Double Star Calculator - Orbit

Orbital Elements for I529
WDS: I529 WDS ID/Discoverer
P: 2507.260 Orbital period (years)
a: 2.657 Semi-major axis (arcseconds)
i: 166.66 Inclination (degrees)
Ω: 76.71 Longitude of ascending node (degrees)
T: 1944.060 Epoch of periastron passage (year)
e: 0.9329 Eccentricity
ω: 257.23 Longitude of periastron (degrees)
Start-Year: 771.3699999999999 Year
End-Year: 3278.63 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I529
Position: 145103.30-370549.7 Epoch-2000 right ascension and declination
WDS-ID: 14511-3706 WDS designation
Discoverer Code: I529 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 130779 HD catalog number
Hipparcos number: 72639 Hipparcos catalog number
V1: 9.64 Magnitude of the primary
V2: 10.00 Magnitude of the secondary
Equinox: 1900 Equinox
Date: 1975 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: Dom1978 Reference

Double Star Orbit for I529



WDS 6th Orbit including measures of I529

-- 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 I529
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.269    38.63
--------------------------
771.37    4.990   358.67
781.37    4.986   358.53
791.37    4.982   358.39
801.37    4.977   358.24
811.37    4.973   358.10
821.37    4.967   357.96
831.37    4.962   357.81
841.37    4.956   357.67
851.37    4.949   357.52
861.37    4.942   357.38
871.37    4.935   357.23
881.37    4.927   357.08
891.37    4.919   356.94
901.37    4.910   356.79
911.37    4.901   356.64
921.37    4.892   356.50
931.37    4.882   356.35
941.37    4.872   356.20
951.37    4.861   356.05
961.37    4.850   355.90
971.37    4.839   355.75
981.37    4.827   355.59
991.37    4.814   355.44
1001.37    4.801   355.29
1011.37    4.788   355.13
1021.37    4.774   354.98
1031.37    4.760   354.82
1041.37    4.746   354.66
1051.37    4.731   354.51
1061.37    4.715   354.35
1071.37    4.699   354.19
1081.37    4.683   354.02
1091.37    4.666   353.86
1101.37    4.649   353.70
1111.37    4.631   353.53
1121.37    4.613   353.37
1131.37    4.594   353.20
1141.37    4.575   353.03
1151.37    4.555   352.86
1161.37    4.535   352.69
1171.37    4.514   352.51
1181.37    4.493   352.34
1191.37    4.472   352.16
1201.37    4.449   351.98
1211.37    4.427   351.80
1221.37    4.404   351.62
1231.37    4.380   351.44
1241.37    4.356   351.25
1251.37    4.331   351.06
1261.37    4.306   350.87
1271.37    4.280   350.68
1281.37    4.254   350.48
1291.37    4.227   350.29
1301.37    4.200   350.09
1311.37    4.172   349.88
1321.37    4.143   349.68
1331.37    4.114   349.47
1341.37    4.084   349.26
1351.37    4.054   349.04
1361.37    4.023   348.83
1371.37    3.991   348.61
1381.37    3.959   348.38
1391.37    3.926   348.15
1401.37    3.893   347.92
1411.37    3.859   347.68
1421.37    3.824   347.44
1431.37    3.789   347.20
1441.37    3.753   346.95
1451.37    3.716   346.69
1461.37    3.678   346.43
1471.37    3.640   346.17
1481.37    3.601   345.90
1491.37    3.562   345.62
1501.37    3.521   345.34
1511.37    3.480   345.05
1521.37    3.438   344.75
1531.37    3.395   344.45
1541.37    3.351   344.13
1551.37    3.306   343.81
1561.37    3.261   343.48
1571.37    3.215   343.14
1581.37    3.167   342.80
1591.37    3.119   342.44
1601.37    3.070   342.07
1611.37    3.019   341.68
1621.37    2.968   341.29
1631.37    2.915   340.88
1641.37    2.862   340.45
1651.37    2.807   340.01
1661.37    2.751   339.55
1671.37    2.694   339.07
1681.37    2.635   338.57
1691.37    2.576   338.04
1701.37    2.514   337.50
1711.37    2.452   336.92
1721.37    2.387   336.31
1731.37    2.321   335.67
1741.37    2.254   334.99
1751.37    2.184   334.27
1761.37    2.113   333.50
1771.37    2.040   332.68
1781.37    1.964   331.79
1791.37    1.886   330.83
1801.37    1.806   329.79
1811.37    1.723   328.65
1821.37    1.637   327.39
1831.37    1.547   325.99
