Double Star Calculator - Orbit

Orbital Elements for STF742
WDS: STF742 WDS ID/Discoverer
P: 2959.000 Orbital period (years)
a: 5.571 Semi-major axis (arcseconds)
i: 56.1 Inclination (degrees)
Ω: 110.6 Longitude of ascending node (degrees)
T: 2115.500 Epoch of periastron passage (year)
e: 0.21 Eccentricity
ω: 173.2 Longitude of periastron (degrees)
Start-Year: 545.5 Year
End-Year: 3504.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF742
Position: 053626.38+215935.1 Epoch-2000 right ascension and declination
WDS-ID: 05364+2200 WDS designation
Discoverer Code: STF742 Discover designation and components
ADS number: 4200 Aitken Double Star catalog
HD number: 37013 HD catalog number
Hipparcos number: 26328 Hipparcos catalog number
V1: 7.09 Magnitude of the primary
V2: 7.47 Magnitude of the secondary
Equinox: Equinox
Date: 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: Hop1973b Reference

Double Star Orbit for STF742



WDS 6th Orbit including measures of STF742

-- 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 STF742
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    4.181   276.86
--------------------------
545.50    6.586   102.59
555.50    6.605   103.06
565.50    6.622   103.53
575.50    6.638   104.00
585.50    6.653   104.47
595.50    6.666   104.93
605.50    6.679   105.39
615.50    6.690   105.85
625.50    6.699   106.31
635.50    6.708   106.77
645.50    6.715   107.23
655.50    6.721   107.69
665.50    6.726   108.14
675.50    6.729   108.60
685.50    6.731   109.05
695.50    6.732   109.50
705.50    6.731   109.96
715.50    6.729   110.41
725.50    6.726   110.87
735.50    6.722   111.32
745.50    6.716   111.78
755.50    6.709   112.24
765.50    6.701   112.70
775.50    6.691   113.15
785.50    6.680   113.61
795.50    6.668   114.08
805.50    6.655   114.54
815.50    6.640   115.01
825.50    6.624   115.48
835.50    6.606   115.95
845.50    6.588   116.42
855.50    6.568   116.89
865.50    6.546   117.37
875.50    6.524   117.86
885.50    6.500   118.34
895.50    6.475   118.83
905.50    6.449   119.32
915.50    6.421   119.82
925.50    6.392   120.32
935.50    6.362   120.83
945.50    6.331   121.34
955.50    6.298   121.86
965.50    6.264   122.38
975.50    6.229   122.91
985.50    6.193   123.44
995.50    6.156   123.98
1005.50    6.117   124.53
1015.50    6.077   125.08
1025.50    6.037   125.64
1035.50    5.994   126.21
1045.50    5.951   126.79
1055.50    5.907   127.37
1065.50    5.862   127.97
1075.50    5.815   128.57
1085.50    5.767   129.19
1095.50    5.719   129.81
1105.50    5.669   130.45
1115.50    5.618   131.09
1125.50    5.567   131.75
1135.50    5.514   132.42
1145.50    5.460   133.11
1155.50    5.406   133.80
1165.50    5.350   134.51
1175.50    5.294   135.24
1185.50    5.237   135.98
1195.50    5.179   136.74
1205.50    5.120   137.52
1215.50    5.061   138.31
1225.50    5.001   139.13
1235.50    4.940   139.96
1245.50    4.878   140.82
1255.50    4.816   141.69
1265.50    4.754   142.59
1275.50    4.691   143.51
1285.50    4.628   144.46
1295.50    4.564   145.44
1305.50    4.500   146.44
1315.50    4.436   147.47
1325.50    4.371   148.53
1335.50    4.307   149.63
1345.50    4.242   150.76
1355.50    4.178   151.92
1365.50    4.113   153.12
1375.50    4.049   154.35
1385.50    3.985   155.63
1395.50    3.922   156.94
1405.50    3.859   158.30
1415.50    3.797   159.71
1425.50    3.736   161.16
1435.50    3.676   162.66
1445.50    3.616   164.21
1455.50    3.558   165.81
1465.50    3.501   167.46
1475.50    3.445   169.17
1485.50    3.392   170.93
1495.50    3.339   172.75
1505.50    3.289   174.63
1515.50    3.241   176.56
1525.50    3.195   178.55
1535.50    3.152   180.59
1545.50    3.111   182.69
1555.50    3.073   184.85
1565.50    3.037   187.05
1575.50    3.005   189.31
1585.50    2.976   191.61
1595.50    2.951   193.96
1605.50    2.928   196.34
1615.50    2.910   198.76
1625.50    2.895   201.20
1635.50    2.883   203.67
1645.50    2.876   206.15
1655.50    2.872   208.65
1665.50    2.872   211.14
1675.50    2.876   213.64
1685.50    2.883   216.12
1695.50    2.894   218.59
1705.50    2.909   221.03
1715.50    2.927   223.45
1725.50    2.948   225.84
1735.50    2.973   228.19
1745.50    3.000   230.50
1755.50    3.031   232.76
1765.50    3.063   234.98
1775.50    3.099   237.15
1785.50    3.136   239.27
1795.50    3.175   241.34
1805.50    3.217   243.35
1815.50    3.259   245.32
1825.50    3.303   247.23
