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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:34:46

Orbital Elements for A207
WDS: A207 WDS ID/Discoverer
P: 1204.600 Orbital period (years)
a: 0.95 Semi-major axis (arcseconds)
i: 31.1 Inclination (degrees)
Ω: 31.3 Longitude of ascending node (degrees)
T: 1937.270 Epoch of periastron passage (year)
e: 0.816 Eccentricity
ω: 193.9 Longitude of periastron (degrees)
Start-Year: 1423.0 Year
End-Year: 2627.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A207
Position: 021810.10+391939.8 Epoch-2000 right ascension and declination
WDS-ID: 02182+3920 WDS designation
Discoverer Code: A207 Discover designation and components
ADS number: 1762 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 10735 Hipparcos catalog number
V1: 9.69 Magnitude of the primary
V2: 10.30 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2020 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A207



WDS 6th Orbit including measures of A207

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


Ephemeris of A207
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.657      0.5
-------------------------
1423.0     1.677     47.3
1433.0     1.670     47.8
1443.0     1.662     48.3
1453.0     1.653     48.8
1463.0     1.644     49.3
1473.0     1.634     49.8
1483.0     1.623     50.3
1493.0     1.612     50.8
1503.0     1.600     51.3
1513.0     1.587     51.8
1523.0     1.573     52.4
1533.0     1.559     52.9
1543.0     1.544     53.5
1553.0     1.528     54.0
1563.0     1.511     54.6
1573.0     1.494     55.2
1583.0     1.476     55.8
1593.0     1.457     56.4
1603.0     1.437     57.1
1613.0     1.416     57.7
1623.0     1.395     58.4
1633.0     1.372     59.1
1643.0     1.349     59.8
1653.0     1.325     60.6
1663.0     1.300     61.3
1673.0     1.274     62.1
1683.0     1.247     63.0
1693.0     1.218     63.9
1703.0     1.189     64.8
1713.0     1.159     65.7
1723.0     1.128     66.8
1733.0     1.095     67.8
1743.0     1.061     69.0
1753.0     1.026     70.2
1763.0     0.990     71.5
1773.0     0.952     73.0
1783.0     0.913     74.5
1793.0     0.873     76.2
1803.0     0.830     78.0
1813.0     0.786     80.0
1823.0     0.741     82.3
1833.0     0.694     84.9
1843.0     0.644     87.9
1853.0     0.593     91.4
1863.0     0.540     95.6
1873.0     0.484    100.7
1883.0     0.428    107.1
1893.0     0.369    115.6
1903.0     0.311    127.2
1913.0     0.256    144.0
1923.0     0.210    169.0
1933.0     0.180    204.9
1943.0     0.173    249.0
1953.0     0.203    288.3
1963.0     0.261    313.7
1973.0     0.329    329.2
1983.0     0.398    339.4
1993.0     0.464    346.6
2003.0     0.528    352.1
2013.0     0.588    356.4
2023.0     0.646    359.9
2033.0     0.700      2.8
2043.0     0.752      5.4
2053.0     0.802      7.6
2063.0     0.849      9.5
2073.0     0.894     11.3
2083.0     0.937     12.9
2093.0     0.979     14.3
2103.0     1.018     15.7
2113.0     1.056     16.9
2123.0     1.092     18.1
2133.0     1.127     19.2
2143.0     1.160     20.2
2153.0     1.192     21.2
2163.0     1.223     22.1
2173.0     1.253     22.9
2183.0     1.281     23.8
2193.0     1.308     24.6
2203.0     1.334     25.3
2213.0     1.359     26.1
2223.0     1.383     26.8
2233.0     1.406     27.5
2243.0     1.428     28.1
2253.0     1.449     28.8
2263.0     1.469     29.4
2273.0     1.488     30.0
2283.0     1.506     30.6
2293.0     1.524     31.2
2303.0     1.540     31.8
2313.0     1.556     32.3
2323.0     1.571     32.9
2333.0     1.585     33.4
2343.0     1.598     33.9
2353.0     1.611     34.4
2363.0     1.623     35.0
2373.0     1.634     35.5
2383.0     1.644     36.0
2393.0     1.653     36.5
2403.0     1.662     36.9
2413.0     1.670     37.4
2423.0     1.677     37.9
2433.0     1.684     38.4
2443.0     1.690     38.8
2453.0     1.695     39.3
2463.0     1.700     39.8
2473.0     1.704     40.2
2483.0     1.707     40.7
2493.0     1.709     41.1
2503.0     1.711     41.6
2513.0     1.712     42.1
2523.0     1.713     42.5
2533.0     1.712     43.0
2543.0     1.711     43.4
2553.0     1.710     43.9
2563.0     1.708     44.3
2573.0     1.705     44.8
2583.0     1.701     45.3
2593.0     1.697     45.7
2603.0     1.692     46.2
2613.0     1.687     46.6
2623.0     1.680     47.1






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.


www.stella-vega.de