Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:27:48

Orbital Elements for HN28AB
WDS: HN28AB WDS ID/Discoverer
P: 6488.554 Orbital period (years)
a: 86.7648 Semi-major axis (arcseconds)
i: 80.9435 Inclination (degrees)
Ω: 134.1985 Longitude of ascending node (degrees)
T: 2152.763 Epoch of periastron passage (year)
e: 0.6598 Eccentricity
ω: 185.0814 Longitude of periastron (degrees)
Start-Year: -1219.0 Year
End-Year: 5269.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HN28AB
Position: 145728.00-212455.7 Epoch-2000 right ascension and declination
WDS-ID: 14575-2125 WDS designation
Discoverer Code: HN28AB Discover designation and components
ADS number: 9446 Aitken Double Star catalog
HD number: 131977 HD catalog number
Hipparcos number: 73184 Hipparcos catalog number
V1: 5.88 Magnitude of the primary
V2: 8.18 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HN28AB



WDS 6th Orbit including measures of HN28AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of HN28AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0    26.335    307.3
-------------------------
-1219.0    143.642    134.7
-1209.0    143.645    134.7
-1199.0    143.645    134.7
-1189.0    143.642    134.8
-1179.0    143.636    134.8
-1169.0    143.627    134.8
-1159.0    143.616    134.8
-1149.0    143.601    134.9
-1139.0    143.583    134.9
-1129.0    143.563    134.9
-1119.0    143.540    134.9
-1109.0    143.513    135.0
-1099.0    143.484    135.0
-1089.0    143.452    135.0
-1079.0    143.417    135.0
-1069.0    143.379    135.1
-1059.0    143.338    135.1
-1049.0    143.294    135.1
-1039.0    143.248    135.1
-1029.0    143.198    135.2
-1019.0    143.145    135.2
-1009.0    143.090    135.2
-999.0    143.032    135.2
-989.0    142.970    135.2
-979.0    142.906    135.3
-969.0    142.839    135.3
-959.0    142.769    135.3
-949.0    142.696    135.3
-939.0    142.620    135.4
-929.0    142.542    135.4
-919.0    142.460    135.4
-909.0    142.375    135.4
-899.0    142.288    135.5
-889.0    142.197    135.5
-879.0    142.104    135.5
-869.0    142.008    135.5
-859.0    141.909    135.6
-849.0    141.807    135.6
-839.0    141.702    135.6
-829.0    141.594    135.6
-819.0    141.483    135.7
-809.0    141.369    135.7
-799.0    141.253    135.7
-789.0    141.133    135.7
-779.0    141.011    135.8
-769.0    140.885    135.8
-759.0    140.757    135.8
-749.0    140.625    135.8
-739.0    140.491    135.9
-729.0    140.354    135.9
-719.0    140.214    135.9
-709.0    140.071    135.9
-699.0    139.925    136.0
-689.0    139.776    136.0
-679.0    139.625    136.0
-669.0    139.470    136.0
-659.0    139.312    136.1
-649.0    139.152    136.1
-639.0    138.988    136.1
-629.0    138.821    136.1
-619.0    138.652    136.2
-609.0    138.480    136.2
-599.0    138.304    136.2
-589.0    138.126    136.2
-579.0    137.945    136.3
-569.0    137.761    136.3
-559.0    137.573    136.3
-549.0    137.383    136.3
-539.0    137.190    136.4
-529.0    136.994    136.4
-519.0    136.795    136.4
-509.0    136.593    136.5
-499.0    136.388    136.5
-489.0    136.180    136.5
-479.0    135.969    136.5
-469.0    135.755    136.6
-459.0    135.538    136.6
-449.0    135.318    136.6
-439.0    135.096    136.6
-429.0    134.870    136.7
-419.0    134.641    136.7
-409.0    134.409    136.7
-399.0    134.174    136.7
-389.0    133.936    136.8
-379.0    133.695    136.8
-369.0    133.451    136.8
-359.0    133.204    136.9
-349.0    132.954    136.9
-339.0    132.701    136.9
-329.0    132.445    136.9
-319.0    132.186    137.0
-309.0    131.924    137.0
-299.0    131.659    137.0
-289.0    131.391    137.1
-279.0    131.119    137.1
-269.0    130.845    137.1
