Double Star Calculator - Orbit

Orbital Elements for STF443AB
WDS: STF443AB WDS ID/Discoverer
P: 2275.519 Orbital period (years)
a: 22.78507 Semi-major axis (arcseconds)
i: 85.419 Inclination (degrees)
Ω: 37.681 Longitude of ascending node (degrees)
T: 1636.174 Epoch of periastron passage (year)
e: 0.82609 Eccentricity
ω: 282.781 Longitude of periastron (degrees)
Start-Year: 887.24035 Year
End-Year: 3162.75965 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF443AB
Position: 034702.11+412538.1 Epoch-2000 right ascension and declination
WDS-ID: 03470+4126 WDS designation
Discoverer Code: STF443AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.20 Magnitude of the primary
V2: 8.82 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 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 STF443AB



WDS 6th Orbit including measures of STF443AB

-- 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 STF443AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    6.707    56.85
--------------------------
887.24   15.678   207.40
897.24   15.794   207.55
907.24   15.907   207.70
917.24   16.018   207.84
927.24   16.126   207.99
937.24   16.231   208.13
947.24   16.334   208.27
957.24   16.434   208.41
967.24   16.531   208.54
977.24   16.625   208.68
987.24   16.716   208.81
997.24   16.804   208.94
1007.24   16.889   209.07
1017.24   16.970   209.20
1027.24   17.049   209.33
1037.24   17.124   209.45
1047.24   17.195   209.58
1057.24   17.263   209.70
1067.24   17.327   209.83
1077.24   17.387   209.95
1087.24   17.444   210.07
1097.24   17.496   210.19
1107.24   17.544   210.31
1117.24   17.588   210.43
1127.24   17.628   210.55
1137.24   17.663   210.67
1147.24   17.693   210.79
1157.24   17.718   210.91
1167.24   17.739   211.03
1177.24   17.754   211.14
1187.24   17.763   211.26
1197.24   17.768   211.38
1207.24   17.766   211.49
1217.24   17.758   211.61
1227.24   17.745   211.73
1237.24   17.724   211.85
1247.24   17.697   211.96
1257.24   17.663   212.08
1267.24   17.622   212.20
1277.24   17.573   212.32
1287.24   17.516   212.44
1297.24   17.451   212.56
1307.24   17.377   212.68
1317.24   17.293   212.81
1327.24   17.200   212.93
1337.24   17.097   213.06
1347.24   16.983   213.18
1357.24   16.858   213.31
1367.24   16.721   213.44
1377.24   16.571   213.58
1387.24   16.408   213.71
1397.24   16.230   213.85
1407.24   16.037   213.99
1417.24   15.827   214.14
1427.24   15.599   214.29
1437.24   15.352   214.44
1447.24   15.085   214.60
1457.24   14.794   214.77
1467.24   14.479   214.94
1477.24   14.137   215.12
1487.24   13.765   215.31
1497.24   13.360   215.51
1507.24   12.917   215.73
1517.24   12.432   215.96
1527.24   11.900   216.21
1537.24   11.312   216.48
1547.24   10.661   216.79
1557.24    9.935   217.14
1567.24    9.120   217.54
1577.24    8.196   218.04
1587.24    7.140   218.67
1597.24    5.918   219.54
1607.24    4.494   220.92
1617.24    2.834   223.79
1627.24    0.971   237.10
1637.24    1.130    22.04
1647.24    2.952    32.94
1657.24    4.467    35.70
1667.24    5.644    37.15
1677.24    6.544    38.15
1687.24    7.238    38.93
1697.24    7.776    39.58
1707.24    8.197    40.16
1717.24    8.526    40.69
1727.24    8.783    41.18
1737.24    8.981    41.65
1747.24    9.132    42.10
1757.24    9.242    42.54
1767.24    9.318    42.97
1777.24    9.365    43.39
1787.24    9.388    43.81
1797.24    9.389    44.23
1807.24    9.370    44.65
1817.24    9.335    45.07
1827.24    9.286    45.50
1837.24    9.223    45.93
1847.24    9.148    46.37
