59.43
188.28   12.127    59.32
198.28   12.097    59.20
208.28   12.066    59.09
218.28   12.034    58.97
228.28   12.003    58.86
238.28   11.971    58.74
248.28   11.938    58.63
258.28   11.905    58.51
268.28   11.872    58.39
278.28   11.839    58.27
288.28   11.805    58.15
298.28   11.771    58.03
308.28   11.737    57.91
318.28   11.702    57.79
328.28   11.667    57.67
338.28   11.631    57.55
348.28   11.596    57.42
358.28   11.560    57.30
368.28   11.523    57.17
378.28   11.486    57.05
388.28   11.449    56.92
398.28   11.412    56.79
408.28   11.374    56.66
418.28   11.336    56.53
428.28   11.298    56.40
438.28   11.259    56.27
448.28   11.220    56.14
458.28   11.181    56.01
468.28   11.141    55.87
478.28   11.101    55.74
488.28   11.061    55.60
498.28   11.020    55.47
508.28   10.979    55.33
518.28   10.938    55.19
528.28   10.897    55.05
538.28   10.855    54.91
548.28   10.813    54.77
558.28   10.770    54.62
568.28   10.727    54.48
578.28   10.684    54.33
588.28   10.641    54.19
598.28   10.597    54.04
608.28   10.554    53.89
618.28   10.509    53.74
628.28   10.465    53.59
638.28   10.420    53.43
648.28   10.375    53.28
658.28   10.329    53.12
668.28   10.284    52.97
678.28   10.238    52.81
688.28   10.191    52.65
698.28   10.145    52.49
708.28   10.098    52.32
718.28   10.051    52.16
728.28   10.003    51.99
738.28    9.956    51.83
748.28    9.908    51.66
758.28    9.859    51.49
768.28    9.811    51.31
778.28    9.762    51.14
788.28    9.713    50.96
798.28    9.663    50.79
808.28    9.614    50.61
818.28    9.564    50.42
828.28    9.514    50.24
838.28    9.463    50.06
848.28    9.412    49.87
858.28    9.361    49.68
868.28    9.310    49.49
878.28    9.259    49.29
888.28    9.207    49.10
898.28    9.155    48.90
908.28    9.102    48.70
918.28    9.050    48.50
928.28    8.997    48.29
938.28    8.944    48.09
948.28    8.890    47.88
958.28    8.837    47.66
968.28    8.783    47.45
978.28    8.729    47.23
988.28    8.675    47.01
998.28    8.620    46.79
1008.28    8.565    46.56
1018.28    8.510    46.33
1028.28    8.455    46.10
1038.28    8.399    45.87
1048.28    8.343    45.63
1058.28    8.287    45.39
1068.28    8.231    45.14
1078.28    8.175    44.89
1088.28    8.118    44.64
1098.28    8.061    44.39
1108.28    8.004    44.13
1118.28    7.947    43.87
1128.28    7.889    43.60
1138.28    7.831    43.33
1148.28    7.773    43.06
1158.28    7.715    42.78
1168.28    7.657    42.50
1178.28    7.598    42.21
1188.28    7.539    41.92
1198.28    7.480    41.62
1208.28    7.421    41.32
1218.28    7.362    41.02
1228.28    7.302    40.71
1238.28    7.242    40.39
1248.28    7.183    40.07
1258.28    7.122    39.74
1268.28    7.062    39.41
1278.28    7.002    39.07
1288.28    6.941    38.73
1298.28    6.881    38.38
1308.28    6.820    38.03
1318.28    6.759    37.66
1328.28    6.698    37.29
1338.28    6.636    36.92
1348.28    6.575    36.54
1358.28    6.514    36.15
1368.28    6.452    35.75
1378.28    6.390    35.35
1388.28    6.328    34.93
1398.28    6.267    34.51
1408.28    6.205    34.08
1418.28    6.143    33.65
1428.28    6.080    33.20
1438.28    6.018    32.74
1448.28    5.956    32.28
1458.28    5.894    31.80
1468.28    5.832    31.32
1478.28    5.769    30.82
1488.28    5.707    30.31
1498.28    5.645    29.80
1508.28    5.583    29.27
1518.28    5.520    28.73
1528.28    5.458    28.17
1538.28    5.396    27.61