-259.0    130.568    137.1
-249.0    130.287    137.2
-239.0    130.004    137.2
-229.0    129.717    137.2
-219.0    129.428    137.3
-209.0    129.135    137.3
-199.0    128.839    137.3
-189.0    128.540    137.3
-179.0    128.238    137.4
-169.0    127.933    137.4
-159.0    127.625    137.4
-149.0    127.313    137.5
-139.0    126.999    137.5
-129.0    126.681    137.5
-119.0    126.361    137.6
-109.0    126.037    137.6
-99.0     125.710    137.6
-89.0     125.380    137.7
-79.0     125.047    137.7
-69.0     124.710    137.7
-59.0     124.371    137.8
-49.0     124.028    137.8
-39.0     123.682    137.8
-29.0     123.333    137.8
-19.0     122.980    137.9
-9.0      122.625    137.9
1.0       122.266    137.9
11.0      121.904    138.0
21.0      121.539    138.0
31.0      121.171    138.0
41.0      120.799    138.1
51.0      120.425    138.1
61.0      120.047    138.1
71.0      119.665    138.2
81.0      119.281    138.2
91.0      118.893    138.3
101.0     118.502    138.3
111.0     118.108    138.3
121.0     117.710    138.4
131.0     117.309    138.4
141.0     116.905    138.4
151.0     116.498    138.5
161.0     116.087    138.5
171.0     115.673    138.5
181.0     115.255    138.6
191.0     114.834    138.6
201.0     114.410    138.7
211.0     113.983    138.7
221.0     113.552    138.7
231.0     113.118    138.8
241.0     112.680    138.8
251.0     112.239    138.8
261.0     111.795    138.9
271.0     111.347    138.9
281.0     110.896    139.0
291.0     110.442    139.0
301.0     109.984    139.0
311.0     109.522    139.1
321.0     109.057    139.1
331.0     108.589    139.2
341.0     108.117    139.2
351.0     107.642    139.3
361.0     107.163    139.3
371.0     106.681    139.3
381.0     106.195    139.4
391.0     105.706    139.4
401.0     105.213    139.5
411.0     104.717    139.5
421.0     104.217    139.6
431.0     103.713    139.6
441.0     103.206    139.7
451.0     102.696    139.7
461.0     102.181    139.7
471.0     101.664    139.8
481.0     101.142    139.8
491.0     100.617    139.9
501.0     100.089    139.9
511.0     99.556    140.0
521.0     99.020    140.0
531.0     98.481    140.1
541.0     97.938    140.1
551.0     97.391    140.2
561.0     96.840    140.2
571.0     96.286    140.3
581.0     95.728    140.4
591.0     95.166    140.4
601.0     94.600    140.5
611.0     94.031    140.5
621.0     93.458    140.6
631.0     92.881    140.6
641.0     92.300    140.7
651.0     91.716    140.7
661.0     91.127    140.8
671.0     90.535    140.9
681.0     89.939    140.9
691.0     89.339    141.0
701.0     88.736    141.0
711.0     88.128    141.1
721.0     87.516    141.2
731.0     86.901    141.2
741.0     86.282    141.3
751.0     85.658    141.4
761.0     85.031    141.4
771.0     84.400    141.5
781.0     83.765    141.6
791.0     83.126    141.7
801.0     82.482    141.7
811.0     81.835    141.8
821.0     81.184    141.9
831.0     80.529    141.9
841.0     79.869    142.0
851.0     79.206    142.1
861.0     78.538    142.2
871.0     77.867    142.3
881.0     77.191    142.3
891.0     76.511    142.4
901.0     75.827    142.5
911.0     75.139    142.6
921.0     74.446    142.7
931.0     73.750    142.8
941.0     73.049    142.9
951.0     72.344    143.0
961.0     71.635    143.1
971.0     70.922    143.2
981.0     70.204    143.3
991.0     69.482    143.4
1001.0    68.756    143.5
1011.0    68.025    143.6
1021.0    67.291    143.7
1031.0    66.551    143.8
1041.0    65.808    143.9
1051.0    65.060    144.0
1061.0    64.308    144.1
1071.0    63.552    144.2
1081.0    62.791    144.4
1091.0    62.026    144.5
1101.0    61.256    144.6
1111.0    60.482    144.8
1121.0    59.704    144.9
