Double Star Calculator - Orbit

Orbital Elements for STF958AB
WDS: STF958AB WDS ID/Discoverer
P: 2023.776 Orbital period (years)
a: 7.38663 Semi-major axis (arcseconds)
i: 95.824 Inclination (degrees)
Ω: 70.143 Longitude of ascending node (degrees)
T: 2202.665 Epoch of periastron passage (year)
e: 0.87194 Eccentricity
ω: 99.851 Longitude of periastron (degrees)
Start-Year: 1013.11195 Year
End-Year: 3036.88805 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF958AB
Position: 064812.29+554215.1 Epoch-2000 right ascension and declination
WDS-ID: 06482+5542 WDS designation
Discoverer Code: STF958AB Discover designation and components
ADS number: 5436 Aitken Double Star catalog
HD number: 48767 HD catalog number
Hipparcos number: 32609 Hipparcos catalog number
V1: 6.28 Magnitude of the primary
V2: 6.34 Magnitude of the secondary
Equinox: Equinox
Date: 2015 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 STF958AB



WDS 6th Orbit including measures of STF958AB

-- 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 STF958AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    4.436    76.12
--------------------------
1013.11    1.866   117.31
1023.11    1.912   115.96
1033.11    1.958   114.67
1043.11    2.006   113.44
1053.11    2.053   112.27
1063.11    2.102   111.15
1073.11    2.150   110.09
1083.11    2.199   109.07
1093.11    2.249   108.09
1103.11    2.298   107.16
1113.11    2.348   106.27
1123.11    2.398   105.41
1133.11    2.449   104.59
1143.11    2.499   103.80
1153.11    2.550   103.04
1163.11    2.600   102.32
1173.11    2.651   101.62
1183.11    2.701   100.94
1193.11    2.752   100.29
1203.11    2.802    99.67
1213.11    2.853    99.07
1223.11    2.903    98.48
1233.11    2.953    97.92
1243.11    3.003    97.38
1253.11    3.053    96.85
1263.11    3.102    96.34
1273.11    3.152    95.85
1283.11    3.201    95.37
1293.11    3.249    94.91
1303.11    3.298    94.46
1313.11    3.346    94.02
1323.11    3.394    93.60
1333.11    3.442    93.18
1343.11    3.489    92.78
1353.11    3.536    92.39
1363.11    3.582    92.01
1373.11    3.629    91.64
1383.11    3.674    91.28
1393.11    3.719    90.92
1403.11    3.764    90.58
1413.11    3.808    90.24
1423.11    3.852    89.91
1433.11    3.896    89.59
1443.11    3.938    89.28
1453.11    3.981    88.97
1463.11    4.022    88.67
1473.11    4.063    88.38
1483.11    4.104    88.09
1493.11    4.144    87.80
1503.11    4.183    87.52
1513.11    4.222    87.25
1523.11    4.260    86.98
1533.11    4.297    86.72
1543.11    4.333    86.46
1553.11    4.369    86.21
1563.11    4.404    85.96
1573.11    4.439    85.71
1583.11    4.472    85.47
1593.11    4.505    85.23
1603.11    4.536    84.99
1613.11    4.567    84.76
1623.11    4.597    84.53
1633.11    4.626    84.30
1643.11    4.655    84.08
1653.11    4.682    83.86
1663.11    4.708    83.64
1673.11    4.733    83.42
1683.11    4.757    83.21
1693.11    4.779    82.99
1703.11    4.801    82.78
1713.11    4.822    82.58
1723.11    4.841    82.37
1733.11    4.859    82.16
1743.11    4.875    81.96
1753.11    4.890    81.76
1763.11    4.904    81.56
1773.11    4.916    81.36
1783.11    4.927    81.16
1793.11    4.936    80.96
1803.11    4.943    80.76
1813.11    4.949    80.57
1823.11    4.953    80.37