1548.28    5.334    27.03
1558.28    5.272    26.43
1568.28    5.210    25.83
1578.28    5.148    25.20
1588.28    5.087    24.57
1598.28    5.025    23.91
1608.28    4.964    23.24
1618.28    4.903    22.56
1628.28    4.842    21.86
1638.28    4.782    21.14
1648.28    4.721    20.40
1658.28    4.661    19.64
1668.28    4.602    18.86
1678.28    4.542    18.06
1688.28    4.483    17.24
1698.28    4.425    16.40
1708.28    4.367    15.54
1718.28    4.309    14.65
1728.28    4.252    13.74
1738.28    4.195    12.81
1748.28    4.139    11.85
1758.28    4.083    10.86
1768.28    4.029     9.84
1778.28    3.974     8.80
1788.28    3.921     7.73
1798.28    3.868     6.63
1808.28    3.816     5.50
1818.28    3.766     4.34
1828.28    3.715     3.15
1838.28    3.666     1.92
1848.28    3.618     0.66
1858.28    3.571   359.37
1868.28    3.526   358.05
1878.28    3.481   356.69
1888.28    3.438   355.29
1898.28    3.395   353.87
1908.28    3.355   352.40
1918.28    3.315   350.90
1928.28    3.278   349.36
1938.28    3.241   347.79
1948.28    3.206   346.19
1958.28    3.173   344.55
1968.28    3.142   342.87
1978.28    3.112   341.17
1988.28    3.084   339.43
1998.28    3.057   337.66
2008.28    3.033   335.86
2018.28    3.010   334.03
2028.28    2.989   332.18
2038.28    2.969   330.30
2048.28    2.952   328.39
2058.28    2.936   326.47
2068.28    2.922   324.52
2078.28    2.909   322.56
2088.28    2.898   320.58
2098.28    2.888   318.59
2108.28    2.880   316.58
2118.28    2.873   314.56
2128.28    2.866   312.54
2138.28    2.860   310.50
2148.28    2.854   308.46
2158.28    2.849   306.41
2168.28    2.843   304.35
2178.28    2.836   302.28
2188.28    2.827   300.20
2198.28    2.816   298.10
2208.28    2.802   295.99
2218.28    2.783   293.85
2228.28    2.759   291.67
2238.28    2.726   289.46
2248.28    2.683   287.18
2258.28    2.626   284.81
2268.28    2.551   282.33
2278.28    2.449   279.66
2288.28    2.310   276.72
2298.28    2.118   273.33
2308.28    1.845   269.09
2318.28    1.453   262.96
2328.28    0.914   250.64
2338.28    0.395   199.33
2348.28    0.734   120.95
2358.28    1.366   104.31
2368.28    1.951    98.09
2378.28    2.473    94.65
2388.28    2.941    92.36
2398.28    3.364    90.68
2408.28    3.750    89.36
2418.28    4.106    88.28
2428.28    4.436    87.36
2438.28    4.744    86.57
2448.28    5.034    85.87
2458.28    5.306    85.25
2468.28    5.564    84.68
2478.28    5.808    84.17
2488.28    6.041    83.69
2498.28    6.263    83.25
2508.28    6.476    82.84
2518.28    6.679    82.45
2528.28    6.874    82.09
2538.28    7.062    81.75
2548.28    7.243    81.42
2558.28    7.417    81.11
2568.28    7.585    80.81
2578.28    7.748    80.53
2588.28    7.905    80.26
2598.28    8.057    80.00
2608.28    8.204    79.74
2618.28    8.347    79.50
2628.28    8.485    79.26
2638.28    8.619    79.04
2648.28    8.750    78.81
2658.28    8.877    78.60
2668.28    9.000    78.39
2678.28    9.120    78.19
2688.28    9.236    77.99
2698.28    9.350    77.80
2708.28    9.460    77.61
2718.28    9.568    77.42
2728.28    9.673    77.24
2738.28    9.775    77.07
2748.28    9.875    76.89
2758.28    9.972    76.72
2768.28   10.067    76.56
2778.28   10.159    76.40
2788.28   10.249    76.24
2798.28   10.337    76.08
2808.28   10.423    75.92
2818.28   10.507    75.77
2828.28   10.589    75.62
2838.28   10.669    75.47
2848.28   10.747    75.33
2858.28   10.823    75.18
2868.28   10.898    75.04