1131.0    58.921    145.0
1141.0    58.134    145.2
1151.0    57.342    145.3
1161.0    56.547    145.5
1171.0    55.746    145.6
1181.0    54.941    145.8
1191.0    54.132    146.0
1201.0    53.319    146.1
1211.0    52.501    146.3
1221.0    51.678    146.5
1231.0    50.851    146.7
1241.0    50.020    146.9
1251.0    49.185    147.1
1261.0    48.345    147.3
1271.0    47.501    147.5
1281.0    46.652    147.7
1291.0    45.799    148.0
1301.0    44.942    148.2
1311.0    44.081    148.4
1321.0    43.215    148.7
1331.0    42.345    149.0
1341.0    41.472    149.3
1351.0    40.594    149.6
1361.0    39.712    149.9
1371.0    38.826    150.2
1381.0    37.937    150.5
1391.0    37.043    150.9
1401.0    36.146    151.2
1411.0    35.246    151.6
1421.0    34.342    152.0
1431.0    33.435    152.5
1441.0    32.524    152.9
1451.0    31.611    153.4
1461.0    30.695    153.9
1471.0    29.777    154.4
1481.0    28.856    155.0
1491.0    27.933    155.6
1501.0    27.009    156.3
1511.0    26.084    157.0
1521.0    25.157    157.7
1531.0    24.231    158.6
1541.0    23.305    159.4
1551.0    22.380    160.4
1561.0    21.456    161.4
1571.0    20.536    162.5
1581.0    19.619    163.8
1591.0    18.708    165.1
1601.0    17.803    166.6
1611.0    16.908    168.2
1621.0    16.023    170.0
1631.0    15.152    172.1
1641.0    14.298    174.4
1651.0    13.466    176.9
1661.0    12.660    179.8
1671.0    11.887    183.1
1681.0    11.155    186.8
1691.0    10.472    191.1
1701.0     9.851    195.9
1711.0     9.304    201.3
1721.0     8.846    207.3
1731.0     8.492    213.9
1741.0     8.255    220.9
1751.0     8.147    228.3
1761.0     8.172    235.7
1771.0     8.329    243.0
1781.0     8.610    249.9
1791.0     9.003    256.3
1801.0     9.493    262.1
1811.0    10.065    267.3
1821.0    10.704    271.9
1831.0    11.397    275.9
1841.0    12.134    279.5
1851.0    12.904    282.7
1861.0    13.699    285.5
1871.0    14.513    287.9
1881.0    15.341    290.2
1891.0    16.176    292.1
1901.0    17.016    293.9
1911.0    17.854    295.6
1921.0    18.689    297.0
1931.0    19.516    298.4
1941.0    20.333    299.6
1951.0    21.136    300.8
1961.0    21.921    301.9
1971.0    22.687    302.9
1981.0    23.429    303.8
1991.0    24.144    304.7
2001.0    24.830    305.5
2011.0    25.483    306.3
2021.0    26.099    307.0
2031.0    26.677    307.7
2041.0    27.211    308.4
2051.0    27.699    309.1
2061.0    28.138    309.7
2071.0    28.524    310.3
2081.0    28.855    310.9
2091.0    29.128    311.5
2101.0    29.340    312.1
2111.0    29.490    312.6
2121.0    29.575    313.2
2131.0    29.594    313.8
2141.0    29.546    314.3
2151.0    29.431    314.9
2161.0    29.250    315.5
2171.0    29.001    316.1
2181.0    28.687    316.6
2191.0    28.309    317.3
2201.0    27.870    317.9
2211.0    27.371    318.5
2221.0    26.815    319.2
2231.0    26.205    319.9
2241.0    25.546    320.6
2251.0    24.839    321.4
2261.0    24.089    322.2
2271.0    23.300    323.1
2281.0    22.476    324.1
2291.0    21.619    325.1
2301.0    20.735    326.2
2311.0    19.827    327.4
2321.0    18.899    328.7
2331.0    17.956    330.2
2341.0    17.002    331.8
2351.0    16.041    333.6
2361.0    15.079    335.6
2371.0    14.122    338.0
2381.0    13.176    340.6
2391.0    12.249    343.7
2401.0    11.350    347.2
2411.0    10.493    351.4
2421.0     9.690    356.2
2431.0     8.962      1.9
2441.0     8.330      8.6
2451.0     7.821     16.2
2461.0     7.461     24.7
2471.0     7.274     33.8
2481.0     7.275     43.2
2491.0     7.463     52.3
2501.0     7.824     60.8
2511.0     8.336     68.4
2521.0     8.972     75.0
2531.0     9.707     80.7
2541.0    10.519     85.6
