Double Star Calculator - Orbit

Orbital Elements for STF2215
WDS: STF2215 WDS ID/Discoverer
P: 1062.470 Orbital period (years)
a: 0.838 Semi-major axis (arcseconds)
i: 132.2 Inclination (degrees)
Ω: 105.5 Longitude of ascending node (degrees)
T: 2066.490 Epoch of periastron passage (year)
e: 0.397 Eccentricity
ω: 270.6 Longitude of periastron (degrees)
Start-Year: 1493.7649999999999 Year
End-Year: 2556.235 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2215
Position: 174708.05+174149.2 Epoch-2000 right ascension and declination
WDS-ID: 17471+1742 WDS designation
Discoverer Code: STF2215 Discover designation and components
ADS number: 10795 Aitken Double Star catalog
HD number: 161833 HD catalog number
Hipparcos number: 87044 Hipparcos catalog number
V1: 6.02 Magnitude of the primary
V2: 6.89 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2002 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: Cve2006e Reference

Double Star Orbit for STF2215



WDS 6th Orbit including measures of STF2215

-- 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 STF2215
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.414   239.01
--------------------------
1493.76    0.788    24.44
1503.76    0.787    22.07
1513.76    0.787    19.70
1523.76    0.786    17.33
1533.76    0.786    14.96
1543.76    0.787    12.59
1553.76    0.788    10.22
1563.76    0.789     7.86
1573.76    0.790     5.50
1583.76    0.792     3.16
1593.76    0.794     0.82
1603.76    0.796   358.50
1613.76    0.798   356.19
1623.76    0.801   353.90
1633.76    0.804   351.62
1643.76    0.807   349.36
1653.76    0.810   347.11
1663.76    0.813   344.89
1673.76    0.817   342.68
1683.76    0.820   340.49
1693.76    0.823   338.31
1703.76    0.826   336.15
1713.76    0.829   334.01
1723.76    0.832   331.88
1733.76    0.834   329.77
1743.76    0.836   327.66
1753.76    0.838   325.57
1763.76    0.839   323.48
1773.76    0.839   321.40
1783.76    0.839   319.32
1793.76    0.839   317.23
1803.76    0.837   315.14
1813.76    0.835   313.05
1823.76    0.832   310.93
1833.76    0.827   308.80
1843.76    0.822   306.64
1853.76    0.815   304.45
1863.76    0.807   302.22
1873.76    0.797   299.94
1883.76    0.786   297.60
1893.76    0.773   295.18
1903.76    0.758   292.68
1913.76    0.741   290.07
1923.76    0.722   287.33
1933.76    0.701   284.43
1943.76    0.678   281.34
1953.76    0.652   278.02
1963.76    0.624   274.42
1973.76    0.593   270.46
1983.76    0.561   266.06
1993.76    0.527   261.10
2003.76    0.492   255.44
2013.76    0.457   248.91
2023.76    0.423   241.31
2033.76    0.392   232.43
2043.76    0.366   222.15
2053.76    0.348   210.56
2063.76    0.340   198.07
2073.76    0.343   185.41
2083.76    0.357   173.36
2093.76    0.380   162.49
2103.76    0.409   153.01
2113.76    0.442   144.87
2123.76    0.476   137.90
2133.76    0.512   131.88
2143.76    0.546   126.63
2153.76    0.579   121.99
2163.76    0.610   117.84
2173.76    0.638   114.07
2183.76    0.665   110.62
2193.76    0.689   107.42
2203.76    0.711   104.42
2213.76    0.730   101.60
2223.76    0.748    98.91
2233.76    0.763    96.34
2243.76    0.776    93.86
2253.76    0.788    91.47
2263.76    0.798    89.14
2273.76    0.806    86.86
2283.76    0.814    84.62
2293.76    0.819    82.42
2303.76    0.824    80.25
2313.76    0.827    78.10
2323.76    0.830    75.96
2333.76    0.832    73.84
2343.76    0.833    71.72
2353.76    0.833    69.60
2363.76    0.832    67.49
2373.76    0.831    65.37
2383.76    0.830    63.24
2393.76    0.828    61.11
2403.76    0.826    58.96
2413.76    0.823    56.80
2423.76    0.821    54.63
2433.76    0.818    52.45
2443.76    0.815    50.24
2453.76    0.812    48.03
2463.76    0.809    45.79
2473.76    0.806    43.54
2483.76    0.803    41.28
2493.76    0.800    39.00
2503.76    0.798    36.70
2513.76    0.795    34.39
2523.76    0.793    32.06
2533.76    0.791    29.72
2543.76    0.790    27.38
2553.76    0.788    25.02






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 17:43:05



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