1835.50    3.349   249.09
1845.50    3.395   250.90
1855.50    3.442   252.66
1865.50    3.489   254.38
1875.50    3.537   256.05
1885.50    3.585   257.67
1895.50    3.633   259.25
1905.50    3.680   260.79
1915.50    3.727   262.29
1925.50    3.774   263.76
1935.50    3.820   265.18
1945.50    3.865   266.58
1955.50    3.909   267.94
1965.50    3.952   269.27
1975.50    3.993   270.58
1985.50    4.034   271.86
1995.50    4.072   273.11
2005.50    4.109   274.34
2015.50    4.144   275.55
2025.50    4.177   276.74
2035.50    4.209   277.91
2045.50    4.238   279.06
2055.50    4.265   280.20
2065.50    4.290   281.33
2075.50    4.313   282.44
2085.50    4.333   283.54
2095.50    4.351   284.63
2105.50    4.367   285.72
2115.50    4.380   286.80
2125.50    4.390   287.87
2135.50    4.399   288.93
2145.50    4.404   289.99
2155.50    4.408   291.06
2165.50    4.408   292.11
2175.50    4.406   293.17
2185.50    4.402   294.24
2195.50    4.395   295.30
2205.50    4.386   296.37
2215.50    4.375   297.44
2225.50    4.361   298.52
2235.50    4.345   299.61
2245.50    4.326   300.70
2255.50    4.305   301.81
2265.50    4.283   302.92
2275.50    4.258   304.05
2285.50    4.231   305.20
2295.50    4.203   306.35
2305.50    4.172   307.53
2315.50    4.140   308.72
2325.50    4.107   309.93
2335.50    4.072   311.16
2345.50    4.035   312.42
2355.50    3.997   313.69
2365.50    3.959   314.99
2375.50    3.919   316.32
2385.50    3.878   317.68
2395.50    3.837   319.06
2405.50    3.795   320.47
2415.50    3.752   321.92
2425.50    3.709   323.40
2435.50    3.667   324.91
2445.50    3.624   326.46
2455.50    3.581   328.05
2465.50    3.539   329.67
2475.50    3.497   331.34
2485.50    3.456   333.04
2495.50    3.415   334.79
2505.50    3.376   336.57
2515.50    3.338   338.40
2525.50    3.301   340.27
2535.50    3.266   342.18
2545.50    3.232   344.13
2555.50    3.200   346.12
2565.50    3.171   348.15
2575.50    3.143   350.22
2585.50    3.118   352.32
2595.50    3.095   354.45
2605.50    3.075   356.62
2615.50    3.058   358.81
2625.50    3.043     1.02
2635.50    3.031     3.25
2645.50    3.023     5.50
2655.50    3.017     7.76
2665.50    3.015    10.02
2675.50    3.015    12.29
2685.50    3.019    14.55
2695.50    3.027    16.80
2705.50    3.037    19.04
2715.50    3.050    21.27
2725.50    3.067    23.47
2735.50    3.086    25.64
2745.50    3.109    27.79
2755.50    3.134    29.90
2765.50    3.163    31.98
2775.50    3.193    34.02
2785.50    3.227    36.02
2795.50    3.263    37.97
2805.50    3.301    39.89
2815.50    3.341    41.75
2825.50    3.384    43.58
2835.50    3.428    45.35
2845.50    3.474    47.08
2855.50    3.522    48.76
2865.50    3.572    50.40
2875.50    3.623    51.99
2885.50    3.675    53.54
2895.50    3.728    55.04
2905.50    3.783    56.50
2915.50    3.838    57.92
2925.50    3.894    59.30
2935.50    3.951    60.63
2945.50    4.009    61.93
2955.50    4.067    63.20
2965.50    4.126    64.42
2975.50    4.185    65.62
2985.50    4.245    66.78
2995.50    4.304    67.90
3005.50    4.364    69.00
3015.50    4.424    70.07
3025.50    4.484    71.10
3035.50    4.544    72.11
3045.50    4.604    73.10
3055.50    4.663    74.06
3065.50    4.722    74.99
3075.50    4.782    75.90
3085.50    4.840    76.79
3095.50    4.899    77.66
3105.50    4.957    78.51
3115.50    5.014    79.34
3125.50    5.071    80.15
3135.50    5.127    80.94
3145.50    5.183    81.72
3155.50    5.238    82.47
3165.50    5.293    83.22
3175.50    5.347    83.94
3185.50    5.400    84.66
3195.50    5.452    85.36
3205.50    5.504    86.04
3215.50    5.554    86.72
3225.50    5.604    87.38
3235.50    5.653    88.03
3245.50    5.701    88.67
3255.50    5.749    89.30
3265.50    5.795    89.91
3275.50    5.840    90.52
3285.50    5.885    91.12
3295.50    5.928    91.71
3305.50    5.971    92.29
3315.50    6.012    92.87
3325.50    6.053    93.43
3335.50    6.092    93.99
3345.50    6.130    94.54
3355.50    6.167    95.09
3365.50    6.204    95.62
3375.50    6.239    96.16
3385.50    6.272    96.68
3395.50    6.305    97.20
3405.50    6.337    97.72
3415.50    6.367    98.23
3425.50    6.397    98.73
3435.50    6.425    99.24
3445.50    6.452    99.73
3455.50    6.477   100.22
3465.50    6.502   100.71
3475.50    6.525   101.20
3485.50    6.547   101.68
3495.50    6.568   102.16






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 15:39:07



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