2551.0    11.389     89.7
2561.0    12.306     93.2
2571.0    13.257     96.2
2581.0    14.234     98.9
2591.0    15.232    101.1
2601.0    16.245    103.1
2611.0    17.270    104.9
2621.0    18.303    106.5
2631.0    19.341    107.9
2641.0    20.384    109.1
2651.0    21.429    110.2
2661.0    22.476    111.3
2671.0    23.522    112.2
2681.0    24.567    113.1
2691.0    25.611    113.8
2701.0    26.652    114.6
2711.0    27.691    115.2
2721.0    28.726    115.9
2731.0    29.757    116.4
2741.0    30.785    117.0
2751.0    31.808    117.5
2761.0    32.826    118.0
2771.0    33.840    118.4
2781.0    34.849    118.8
2791.0    35.852    119.2
2801.0    36.851    119.6
2811.0    37.843    119.9
2821.0    38.831    120.3
2831.0    39.813    120.6
2841.0    40.789    120.9
2851.0    41.759    121.2
2861.0    42.724    121.5
2871.0    43.683    121.7
2881.0    44.636    122.0
2891.0    45.583    122.2
2901.0    46.525    122.5
2911.0    47.460    122.7
2921.0    48.389    122.9
2931.0    49.313    123.1
2941.0    50.231    123.3
2951.0    51.142    123.5
2961.0    52.048    123.7
2971.0    52.948    123.9
2981.0    53.842    124.0
2991.0    54.730    124.2
3001.0    55.612    124.4
3011.0    56.489    124.5
3021.0    57.359    124.7
3031.0    58.224    124.8
3041.0    59.083    125.0
3051.0    59.936    125.1
3061.0    60.783    125.2
3071.0    61.625    125.4
3081.0    62.461    125.5
3091.0    63.291    125.6
3101.0    64.115    125.8
3111.0    64.934    125.9
3121.0    65.747    126.0
3131.0    66.555    126.1
3141.0    67.357    126.2
3151.0    68.154    126.3
3161.0    68.945    126.4
3171.0    69.730    126.5
3181.0    70.510    126.6
3191.0    71.285    126.7
3201.0    72.054    126.8
3211.0    72.818    126.9
3221.0    73.576    127.0
3231.0    74.330    127.1
3241.0    75.077    127.2
3251.0    75.820    127.3
3261.0    76.558    127.4
3271.0    77.290    127.4
3281.0    78.017    127.5
3291.0    78.739    127.6
3301.0    79.455    127.7
3311.0    80.167    127.8
3321.0    80.874    127.8
3331.0    81.575    127.9
3341.0    82.272    128.0
3351.0    82.963    128.1
3361.0    83.650    128.1
3371.0    84.331    128.2
3381.0    85.008    128.3
3391.0    85.680    128.3
3401.0    86.347    128.4
3411.0    87.009    128.5
3421.0    87.666    128.5
3431.0    88.319    128.6
3441.0    88.967    128.7
3451.0    89.610    128.7
3461.0    90.248    128.8
3471.0    90.882    128.8
3481.0    91.511    128.9
3491.0    92.135    129.0
3501.0    92.755    129.0
3511.0    93.370    129.1
3521.0    93.980    129.1
3531.0    94.586    129.2
3541.0    95.188    129.2
3551.0    95.785    129.3
3561.0    96.377    129.4
3571.0    96.965    129.4
3581.0    97.548    129.5
3591.0    98.128    129.5
3601.0    98.702    129.6
3611.0    99.273    129.6
3621.0    99.839    129.7
3631.0    100.400    129.7
3641.0    100.958    129.8
3651.0    101.511    129.8
3661.0    102.059    129.9
3671.0    102.604    129.9
3681.0    103.144    129.9
3691.0    103.680    130.0
3701.0    104.212    130.0
3711.0    104.739    130.1
3721.0    105.263    130.1
3731.0    105.782    130.2
3741.0    106.297    130.2
3751.0    106.808    130.3
3761.0    107.315    130.3
3771.0    107.818    130.3
3781.0    108.317    130.4
3791.0    108.812    130.4
3801.0    109.302    130.5
3811.0    109.789    130.5
3821.0    110.272    130.6
3831.0    110.750    130.6
3841.0    111.225    130.6
3851.0    111.696    130.7
3861.0    112.163    130.7
3871.0    112.626    130.8
3881.0    113.085    130.8
3891.0    113.540    130.8
3901.0    113.991    130.9
3911.0    114.439    130.9
3921.0    114.882    130.9
3931.0    115.322    131.0
3941.0    115.758    131.0
3951.0    116.190    131.1
