Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:38:03

Orbital Elements for STF1187AB
WDS: STF1187AB WDS ID/Discoverer
P: 1385.156 Orbital period (years)
a: 3.0464 Semi-major axis (arcseconds)
i: 127.8 Inclination (degrees)
Ω: 17.6 Longitude of ascending node (degrees)
T: 3132.316 Epoch of periastron passage (year)
e: 0.2414 Eccentricity
ω: 258.1 Longitude of periastron (degrees)
Start-Year: 1333.0 Year
End-Year: 2717.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1187AB
Position: 080930.45+321318.8 Epoch-2000 right ascension and declination
WDS-ID: 08095+3213 WDS designation
Discoverer Code: STF1187AB Discover designation and components
ADS number: 6623 Aitken Double Star catalog
HD number: 67501 HD catalog number
Hipparcos number: 39948 Hipparcos catalog number
V1: 7.19 Magnitude of the primary
V2: 7.98 Magnitude of the secondary
Equinox: Equinox
Date: 1997 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1187AB



WDS 6th Orbit including measures of STF1187AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of STF1187AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     2.994     18.7
-------------------------
1333.0     2.645    236.7
1343.0     2.671    234.7
1353.0     2.696    232.7
1363.0     2.721    230.8
1373.0     2.744    228.8
1383.0     2.765    227.0
1393.0     2.785    225.1
1403.0     2.804    223.3
1413.0     2.820    221.4
1423.0     2.834    219.6
1433.0     2.845    217.9
1443.0     2.854    216.1
1453.0     2.859    214.3
1463.0     2.862    212.6
1473.0     2.861    210.8
1483.0     2.856    209.1
1493.0     2.848    207.3
1503.0     2.835    205.5
1513.0     2.819    203.7
1523.0     2.798    201.9
1533.0     2.773    200.1
1543.0     2.743    198.2
1553.0     2.709    196.3
1563.0     2.669    194.3
1573.0     2.625    192.2
1583.0     2.576    190.1
1593.0     2.523    187.9
1603.0     2.464    185.6
1613.0     2.402    183.2
1623.0     2.335    180.6
1633.0     2.264    177.9
1643.0     2.190    175.0
1653.0     2.114    171.9
1663.0     2.035    168.6
1673.0     1.955    165.0
1683.0     1.875    161.1
1693.0     1.796    156.8
1703.0     1.721    152.2
1713.0     1.649    147.1
1723.0     1.584    141.6
1733.0     1.528    135.7
1743.0     1.481    129.3
1753.0     1.447    122.6
1763.0     1.427    115.7
1773.0     1.422    108.6
1783.0     1.432    101.5
1793.0     1.456     94.6
1803.0     1.494     88.0
1813.0     1.545     81.8
1823.0     1.605     76.0
1833.0     1.674     70.7
1843.0     1.749     65.8
1853.0     1.828     61.3
1863.0     1.911     57.2
1873.0     1.995     53.4
1883.0     2.080     50.0
1893.0     2.165     46.8
1903.0     2.248     43.8
1913.0     2.329     41.1
1923.0     2.407     38.5
1933.0     2.482     36.1
1943.0     2.554     33.9
1953.0     2.622     31.7
1963.0     2.687     29.7
1973.0     2.747     27.7
1983.0     2.804     25.9
1993.0     2.856     24.1
2003.0     2.904     22.4
2013.0     2.947     20.7
2023.0     2.987     19.0
2033.0     3.022     17.5
2043.0     3.053     15.9
2053.0     3.081     14.4
2063.0     3.104     12.9
2073.0     3.123     11.4
2083.0     3.139      9.9
2093.0     3.151      8.5
2103.0     3.160      7.0
2113.0     3.165      5.6
2123.0     3.167      4.2
2133.0     3.166      2.7
2143.0     3.161      1.3
2153.0     3.154    359.9
2163.0     3.145    358.4
2173.0     3.132    357.0
2183.0     3.117    355.5
2193.0     3.100    354.0
2203.0     3.081    352.5
2213.0     3.060    351.0
2223.0     3.037    349.5
2233.0     3.012    347.9
2243.0     2.986    346.3
2253.0     2.958    344.7
2263.0     2.929    343.0
2273.0     2.899    341.3
2283.0     2.868    339.6
2293.0     2.837    337.8
2303.0     2.804    336.0
2313.0     2.772    334.2
2323.0     2.739    332.3
2333.0     2.706    330.4
2343.0     2.673    328.4
2353.0     2.641    326.3
2363.0     2.609    324.3
2373.0     2.577    322.1
2383.0     2.547    319.9
2393.0     2.517    317.7
2403.0     2.489    315.4
2413.0     2.462    313.1
2423.0     2.437    310.7
2433.0     2.413    308.2
2443.0     2.392    305.8
2453.0     2.372    303.2
2463.0     2.354    300.7
2473.0     2.339    298.1
2483.0     2.326    295.4
2493.0     2.315    292.7
2503.0     2.307    290.1
2513.0     2.302    287.4
2523.0     2.299    284.7
2533.0     2.299    281.9
2543.0     2.301    279.2
2553.0     2.306    276.5
2563.0     2.314    273.8
2573.0     2.324    271.2
2583.0     2.336    268.5
2593.0     2.350    265.9
2603.0     2.367    263.3
2613.0     2.385    260.8
2623.0     2.405    258.3
2633.0     2.427    255.8
2643.0     2.450    253.4
2653.0     2.474    251.0
2663.0     2.499    248.7
2673.0     2.525    246.4
2683.0     2.551    244.2
2693.0     2.578    242.0
2703.0     2.605    239.9
2713.0     2.631    237.8






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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