1857.24    9.063    46.81
1867.24    8.968    47.27
1877.24    8.864    47.73
1887.24    8.753    48.21
1897.24    8.635    48.70
1907.24    8.511    49.20
1917.24    8.380    49.72
1927.24    8.245    50.25
1937.24    8.105    50.81
1947.24    7.960    51.38
1957.24    7.812    51.97
1967.24    7.660    52.59
1977.24    7.505    53.24
1987.24    7.347    53.91
1997.24    7.187    54.61
2007.24    7.025    55.34
2017.24    6.861    56.11
2027.24    6.695    56.91
2037.24    6.528    57.76
2047.24    6.360    58.65
2057.24    6.191    59.58
2067.24    6.022    60.58
2077.24    5.853    61.63
2087.24    5.684    62.74
2097.24    5.515    63.92
2107.24    5.348    65.17
2117.24    5.181    66.50
2127.24    5.016    67.93
2137.24    4.853    69.45
2147.24    4.692    71.07
2157.24    4.534    72.81
2167.24    4.379    74.67
2177.24    4.228    76.67
2187.24    4.082    78.81
2197.24    3.940    81.11
2207.24    3.805    83.57
2217.24    3.677    86.22
2227.24    3.556    89.05
2237.24    3.443    92.07
2247.24    3.340    95.28
2257.24    3.248    98.69
2267.24    3.167   102.29
2277.24    3.098   106.06
2287.24    3.043   109.99
2297.24    3.002   114.04
2307.24    2.976   118.18
2317.24    2.965   122.37
2327.24    2.969   126.57
2337.24    2.989   130.74
2347.24    3.024   134.83
2357.24    3.074   138.81
2367.24    3.137   142.65
2377.24    3.213   146.32
2387.24    3.301   149.81
2397.24    3.401   153.10
2407.24    3.510   156.20
2417.24    3.628   159.10
2427.24    3.755   161.82
2437.24    3.889   164.35
2447.24    4.029   166.71
2457.24    4.175   168.91
2467.24    4.327   170.96
2477.24    4.482   172.86
2487.24    4.642   174.64
2497.24    4.805   176.30
2507.24    4.972   177.84
2517.24    5.141   179.29
2527.24    5.312   180.64
2537.24    5.486   181.91
2547.24    5.661   183.10
2557.24    5.837   184.22
2567.24    6.015   185.27
2577.24    6.195   186.27
2587.24    6.375   187.20
2597.24    6.555   188.09
2607.24    6.737   188.92
2617.24    6.919   189.72
2627.24    7.101   190.47
2637.24    7.284   191.19
2647.24    7.466   191.86
2657.24    7.649   192.51
2667.24    7.832   193.13
2677.24    8.014   193.72
2687.24    8.196   194.28
2697.24    8.379   194.82
2707.24    8.560   195.33
2717.24    8.741   195.83
2727.24    8.922   196.30
2737.24    9.103   196.76
2747.24    9.282   197.20
2757.24    9.461   197.62
2767.24    9.640   198.02
2777.24    9.817   198.41
2787.24    9.994   198.79
2797.24   10.170   199.15
2807.24   10.345   199.50
2817.24   10.519   199.84
2827.24   10.692   200.17
2837.24   10.865   200.49
2847.24   11.036   200.80
2857.24   11.206   201.10
2867.24   11.375   201.39
2877.24   11.542   201.67
2887.24   11.709   201.94
2897.24   11.874   202.21
2907.24   12.039   202.47
2917.24   12.201   202.72
2927.24   12.363   202.96
2937.24   12.523   203.20
2947.24   12.681   203.44
2957.24   12.838   203.66
2967.24   12.994   203.88
2977.24   13.148   204.10
2987.24   13.301   204.31
2997.24   13.452   204.52
3007.24   13.601   204.72
3017.24   13.749   204.92
3027.24   13.894   205.11
3037.24   14.039   205.30
3047.24   14.181   205.49
3057.24   14.321   205.67
3067.24   14.460   205.85
3077.24   14.596   206.02
3087.24   14.731   206.20
3097.24   14.863   206.36
3107.24   14.994   206.53
3117.24   15.122   206.69
3127.24   15.248   206.85
3137.24   15.372   207.01
3147.24   15.494   207.17
3157.24   15.613   207.32






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 15:14:33



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