1841.37    1.455   324.41
1851.37    1.358   322.61
1861.37    1.257   320.53
1871.37    1.150   318.08
1881.37    1.038   315.11
1891.37    0.919   311.39
1901.37    0.792   306.52
1911.37    0.655   299.69
1921.37    0.504   288.98
1931.37    0.340   268.37
1941.37    0.187   209.83
1951.37    0.247   112.74
1961.37    0.419    78.42
1971.37    0.581    63.91
1981.37    0.728    55.54
1991.37    0.862    49.89
2001.37    0.987    45.72
2011.37    1.104    42.46
2021.37    1.214    39.81
2031.37    1.319    37.60
2041.37    1.419    35.70
2051.37    1.514    34.05
2061.37    1.606    32.59
2071.37    1.694    31.28
2081.37    1.780    30.11
2091.37    1.862    29.04
2101.37    1.941    28.05
2111.37    2.019    27.15
2121.37    2.093    26.31
2131.37    2.166    25.52
2141.37    2.237    24.79
2151.37    2.306    24.10
2161.37    2.373    23.45
2171.37    2.438    22.84
2181.37    2.502    22.26
2191.37    2.564    21.70
2201.37    2.624    21.17
2211.37    2.684    20.67
2221.37    2.742    20.19
2231.37    2.798    19.72
2241.37    2.854    19.28
2251.37    2.908    18.85
2261.37    2.961    18.44
2271.37    3.013    18.04
2281.37    3.064    17.66
2291.37    3.113    17.28
2301.37    3.162    16.92
2311.37    3.210    16.57
2321.37    3.257    16.23
2331.37    3.303    15.90
2341.37    3.348    15.58
2351.37    3.392    15.27
2361.37    3.435    14.96
2371.37    3.478    14.67
2381.37    3.519    14.38
2391.37    3.560    14.09
2401.37    3.600    13.82
2411.37    3.639    13.54
2421.37    3.678    13.28
2431.37    3.715    13.02
2441.37    3.752    12.76
2451.37    3.789    12.51
2461.37    3.824    12.27
2471.37    3.859    12.03
2481.37    3.893    11.79
2491.37    3.927    11.56
2501.37    3.960    11.33
2511.37    3.992    11.11
2521.37    4.024    10.89
2531.37    4.055    10.67
2541.37    4.085    10.45
2551.37    4.115    10.24
2561.37    4.144    10.03
2571.37    4.173     9.83
2581.37    4.201     9.63
2591.37    4.229     9.43
2601.37    4.256     9.23
2611.37    4.282     9.03
2621.37    4.308     8.84
2631.37    4.333     8.65
2641.37    4.358     8.46
2651.37    4.382     8.28
2661.37    4.406     8.09
2671.37    4.429     7.91
2681.37    4.452     7.73
2691.37    4.474     7.55
2701.37    4.495     7.38
2711.37    4.517     7.20
2721.37    4.537     7.03
2731.37    4.557     6.86
2741.37    4.577     6.69
2751.37    4.596     6.52
2761.37    4.615     6.35
2771.37    4.633     6.18
2781.37    4.651     6.02
2791.37    4.668     5.86
2801.37    4.685     5.69
2811.37    4.702     5.53
2821.37    4.717     5.37
2831.37    4.733     5.21
2841.37    4.748     5.05
2851.37    4.762     4.90
2861.37    4.777     4.74
2871.37    4.790     4.59
2881.37    4.803     4.43
2891.37    4.816     4.28
2901.37    4.829     4.13
2911.37    4.841     3.97
2921.37    4.852     3.82
2931.37    4.863     3.67
2941.37    4.874     3.52
2951.37    4.884     3.37
2961.37    4.894     3.22
2971.37    4.903     3.08
2981.37    4.912     2.93
2991.37    4.920     2.78
3001.37    4.929     2.63
3011.37    4.936     2.49
3021.37    4.943     2.34
3031.37    4.950     2.20
3041.37    4.957     2.05
3051.37    4.963     1.91
3061.37    4.968     1.76
3071.37    4.974     1.62
3081.37    4.978     1.48
3091.37    4.983     1.33
3101.37    4.987     1.19
3111.37    4.990     1.05
3121.37    4.993     0.91
3131.37    4.996     0.76
3141.37    4.998     0.62
3151.37    5.000     0.48
3161.37    5.002     0.34
3171.37    5.003     0.20
3181.37    5.004     0.05
3191.37    5.004   359.91
3201.37    5.004   359.77
3211.37    5.003   359.63
3221.37    5.003   359.49
3231.37    5.001   359.34
3241.37    5.000   359.20
3251.37    4.997   359.06
3261.37    4.995   358.92
3271.37    4.992   358.78






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 17:09:29



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