3961.0    116.619    131.1
3971.0    117.043    131.1
3981.0    117.464    131.2
3991.0    117.881    131.2
4001.0    118.294    131.2
4011.0    118.704    131.3
4021.0    119.110    131.3
4031.0    119.512    131.3
4041.0    119.911    131.4
4051.0    120.305    131.4
4061.0    120.697    131.4
4071.0    121.084    131.5
4081.0    121.468    131.5
4091.0    121.848    131.5
4101.0    122.225    131.6
4111.0    122.598    131.6
4121.0    122.967    131.6
4131.0    123.333    131.7
4141.0    123.696    131.7
4151.0    124.055    131.7
4161.0    124.410    131.8
4171.0    124.761    131.8
4181.0    125.110    131.8
4191.0    125.454    131.9
4201.0    125.795    131.9
4211.0    126.133    131.9
4221.0    126.467    132.0
4231.0    126.798    132.0
4241.0    127.125    132.0
4251.0    127.449    132.1
4261.0    127.769    132.1
4271.0    128.086    132.1
4281.0    128.400    132.1
4291.0    128.710    132.2
4301.0    129.017    132.2
4311.0    129.320    132.2
4321.0    129.620    132.3
4331.0    129.916    132.3
4341.0    130.210    132.3
4351.0    130.499    132.3
4361.0    130.786    132.4
4371.0    131.069    132.4
4381.0    131.349    132.4
4391.0    131.625    132.5
4401.0    131.898    132.5
4411.0    132.168    132.5
4421.0    132.434    132.5
4431.0    132.698    132.6
4441.0    132.958    132.6
4451.0    133.214    132.6
4461.0    133.468    132.7
4471.0    133.718    132.7
4481.0    133.964    132.7
4491.0    134.208    132.7
4501.0    134.448    132.8
4511.0    134.686    132.8
4521.0    134.919    132.8
4531.0    135.150    132.9
4541.0    135.377    132.9
4551.0    135.602    132.9
4561.0    135.823    132.9
4571.0    136.041    133.0
4581.0    136.255    133.0
4591.0    136.467    133.0
4601.0    136.675    133.0
4611.0    136.880    133.1
4621.0    137.082    133.1
4631.0    137.281    133.1
4641.0    137.476    133.1
4651.0    137.669    133.2
4661.0    137.858    133.2
4671.0    138.044    133.2
4681.0    138.227    133.2
4691.0    138.407    133.3
4701.0    138.584    133.3
4711.0    138.758    133.3
4721.0    138.928    133.4
4731.0    139.096    133.4
4741.0    139.260    133.4
4751.0    139.421    133.4
4761.0    139.580    133.5
4771.0    139.735    133.5
4781.0    139.887    133.5
4791.0    140.036    133.5
4801.0    140.182    133.6
4811.0    140.324    133.6
4821.0    140.464    133.6
4831.0    140.601    133.6
4841.0    140.735    133.7
4851.0    140.865    133.7
4861.0    140.993    133.7
4871.0    141.117    133.7
4881.0    141.239    133.8
4891.0    141.357    133.8
4901.0    141.473    133.8
4911.0    141.585    133.8
4921.0    141.694    133.9
4931.0    141.801    133.9
4941.0    141.904    133.9
4951.0    142.004    133.9
4961.0    142.102    134.0
4971.0    142.196    134.0
4981.0    142.287    134.0
4991.0    142.375    134.0
5001.0    142.461    134.0
5011.0    142.543    134.1
5021.0    142.622    134.1
5031.0    142.699    134.1
5041.0    142.772    134.1
5051.0    142.843    134.2
5061.0    142.910    134.2
5071.0    142.974    134.2
5081.0    143.036    134.2
5091.0    143.094    134.3
5101.0    143.150    134.3
5111.0    143.202    134.3
5121.0    143.252    134.3
5131.0    143.299    134.4
5141.0    143.342    134.4
5151.0    143.383    134.4
5161.0    143.421    134.4
5171.0    143.456    134.5
5181.0    143.488    134.5
5191.0    143.517    134.5
5201.0    143.543    134.5
5211.0    143.566    134.6
5221.0    143.586    134.6
5231.0    143.603    134.6
5241.0    143.617    134.6
5251.0    143.629    134.7
5261.0    143.637    134.7






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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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