Double Star Calculator - Orbit

Orbital Elements for STT325
WDS: STT325 WDS ID/Discoverer
P: 2838.000 Orbital period (years)
a: 3.34 Semi-major axis (arcseconds)
i: 77.9 Inclination (degrees)
Ω: 6.2 Longitude of ascending node (degrees)
T: 2130.000 Epoch of periastron passage (year)
e: 0.662 Eccentricity
ω: 348.8 Longitude of periastron (degrees)
Start-Year: 606.0 Year
End-Year: 3444.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT325
Position: 171259.30+074457.5 Epoch-2000 right ascension and declination
WDS-ID: 17130+0745 WDS designation
Discoverer Code: STT325 Discover designation and components
ADS number: 10398 Aitken Double Star catalog
HD number: 155714 HD catalog number
Hipparcos number: 84230 Hipparcos catalog number
V1: 7.15 Magnitude of the primary
V2: 8.94 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: FMR2012h Reference

Double Star Orbit for STT325



WDS 6th Orbit including measures of STT325

-- 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 STT325
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.400   314.18
--------------------------
606.00    5.354   183.02
616.00    5.366   183.10
626.00    5.377   183.18
636.00    5.388   183.26
646.00    5.398   183.33
656.00    5.407   183.41
666.00    5.416   183.48
676.00    5.425   183.56
686.00    5.433   183.64
696.00    5.440   183.71
706.00    5.447   183.79
716.00    5.453   183.86
726.00    5.459   183.94
736.00    5.464   184.01
746.00    5.468   184.08
756.00    5.472   184.16
766.00    5.475   184.23
776.00    5.478   184.31
786.00    5.480   184.38
796.00    5.482   184.45
806.00    5.483   184.53
816.00    5.483   184.60
826.00    5.483   184.68
836.00    5.482   184.75
846.00    5.481   184.82
856.00    5.479   184.90
866.00    5.477   184.97
876.00    5.473   185.05
886.00    5.470   185.12
896.00    5.465   185.20
906.00    5.461   185.27
916.00    5.455   185.34
926.00    5.449   185.42
936.00    5.442   185.49
946.00    5.435   185.57
956.00    5.427   185.65
966.00    5.419   185.72
976.00    5.410   185.80
986.00    5.400   185.87
996.00    5.389   185.95
1006.00    5.378   186.03
1016.00    5.367   186.10
1026.00    5.355   186.18
1036.00    5.342   186.26
1046.00    5.328   186.34
1056.00    5.314   186.41
1066.00    5.300   186.49
1076.00    5.284   186.57
1086.00    5.268   186.65
1096.00    5.251   186.73
1106.00    5.234   186.81
1116.00    5.216   186.90
1126.00    5.198   186.98
1136.00    5.178   187.06
1146.00    5.158   187.14
1156.00    5.138   187.23
1166.00    5.116   187.31
1176.00    5.094   187.40
1186.00    5.072   187.48
1196.00    5.048   187.57
1206.00    5.024   187.66
1216.00    5.000   187.75
1226.00    4.974   187.84
1236.00    4.948   187.93
1246.00    4.921   188.02
1256.00    4.894   188.11
1266.00    4.865   188.20
1276.00    4.836   188.30
1286.00    4.807   188.39
1296.00    4.776   188.49
1306.00    4.745   188.59
1316.00    4.713   188.69
1326.00    4.680   188.79
1336.00    4.647   188.89
1346.00    4.612   188.99
1356.00    4.577   189.10
1366.00    4.541   189.21
1376.00    4.505   189.31
1386.00    4.467   189.43
1396.00    4.429   189.54
1406.00    4.390   189.65
1416.00    4.350   189.77
1426.00    4.309   189.89
1436.00    4.267   190.01
1446.00    4.225   190.13
1456.00    4.182   190.26
1466.00    4.137   190.39
1476.00    4.092   190.52
1486.00    4.046   190.65
1496.00    4.000   190.79
1506.00    3.952   190.93
1516.00    3.903   191.07
1526.00    3.853   191.22
1536.00    3.803   191.37
1546.00    3.751   191.53
1556.00    3.699   191.69
1566.00    3.645   191.85
1576.00    3.591   192.02
1586.00    3.535   192.20
1596.00    3.478   192.38
1606.00    3.421   192.57
1616.00    3.362   192.76
1626.00    3.302   192.96
1636.00    3.242   193.17
1646.00    3.180   193.38
1656.00    3.117   193.61
1666.00    3.052   193.84
1676.00    2.987   194.09
1686.00    2.921   194.34
1696.00    2.853   194.61
1706.00    2.784   194.89
1716.00    2.714   195.18
1726.00    2.643   195.49
1736.00    2.570   195.82
1746.00    2.496   196.16
1756.00    2.421   196.53
1766.00    2.345   196.92
1776.00    2.267   197.34
1786.00    2.188   197.79
1796.00    2.107   198.27
1806.00    2.025   198.79
1816.00    1.942   199.36
1826.00    1.858   199.98
1836.00    1.772   200.65