1833.11    4.955    80.17
1843.11    4.955    79.98
1853.11    4.953    79.78
1863.11    4.948    79.58
1873.11    4.942    79.39
1883.11    4.933    79.19
1893.11    4.921    78.99
1903.11    4.907    78.79
1913.11    4.890    78.59
1923.11    4.870    78.39
1933.11    4.847    78.18
1943.11    4.821    77.98
1953.11    4.791    77.77
1963.11    4.757    77.56
1973.11    4.719    77.34
1983.11    4.677    77.12
1993.11    4.631    76.90
2003.11    4.579    76.67
2013.11    4.522    76.44
2023.11    4.459    76.20
2033.11    4.389    75.95
2043.11    4.312    75.70
2053.11    4.228    75.43
2063.11    4.134    75.16
2073.11    4.031    74.87
2083.11    3.917    74.56
2093.11    3.790    74.24
2103.11    3.648    73.89
2113.11    3.488    73.51
2123.11    3.308    73.10
2133.11    3.103    72.63
2143.11    2.866    72.09
2153.11    2.589    71.44
2163.11    2.258    70.62
2173.11    1.851    69.47
2183.11    1.332    67.54
2193.11    0.651    62.15
2203.11    0.221   275.24
2213.11    0.968   253.63
2223.11    1.492   250.39
2233.11    1.841   248.66
2243.11    2.085   247.41
2253.11    2.261   246.39
2263.11    2.392   245.50
2273.11    2.491   244.70
2283.11    2.565   243.94
2293.11    2.620   243.23
2303.11    2.661   242.54
2313.11    2.689   241.86
2323.11    2.707   241.20
2333.11    2.717   240.54
2343.11    2.719   239.89
2353.11    2.716   239.24
2363.11    2.707   238.58
2373.11    2.694   237.92
2383.11    2.676   237.25
2393.11    2.655   236.58
2403.11    2.631   235.89
2413.11    2.604   235.18
2423.11    2.575   234.46
2433.11    2.544   233.73
2443.11    2.510   232.97
2453.11    2.475   232.20
2463.11    2.439   231.40
2473.11    2.401   230.57
2483.11    2.362   229.72
2493.11    2.322   228.84
2503.11    2.281   227.93
2513.11    2.239   226.99
2523.11    2.197   226.01
2533.11    2.154   224.99
2543.11    2.111   223.93
2553.11    2.068   222.83
2563.11    2.024   221.67
2573.11    1.981   220.47
2583.11    1.938   219.22
2593.11    1.895   217.90
2603.11    1.852   216.53
2613.11    1.809   215.09
2623.11    1.768   213.58
2633.11    1.726   212.00
2643.11    1.686   210.34
2653.11    1.647   208.61
2663.11    1.609   206.79
2673.11    1.571   204.88
2683.11    1.536   202.88
2693.11    1.502   200.79
2703.11    1.469   198.60
2713.11    1.439   196.32
2723.11    1.410   193.94
2733.11    1.384   191.47
2743.11    1.359   188.91
2753.11    1.338   186.25
2763.11    1.319   183.52
2773.11    1.303   180.71
2783.11    1.289   177.84
2793.11    1.279   174.92
2803.11    1.272   171.95
2813.11    1.268   168.96
2823.11    1.267   165.96
2833.11    1.270   162.96
2843.11    1.275   159.98
2853.11    1.284   157.04
2863.11    1.296   154.14
2873.11    1.311   151.30
2883.11    1.329   148.53
2893.11    1.350   145.84
2903.11    1.373   143.24
2913.11    1.399   140.73
2923.11    1.427   138.31
2933.11    1.457   135.99
2943.11    1.489   133.77
2953.11    1.523   131.64
2963.11    1.559   129.61
2973.11    1.597   127.67
2983.11    1.636   125.83
2993.11    1.676   124.07
3003.11    1.718   122.39
3013.11    1.761   120.80
3023.11    1.804   119.28
3033.11    1.849   117.84






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 15:51:14



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