2878.28   10.970    74.90
2888.28   11.041    74.77
2898.28   11.111    74.63
2908.28   11.179    74.50
2918.28   11.245    74.36
2928.28   11.310    74.23
2938.28   11.373    74.10
2948.28   11.435    73.97
2958.28   11.495    73.85
2968.28   11.554    73.72
2978.28   11.611    73.60
2988.28   11.668    73.47
2998.28   11.723    73.35
3008.28   11.776    73.23
3018.28   11.828    73.11
3028.28   11.880    72.99
3038.28   11.930    72.87
3048.28   11.978    72.76
3058.28   12.026    72.64
3068.28   12.072    72.53
3078.28   12.117    72.41
3088.28   12.162    72.30
3098.28   12.205    72.19
3108.28   12.247    72.08
3118.28   12.288    71.96
3128.28   12.328    71.85
3138.28   12.367    71.74
3148.28   12.405    71.64
3158.28   12.442    71.53
3168.28   12.477    71.42
3178.28   12.513    71.31
3188.28   12.547    71.21
3198.28   12.580    71.10
3208.28   12.612    71.00
3218.28   12.643    70.89
3228.28   12.674    70.79
3238.28   12.703    70.68
3248.28   12.732    70.58
3258.28   12.760    70.48
3268.28   12.787    70.38
3278.28   12.813    70.27
3288.28   12.839    70.17
3298.28   12.863    70.07
3308.28   12.887    69.97
3318.28   12.910    69.87
3328.28   12.933    69.77
3338.28   12.954    69.67
3348.28   12.975    69.57
3358.28   12.995    69.47
3368.28   13.014    69.37
3378.28   13.033    69.28
3388.28   13.050    69.18
3398.28   13.068    69.08
3408.28   13.084    68.98
3418.28   13.100    68.89
3428.28   13.115    68.79
3438.28   13.129    68.69
3448.28   13.143    68.59
3458.28   13.156    68.50
3468.28   13.168    68.40
3478.28   13.180    68.31
3488.28   13.191    68.21
3498.28   13.201    68.11
3508.28   13.211    68.02
3518.28   13.220    67.92
3528.28   13.229    67.83
3538.28   13.237    67.73
3548.28   13.244    67.64
3558.28   13.251    67.54
3568.28   13.257    67.45
3578.28   13.262    67.35
3588.28   13.267    67.26
3598.28   13.272    67.16
3608.28   13.275    67.07
3618.28   13.279    66.97
3628.28   13.281    66.88
3638.28   13.283    66.78
3648.28   13.285    66.69
3658.28   13.286    66.59
3668.28   13.286    66.50
3678.28   13.286    66.41
3688.28   13.285    66.31
3698.28   13.284    66.22
3708.28   13.283    66.12
3718.28   13.280    66.03
3728.28   13.278    65.93
3738.28   13.274    65.84
3748.28   13.271    65.74
3758.28   13.266    65.65
3768.28   13.262    65.55
3778.28   13.256    65.46
3788.28   13.251    65.36
3798.28   13.244    65.27
3808.28   13.238    65.17
3818.28   13.230    65.08
3828.28   13.223    64.98
3838.28   13.214    64.89
3848.28   13.206    64.79
3858.28   13.197    64.70
3868.28   13.187    64.60
3878.28   13.177    64.50
3888.28   13.166    64.41
3898.28   13.155    64.31
3908.28   13.144    64.22
3918.28   13.132    64.12
3928.28   13.120    64.02
3938.28   13.107    63.92
3948.28   13.094    63.83
3958.28   13.080    63.73
3968.28   13.066    63.63
3978.28   13.051    63.53
3988.28   13.036    63.44
3998.28   13.021    63.34
4008.28   13.005    63.24
4018.28   12.989    63.14
4028.28   12.972    63.04
4038.28   12.955    62.94
4048.28   12.937    62.84
4058.28   12.919    62.74
4068.28   12.901    62.64
4078.28   12.882    62.54
4088.28   12.863    62.44
4098.28   12.843    62.34
4108.28   12.823    62.24
4118.28   12.803    62.14






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.


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Report created: 2026-06-25 17:26:31



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