1846.00    1.685   201.39
1856.00    1.596   202.22
1866.00    1.507   203.15
1876.00    1.416   204.19
1886.00    1.324   205.37
1896.00    1.230   206.74
1906.00    1.136   208.33
1916.00    1.041   210.21
1926.00    0.946   212.46
1936.00    0.851   215.22
1946.00    0.757   218.67
1956.00    0.665   223.09
1966.00    0.576   228.91
1976.00    0.494   236.74
1986.00    0.423   247.43
1996.00    0.371   261.74
2006.00    0.347   279.29
2016.00    0.356   297.58
2026.00    0.397   313.48
2036.00    0.460   325.74
2046.00    0.536   334.79
2056.00    0.618   341.51
2066.00    0.702   346.64
2076.00    0.785   350.67
2086.00    0.864   353.94
2096.00    0.936   356.69
2106.00    1.000   359.06
2116.00    1.053     1.17
2126.00    1.095     3.09
2136.00    1.124     4.89
2146.00    1.140     6.62
2156.00    1.143     8.33
2166.00    1.134    10.04
2176.00    1.113    11.80
2186.00    1.083    13.64
2196.00    1.044    15.60
2206.00    0.997    17.73
2216.00    0.945    20.09
2226.00    0.889    22.73
2236.00    0.830    25.74
2246.00    0.770    29.22
2256.00    0.709    33.30
2266.00    0.650    38.13
2276.00    0.593    43.91
2286.00    0.543    50.82
2296.00    0.500    59.04
2306.00    0.468    68.58
2316.00    0.449    79.21
2326.00    0.446    90.36
2336.00    0.459   101.26
2346.00    0.487   111.25
2356.00    0.527   119.95
2366.00    0.576   127.30
2376.00    0.633   133.41
2386.00    0.694   138.48
2396.00    0.760   142.69
2406.00    0.828   146.23
2416.00    0.897   149.23
2426.00    0.969   151.78
2436.00    1.040   153.99
2446.00    1.113   155.91
2456.00    1.185   157.60
2466.00    1.258   159.09
2476.00    1.330   160.42
2486.00    1.402   161.61
2496.00    1.474   162.68
2506.00    1.546   163.66
2516.00    1.617   164.55
2526.00    1.687   165.36
2536.00    1.757   166.11
2546.00    1.826   166.81
2556.00    1.895   167.45
2566.00    1.963   168.05
2576.00    2.030   168.60
2586.00    2.097   169.13
2596.00    2.163   169.62
2606.00    2.228   170.08
2616.00    2.292   170.51
2626.00    2.356   170.93
2636.00    2.419   171.32
2646.00    2.482   171.69
2656.00    2.544   172.04
2666.00    2.605   172.37
2676.00    2.665   172.69
2686.00    2.724   173.00
2696.00    2.783   173.29
2706.00    2.841   173.57
2716.00    2.899   173.84
2726.00    2.955   174.10
2736.00    3.011   174.35
2746.00    3.067   174.59
2756.00    3.121   174.83
2766.00    3.175   175.05
2776.00    3.228   175.27
2786.00    3.281   175.48
2796.00    3.333   175.68
2806.00    3.384   175.88
2816.00    3.434   176.07
2826.00    3.484   176.26
2836.00    3.533   176.44
2846.00    3.582   176.61
2856.00    3.629   176.78
2866.00    3.676   176.95
2876.00    3.723   177.11
2886.00    3.769   177.27
2896.00    3.814   177.42
2906.00    3.858   177.58
2916.00    3.902   177.72
2926.00    3.945   177.87
2936.00    3.988   178.01
2946.00    4.030   178.15
2956.00    4.071   178.28
2966.00    4.111   178.42
2976.00    4.151   178.55
2986.00    4.191   178.67
2996.00    4.229   178.80
3006.00    4.268   178.92
3016.00    4.305   179.04
3026.00    4.342   179.16
3036.00    4.378   179.28
3046.00    4.414   179.39
3056.00    4.449   179.51
3066.00    4.483   179.62
3076.00    4.517   179.73
3086.00    4.550   179.84
3096.00    4.583   179.94
3106.00    4.615   180.05
3116.00    4.646   180.15
3126.00    4.677   180.26
3136.00    4.707   180.36
3146.00    4.737   180.46
3156.00    4.766   180.55
3166.00    4.794   180.65
3176.00    4.822   180.75
3186.00    4.850   180.84
3196.00    4.876   180.94
3206.00    4.902   181.03
3216.00    4.928   181.12
3226.00    4.953   181.21
3236.00    4.977   181.30
3246.00    5.001   181.39
3256.00    5.024   181.48
3266.00    5.047   181.57
3276.00    5.069   181.66
3286.00    5.090   181.74
3296.00    5.111   181.83
3306.00    5.131   181.91
3316.00    5.151   182.00
3326.00    5.170   182.08
3336.00    5.189   182.16
3346.00    5.207   182.24
3356.00    5.224   182.33
3366.00    5.241   182.41
3376.00    5.258   182.49
3386.00    5.273   182.57
3396.00    5.289   182.65
3406.00    5.303   182.73
3416.00    5.317   182.81
3426.00    5.331   182.88
3436.00    5.344   182.96






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 17:35:00



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