Double Star Calculator - Orbit

Orbital Elements for STF1157
WDS: STF1157 WDS ID/Discoverer
P: 1448.000 Orbital period (years)
a: 1.827 Semi-major axis (arcseconds)
i: 130.2 Inclination (degrees)
Ω: 64.7 Longitude of ascending node (degrees)
T: 2002.980 Epoch of periastron passage (year)
e: 0.443 Eccentricity
ω: 246.6 Longitude of periastron (degrees)
Start-Year: 1301.0 Year
End-Year: 2749.0 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for STF1157
Position: 075433.03-024744.9 Epoch-2000 right ascension and declination
WDS-ID: 07546-0248 WDS designation
Discoverer Code: STF1157 Discover designation and components
ADS number: 6454 Aitken Double Star catalog
HD number: 64607 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 7.93 Magnitude of the primary
V2: 7.89 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: Flags
Ephemerides: Ephemerides
Code: Lin2010c Reference

Double Star Orbit for STF1157



WDS 6th Orbit including measures of STF1157

-- 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 STF1157
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.672   164.94
--------------------------
1301.00    1.848     5.50
1311.00    1.833     4.08
1321.00    1.818     2.64
1331.00    1.803     1.17
1341.00    1.788   359.68
1351.00    1.773   358.17
1361.00    1.759   356.63
1371.00    1.744   355.06
1381.00    1.730   353.47
1391.00    1.716   351.85
1401.00    1.702   350.21
1411.00    1.689   348.54
1421.00    1.676   346.84
1431.00    1.663   345.12
1441.00    1.650   343.37
1451.00    1.638   341.59
1461.00    1.627   339.79
1471.00    1.616   337.96
1481.00    1.605   336.11
1491.00    1.595   334.23
1501.00    1.585   332.33
1511.00    1.576   330.41
1521.00    1.567   328.47
1531.00    1.559   326.50
1541.00    1.552   324.52
1551.00    1.545   322.51
1561.00    1.539   320.49
1571.00    1.533   318.46
1581.00    1.528   316.41
1591.00    1.523   314.34
1601.00    1.519   312.27
1611.00    1.515   310.18
1621.00    1.512   308.08
1631.00    1.509   305.98
1641.00    1.506   303.86
1651.00    1.504   301.74
1661.00    1.502   299.62
1671.00    1.500   297.49
1681.00    1.498   295.35
1691.00    1.497   293.21
1701.00    1.495   291.06
1711.00    1.493   288.91
1721.00    1.491   286.76
1731.00    1.489   284.59
1741.00    1.486   282.42
1751.00    1.482   280.24
1761.00    1.478   278.05
1771.00    1.473   275.84
1781.00    1.466   273.62
1791.00    1.459   271.37
1801.00    1.449   269.10
1811.00    1.439   266.80
1821.00    1.426   264.46
1831.00    1.411   262.07
1841.00    1.394   259.63
1851.00    1.375   257.13
1861.00    1.352   254.55
1871.00    1.327   251.87
1881.00    1.298   249.09
1891.00    1.266   246.16
1901.00    1.230   243.08
1911.00    1.190   239.80
1921.00    1.146   236.28
1931.00    1.099   232.47
1941.00    1.048   228.30
1951.00    0.995   223.70
1961.00    0.939   218.56
1971.00    0.883   212.77
1981.00    0.829   206.21
1991.00    0.778   198.76
2001.00    0.733   190.33
2011.00    0.699   180.93
2021.00    0.677   170.75
2031.00    0.671   160.14
2041.00    0.681   149.58
2051.00    0.706   139.55
2061.00    0.745   130.39
2071.00    0.794   122.25
2081.00    0.850   115.12
2091.00    0.912   108.93
2101.00    0.977   103.54
2111.00    1.043    98.82
2121.00    1.109    94.67
2131.00    1.175    90.99
2141.00    1.239    87.69
2151.00    1.301    84.70
2161.00    1.361    81.99
2171.00    1.418    79.50
2181.00    1.473    77.21
2191.00    1.525    75.07
2201.00    1.575    73.07
2211.00    1.622    71.19
2221.00    1.667    69.41
2231.00    1.708    67.73
2241.00    1.748    66.12
2251.00    1.785    64.58
2261.00    1.819    63.10
2271.00    1.852    61.68
2281.00    1.882    60.30
2291.00    1.910    58.96
2301.00    1.936    57.66
2311.00    1.959    56.40
2321.00    1.981    55.16
2331.00    2.001    53.95
2341.00    2.020    52.76
2351.00    2.036    51.60
2361.00    2.051    50.45
2371.00    2.064    49.31
2381.00    2.076    48.19
2391.00    2.086    47.08
2401.00    2.095    45.98
2411.00    2.103    44.89
2421.00    2.109    43.81
2431.00    2.113    42.73
2441.00    2.117    41.66
2451.00    2.120    40.59
2461.00    2.121    39.52
2471.00    2.121    38.45
2481.00    2.120    37.39
2491.00    2.119    36.32
2501.00    2.116    35.25
2511.00    2.112    34.17
2521.00    2.108    33.09
2531.00    2.102    32.01
2541.00    2.096    30.92
2551.00    2.089    29.82
2561.00    2.081    28.72
2571.00    2.073    27.61
2581.00    2.064    26.48
2591.00    2.055    25.35
2601.00    2.044    24.21
2611.00    2.034    23.05
2621.00    2.022    21.89
2631.00    2.011    20.70
2641.00    1.998    19.51
2651.00    1.986    18.30
2661.00    1.973    17.07
2671.00    1.960    15.83
2681.00    1.946    14.57
2691.00    1.932    13.29
2701.00    1.918    12.00
2711.00    1.903    10.68
2721.00    1.889     9.35
2731.00    1.874     7.99
2741.00    1.860     6.61



 

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 16:02:49


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