Double Star Calculator - Orbit

Orbital Elements for STF2382AB
WDS: STF2382AB WDS ID/Discoverer
P: 1725.000 Orbital period (years)
a: 4.17 Semi-major axis (arcseconds)
i: 118.6 Inclination (degrees)
Ω: 198.0 Longitude of ascending node (degrees)
T: 190.000 Epoch of periastron passage (year)
e: 0.243 Eccentricity
ω: 198.0 Longitude of periastron (degrees)
Start-Year: 1162.5 Year
End-Year: 2887.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2382AB
Position: 184420.34+394012.4 Epoch-2000 right ascension and declination
WDS-ID: 18443+3940 WDS designation
Discoverer Code: STF2382AB Discover designation and components
ADS number: 11635 Aitken Double Star catalog
HD number: 173582 HD catalog number
Hipparcos number: 91919 Hipparcos catalog number
V1: 5.15 Magnitude of the primary
V2: 6.10 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2003 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: WSI2004b Reference

Double Star Orbit for STF2382AB



WDS 6th Orbit including measures of STF2382AB

-- 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 STF2382AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.252   342.37
--------------------------
1162.50    4.524   181.03
1172.50    4.467   180.20
1182.50    4.407   179.34
1192.50    4.346   178.46
1202.50    4.283   177.56
1212.50    4.217   176.63
1222.50    4.150   175.66
1232.50    4.080   174.67
1242.50    4.009   173.64
1252.50    3.936   172.57
1262.50    3.862   171.46
1272.50    3.786   170.31
1282.50    3.709   169.11
1292.50    3.630   167.86
1302.50    3.551   166.55
1312.50    3.470   165.18
1322.50    3.389   163.75
1332.50    3.307   162.25
1342.50    3.224   160.66
1352.50    3.142   159.00
1362.50    3.059   157.25
1372.50    2.977   155.40
1382.50    2.896   153.44
1392.50    2.815   151.38
1402.50    2.736   149.19
1412.50    2.658   146.87
1422.50    2.582   144.42
1432.50    2.509   141.82
1442.50    2.439   139.06
1452.50    2.372   136.15
1462.50    2.309   133.07
1472.50    2.251   129.83
1482.50    2.198   126.42
1492.50    2.151   122.85
1502.50    2.109   119.14
1512.50    2.075   115.29
1522.50    2.048   111.32
1532.50    2.028   107.26
1542.50    2.016   103.13
1552.50    2.012    98.97
1562.50    2.016    94.81
1572.50    2.027    90.69
1582.50    2.046    86.62
1592.50    2.073    82.65
1602.50    2.106    78.79
1612.50    2.145    75.05
1622.50    2.189    71.46
1632.50    2.238    68.02
1642.50    2.291    64.73
1652.50    2.347    61.60
1662.50    2.406    58.62
1672.50    2.467    55.78
1682.50    2.528    53.07
1692.50    2.591    50.50
1702.50    2.653    48.05
1712.50    2.714    45.71
1722.50    2.773    43.47
1732.50    2.831    41.32
1742.50    2.886    39.26
1752.50    2.938    37.28
1762.50    2.987    35.36
1772.50    3.031    33.50
1782.50    3.071    31.69
1792.50    3.107    29.92
1802.50    3.136    28.19
1812.50    3.161    26.49
1822.50    3.179    24.82
1832.50    3.191    23.15
1842.50    3.197    21.50
1852.50    3.196    19.85
1862.50    3.189    18.20
1872.50    3.174    16.54
1882.50    3.153    14.85
1892.50    3.125    13.15
1902.50    3.091    11.40
1912.50    3.050     9.61
1922.50    3.002     7.77
1932.50    2.949     5.87
1942.50    2.890     3.89
1952.50    2.826     1.83
1962.50    2.757   359.67
1972.50    2.684   357.39
1982.50    2.608   354.99
1992.50    2.529   352.43
2002.50    2.448   349.71
2012.50    2.366   346.80
2022.50    2.284   343.68
2032.50    2.203   340.33
2042.50    2.125   336.73
2052.50    2.050   332.86
2062.50    1.979   328.71
2072.50    1.915   324.26
2082.50    1.859   319.53
2092.50    1.812   314.52
2102.50    1.775   309.28
2112.50    1.750   303.85
2122.50    1.737   298.30
2132.50    1.737   292.70
2142.50    1.750   287.15
2152.50    1.775   281.72
2162.50    1.813   276.48
2172.50    1.862   271.49
2182.50    1.920   266.77
2192.50    1.988   262.35
2202.50    2.063   258.24
2212.50    2.145   254.43
2222.50    2.232   250.91
2232.50    2.323   247.66
2242.50    2.418   244.66
2252.50    2.515   241.89
2262.50    2.615   239.33
2272.50    2.715   236.95
2282.50    2.816   234.75
2292.50    2.917   232.70
2302.50    3.018   230.78
2312.50    3.119   228.99
2322.50    3.218   227.32
2332.50    3.316   225.74
2342.50    3.413   224.25
2352.50    3.508   222.84
2362.50    3.601   221.51
2372.50    3.692   220.24
2382.50    3.781   219.03
2392.50    3.867   217.88
2402.50    3.952   216.78
2412.50    4.033   215.72
2422.50    4.112   214.70
2432.50    4.188   213.73
2442.50    4.262   212.78
2452.50    4.333   211.87
2462.50    4.401   210.99
2472.50    4.465   210.13
2482.50    4.527   209.29
2492.50    4.586   208.48
2502.50    4.642   207.69
2512.50    4.695   206.92
2522.50    4.745   206.16
2532.50    4.792   205.42
2542.50    4.836   204.69
2552.50    4.877   203.98
2562.50    4.914   203.28
2572.50    4.949   202.58
2582.50    4.980   201.90
2592.50    5.009   201.23
2602.50    5.034   200.56
2612.50    5.056   199.90
2622.50    5.075   199.24
2632.50    5.091   198.59
2642.50    5.104   197.94
2652.50    5.114   197.29
2662.50    5.121   196.65
2672.50    5.125   196.01
2682.50    5.126   195.37
2692.50    5.124   194.72
2702.50    5.119   194.08
2712.50    5.111   193.44
2722.50    5.100   192.79
2732.50    5.086   192.14
2742.50    5.069   191.49
2752.50    5.050   190.83
2762.50    5.028   190.17
2772.50    5.002   189.50
2782.50    4.975   188.82
2792.50    4.944   188.13
2802.50    4.911   187.44
2812.50    4.875   186.74
2822.50    4.836   186.02
2832.50    4.795   185.30
2842.50    4.751   184.56
2852.50    4.705   183.80
2862.50    4.656   183.03
2872.50    4.605   182.25
2882.50    4.551   181.44






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 17:54:50



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