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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:37:03

Orbital Elements for A1278
WDS: A1278 WDS ID/Discoverer
P: 108.590 Orbital period (years)
a: 0.234 Semi-major axis (arcseconds)
i: 104.7 Inclination (degrees)
Ω: 131.0 Longitude of ascending node (degrees)
T: 2000.640 Epoch of periastron passage (year)
e: 0.711 Eccentricity
ω: 73.5 Longitude of periastron (degrees)
Start-Year: 1971.0 Year
End-Year: 2079.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1278
Position: 023813.90+460403.0 Epoch-2000 right ascension and declination
WDS-ID: 02382+4604 WDS designation
Discoverer Code: A1278 Discover designation and components
ADS number: 1992 Aitken Double Star catalog
HD number: 16283 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.9 Magnitude of the primary
V2: 9.0 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A1278



WDS 6th Orbit including measures of A1278

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


Ephemeris of A1278
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.225    296.6
-------------------------
1971.0     0.092    200.7
1972.0     0.093    196.8
1973.0     0.094    193.1
1974.0     0.095    189.5
1975.0     0.097    186.0
1976.0     0.099    182.6
1977.0     0.101    179.3
1978.0     0.103    176.2
1979.0     0.106    173.3
1980.0     0.108    170.4
1981.0     0.111    167.7
1982.0     0.113    165.2
1983.0     0.116    162.7
1984.0     0.118    160.3
1985.0     0.121    158.1
1986.0     0.123    155.9
1987.0     0.125    153.8
1988.0     0.126    151.7
1989.0     0.127    149.7
1990.0     0.128    147.7
1991.0     0.128    145.7
1992.0     0.127    143.7
1993.0     0.125    141.7
1994.0     0.122    139.6
1995.0     0.117    137.3
1996.0     0.110    134.8
1997.0     0.099    131.8
1998.0     0.085    128.0
1999.0     0.066    122.3
2000.0     0.041    110.5
2001.0     0.019     65.2
2002.0     0.030    346.8
2003.0     0.056    327.6
2004.0     0.081    320.6
2005.0     0.102    316.7
2006.0     0.120    314.0
2007.0     0.136    312.1
2008.0     0.149    310.5
2009.0     0.161    309.1
2010.0     0.171    308.0
2011.0     0.180    306.9
2012.0     0.187    305.9
2013.0     0.194    305.1
2014.0     0.200    304.2
2015.0     0.205    303.4
2016.0     0.209    302.7
2017.0     0.213    302.0
2018.0     0.216    301.2
2019.0     0.218    300.6
2020.0     0.220    299.9
2021.0     0.222    299.2
2022.0     0.223    298.6
2023.0     0.224    297.9
2024.0     0.225    297.3
2025.0     0.225    296.6
2026.0     0.225    296.0
2027.0     0.225    295.4
2028.0     0.224    294.7
2029.0     0.223    294.1
2030.0     0.222    293.4
2031.0     0.221    292.8
2032.0     0.219    292.1
2033.0     0.218    291.4
2034.0     0.216    290.7
2035.0     0.214    290.0
2036.0     0.211    289.3
2037.0     0.209    288.6
2038.0     0.207    287.8
2039.0     0.204    287.0
2040.0     0.201    286.3
2041.0     0.198    285.4
2042.0     0.195    284.6
2043.0     0.192    283.7
2044.0     0.189    282.9
2045.0     0.186    281.9
2046.0     0.182    281.0
2047.0     0.179    280.0
2048.0     0.175    279.0
2049.0     0.172    277.9
2050.0     0.168    276.8
2051.0     0.165    275.6
2052.0     0.161    274.4
2053.0     0.157    273.1
2054.0     0.153    271.7
2055.0     0.149    270.3
2056.0     0.146    268.8
2057.0     0.142    267.3
2058.0     0.138    265.6
2059.0     0.134    263.9
2060.0     0.131    262.0
2061.0     0.127    260.1
2062.0     0.123    258.0
2063.0     0.120    255.8
2064.0     0.117    253.5
2065.0     0.113    251.1
2066.0     0.110    248.5
2067.0     0.107    245.7
2068.0     0.104    242.8
2069.0     0.102    239.8
2070.0     0.099    236.6
2071.0     0.097    233.2
2072.0     0.095    229.7
2073.0     0.094    226.1
2074.0     0.093    222.4
2075.0     0.092    218.6
2076.0     0.091    214.7
2077.0     0.091    210.8
2078.0     0.091    206.9






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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