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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:37:48

Orbital Elements for A2749
WDS: A2749 WDS ID/Discoverer
P: 179.000 Orbital period (years)
a: 0.33 Semi-major axis (arcseconds)
i: 35.0 Inclination (degrees)
Ω: 98.7 Longitude of ascending node (degrees)
T: 1916.000 Epoch of periastron passage (year)
e: 0.1 Eccentricity
ω: 27.0 Longitude of periastron (degrees)
Start-Year: 1936.0 Year
End-Year: 2114.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2749
Position: 080732.31-121212.9 Epoch-2000 right ascension and declination
WDS-ID: 08075-1212 WDS designation
Discoverer Code: A2749 Discover designation and components
ADS number: 6606 Aitken Double Star catalog
HD number: 67430 HD catalog number
Hipparcos number: 39753 Hipparcos catalog number
V1: 10.34 Magnitude of the primary
V2: 10.12 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A2749



WDS 6th Orbit including measures of A2749

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


Ephemeris of A2749
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.310    333.1
-------------------------
1936.0     0.255    171.0
1937.0     0.254    173.8
1938.0     0.254    176.5
1939.0     0.254    179.3
1940.0     0.255    182.1
1941.0     0.255    184.8
1942.0     0.256    187.5
1943.0     0.257    190.3
1944.0     0.258    193.0
1945.0     0.259    195.6
1946.0     0.260    198.3
1947.0     0.262    200.9
1948.0     0.264    203.5
1949.0     0.266    206.0
1950.0     0.268    208.6
1951.0     0.270    211.0
1952.0     0.273    213.4
1953.0     0.275    215.8
1954.0     0.278    218.2
1955.0     0.281    220.4
1956.0     0.283    222.7
1957.0     0.286    224.9
1958.0     0.289    227.0
1959.0     0.292    229.1
1960.0     0.295    231.2
1961.0     0.298    233.2
1962.0     0.302    235.2
1963.0     0.305    237.2
1964.0     0.308    239.1
1965.0     0.311    240.9
1966.0     0.314    242.8
1967.0     0.317    244.6
1968.0     0.320    246.3
1969.0     0.322    248.1
1970.0     0.325    249.8
1971.0     0.328    251.4
1972.0     0.331    253.1
1973.0     0.333    254.7
1974.0     0.336    256.3
1975.0     0.338    257.9
1976.0     0.340    259.4
1977.0     0.342    261.0
1978.0     0.344    262.5
1979.0     0.346    264.0
1980.0     0.348    265.5
1981.0     0.350    266.9
1982.0     0.351    268.4
1983.0     0.353    269.8
1984.0     0.354    271.3
1985.0     0.355    272.7
1986.0     0.356    274.1
1987.0     0.357    275.5
1988.0     0.358    276.9
1989.0     0.358    278.3
1990.0     0.359    279.7
1991.0     0.359    281.0
1992.0     0.360    282.4
1993.0     0.360    283.8
1994.0     0.360    285.2
1995.0     0.360    286.6
1996.0     0.359    288.0
1997.0     0.359    289.3
1998.0     0.358    290.7
1999.0     0.358    292.1
2000.0     0.357    293.5
2001.0     0.356    294.9
2002.0     0.355    296.3
2003.0     0.354    297.8
2004.0     0.353    299.2
2005.0     0.351    300.6
2006.0     0.350    302.1
2007.0     0.348    303.5
2008.0     0.347    305.0
2009.0     0.345    306.5
2010.0     0.343    308.0
2011.0     0.341    309.6
2012.0     0.339    311.1
2013.0     0.337    312.7
2014.0     0.335    314.2
2015.0     0.333    315.8
2016.0     0.331    317.5
2017.0     0.329    319.1
2018.0     0.326    320.8
2019.0     0.324    322.5
2020.0     0.322    324.2
2021.0     0.319    325.9
2022.0     0.317    327.7
2023.0     0.315    329.5
2024.0     0.312    331.3
2025.0     0.310    333.1
2026.0     0.308    335.0
2027.0     0.305    336.9
2028.0     0.303    338.8
2029.0     0.301    340.8
2030.0     0.299    342.8
2031.0     0.297    344.8
2032.0     0.295    346.8
2033.0     0.293    348.9
2034.0     0.291    351.0
2035.0     0.289    353.1
2036.0     0.288    355.2
2037.0     0.286    357.4
2038.0     0.285    359.6
2039.0     0.284      1.8
2040.0     0.282      4.0
2041.0     0.281      6.3
2042.0     0.280      8.5
2043.0     0.280     10.8
2044.0     0.279     13.1
2045.0     0.278     15.4
2046.0     0.278     17.7
2047.0     0.278     20.0
2048.0     0.278     22.3
2049.0     0.278     24.6
2050.0     0.278     27.0
2051.0     0.278     29.3
2052.0     0.278     31.6
2053.0     0.279     33.9
2054.0     0.279     36.2
2055.0     0.280     38.5
2056.0     0.281     40.7
2057.0     0.282     43.0
2058.0     0.283     45.2
2059.0     0.284     47.4
2060.0     0.285     49.7
2061.0     0.286     51.9
2062.0     0.287     54.0
2063.0     0.288     56.2
2064.0     0.289     58.3
2065.0     0.290     60.5
2066.0     0.291     62.6
2067.0     0.293     64.7
2068.0     0.294     66.7
2069.0     0.295     68.8
2070.0     0.296     70.9
2071.0     0.297     72.9
2072.0     0.297     74.9
2073.0     0.298     76.9
2074.0     0.299     78.9
2075.0     0.300     80.9
2076.0     0.300     82.9
2077.0     0.301     84.9
2078.0     0.301     86.9
2079.0     0.301     88.8
2080.0     0.301     90.8
2081.0     0.301     92.8
2082.0     0.301     94.7
2083.0     0.300     96.7
2084.0     0.300     98.7
2085.0     0.299    100.7
2086.0     0.299    102.7
2087.0     0.298    104.7
2088.0     0.297    106.7
2089.0     0.296    108.7
2090.0     0.294    110.8
2091.0     0.293    112.9
2092.0     0.292    115.0
2093.0     0.290    117.1
2094.0     0.288    119.2
2095.0     0.287    121.4
2096.0     0.285    123.5
2097.0     0.283    125.8
2098.0     0.281    128.0
2099.0     0.279    130.3
2100.0     0.277    132.6
2101.0     0.275    134.9
2102.0     0.273    137.3
2103.0     0.271    139.7
2104.0     0.269    142.1
2105.0     0.268    144.6
2106.0     0.266    147.1
2107.0     0.264    149.7
2108.0     0.262    152.2
2109.0     0.261    154.9
2110.0     0.259    157.5
2111.0     0.258    160.2
2112.0     0.257    162.8
2113.0     0.256    165.6






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