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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:04:16

Orbital Elements for A264AB
WDS: A264AB WDS ID/Discoverer
P: 1281.320 Orbital period (years)
a: 7.04727 Semi-major axis (arcseconds)
i: 90.691 Inclination (degrees)
Ω: 107.961 Longitude of ascending node (degrees)
T: 2123.763 Epoch of periastron passage (year)
e: 0.80383 Eccentricity
ω: 260.975 Longitude of periastron (degrees)
Start-Year: 1385.0 Year
End-Year: 2665.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A264AB
Position: 191242.44+243436.3 Epoch-2000 right ascension and declination
WDS-ID: 19127+2435 WDS designation
Discoverer Code: A264AB Discover designation and components
ADS number: 12166 Aitken Double Star catalog
HD number: 179736 HD catalog number
Hipparcos number: 94387 Hipparcos catalog number
V1: 8.20 Magnitude of the primary
V2: 11.90 Magnitude of the secondary
Equinox: Equinox
Date: 2008 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A264AB



WDS 6th Orbit including measures of A264AB

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


Ephemeris of A264AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     3.388    288.8
-------------------------
1385.0     3.055    105.2
1395.0     2.952    105.1
1405.0     2.848    105.0
1415.0     2.743    104.9
1425.0     2.637    104.7
1435.0     2.530    104.6
1445.0     2.421    104.4
1455.0     2.312    104.2
1465.0     2.202    104.0
1475.0     2.090    103.8
1485.0     1.979    103.6
1495.0     1.866    103.3
1505.0     1.752    103.0
1515.0     1.638    102.6
1525.0     1.524    102.2
1535.0     1.408    101.8
1545.0     1.292    101.2
1555.0     1.176    100.6
1565.0     1.060     99.8
1575.0     0.943     98.8
1585.0     0.827     97.5
1595.0     0.710     95.8
1605.0     0.594     93.4
1615.0     0.480     89.9
1625.0     0.368     84.2
1635.0     0.262     73.8
1645.0     0.176     51.5
1655.0     0.147      9.2
1665.0     0.203    333.5
1675.0     0.299    316.7
1685.0     0.407    308.5
1695.0     0.520    303.7
1705.0     0.636    300.7
1715.0     0.752    298.6
1725.0     0.868    297.1
1735.0     0.984    295.9
1745.0     1.100    295.0
1755.0     1.216    294.2
1765.0     1.331    293.6
1775.0     1.446    293.1
1785.0     1.559    292.7
1795.0     1.672    292.3
1805.0     1.783    291.9
1815.0     1.893    291.6
1825.0     2.002    291.4
1835.0     2.109    291.1
1845.0     2.214    290.9
1855.0     2.318    290.7
1865.0     2.419    290.6
1875.0     2.518    290.4
1885.0     2.614    290.2
1895.0     2.707    290.1
1905.0     2.797    290.0
1915.0     2.883    289.8
1925.0     2.964    289.7
1935.0     3.042    289.6
1945.0     3.114    289.5
1955.0     3.180    289.4
1965.0     3.240    289.3
1975.0     3.291    289.2
1985.0     3.335    289.1
1995.0     3.368    289.0
2005.0     3.389    289.0
2015.0     3.397    288.9
2025.0     3.388    288.8
2035.0     3.360    288.7
2045.0     3.306    288.6
2055.0     3.223    288.5
2065.0     3.099    288.4
2075.0     2.923    288.3
2085.0     2.673    288.2
2095.0     2.319    288.0
2105.0     1.806    287.8
2115.0     1.065    287.3
2125.0     0.090    277.3
2135.0     0.918    108.9
2145.0     1.751    108.3
2155.0     2.397    108.1
2165.0     2.903    107.9
2175.0     3.308    107.8
2185.0     3.639    107.8
2195.0     3.913    107.7
2205.0     4.142    107.6
2215.0     4.335    107.6
2225.0     4.498    107.5
2235.0     4.636    107.5
2245.0     4.752    107.4
2255.0     4.850    107.4
2265.0     4.932    107.3
2275.0     5.000    107.3
2285.0     5.054    107.3
2295.0     5.097    107.2
2305.0     5.130    107.2
2315.0     5.153    107.1
2325.0     5.167    107.1
2335.0     5.174    107.1
2345.0     5.173    107.0
2355.0     5.166    107.0
2365.0     5.152    107.0
2375.0     5.133    106.9
2385.0     5.108    106.9
2395.0     5.078    106.8
2405.0     5.043    106.8
2415.0     5.003    106.8
2425.0     4.960    106.7
2435.0     4.912    106.7
2445.0     4.861    106.6
2455.0     4.806    106.6
2465.0     4.748    106.6
2475.0     4.686    106.5
2485.0     4.622    106.5
2495.0     4.554    106.4
2505.0     4.484    106.4
2515.0     4.411    106.3
2525.0     4.336    106.3
2535.0     4.258    106.2
2545.0     4.178    106.2
2555.0     4.095    106.1
2565.0     4.011    106.0
2575.0     3.924    106.0
2585.0     3.836    105.9
2595.0     3.746    105.8
2605.0     3.654    105.8
2615.0     3.560    105.7
2625.0     3.465    105.6
2635.0     3.368    105.5
2645.0     3.269    105.4
2655.0     3.170    105.3






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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