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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:36:21

Orbital Elements for HDS2276

WDS:	HDS2276	WDS ID/Discoverer
P:	165.000	Orbital period (years)
a:	0.6	Semi-major axis (arcseconds)
i:	69.2	Inclination (degrees)
Ω:	172.1	Longitude of ascending node (degrees)
T:	2022.860	Epoch of periastron passage (year)
e:	0.847	Eccentricity
ω:	180.1	Longitude of periastron (degrees)
Start-Year:	1943.0	Year
End-Year:	2107.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2276

Position:	160737.61+000157.7	Epoch-2000 right ascension and declination
WDS-ID:	16076+0002	WDS designation
Discoverer Code:	HDS2276	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	79008	Hipparcos catalog number
V1:	9.92	Magnitude of the primary
V2:	12.97	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS2276

WDS 6th Orbit including measures of HDS2276

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

Ephemeris of HDS2276

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.059     49.1
-------------------------
1943.0     1.107    172.5
1944.0     1.107    172.6
1945.0     1.105    172.7
1946.0     1.104    172.8
1947.0     1.103    172.9
1948.0     1.101    173.1
1949.0     1.099    173.2
1950.0     1.096    173.3
1951.0     1.094    173.4
1952.0     1.091    173.6
1953.0     1.088    173.7
1954.0     1.085    173.8
1955.0     1.081    173.9
1956.0     1.077    174.1
1957.0     1.073    174.2
1958.0     1.069    174.3
1959.0     1.064    174.4
1960.0     1.059    174.6
1961.0     1.054    174.7
1962.0     1.049    174.8
1963.0     1.043    175.0
1964.0     1.037    175.1
1965.0     1.031    175.3
1966.0     1.024    175.4
1967.0     1.017    175.5
1968.0     1.010    175.7
1969.0     1.003    175.8
1970.0     0.995    176.0
1971.0     0.987    176.1
1972.0     0.979    176.3
1973.0     0.970    176.4
1974.0     0.961    176.6
1975.0     0.952    176.8
1976.0     0.943    176.9
1977.0     0.933    177.1
1978.0     0.923    177.3
1979.0     0.912    177.4
1980.0     0.901    177.6
1981.0     0.890    177.8
1982.0     0.878    178.0
1983.0     0.867    178.2
1984.0     0.854    178.4
1985.0     0.842    178.6
1986.0     0.829    178.8
1987.0     0.815    179.0
1988.0     0.802    179.3
1989.0     0.787    179.5
1990.0     0.773    179.7
1991.0     0.758    180.0
1992.0     0.742    180.3
1993.0     0.726    180.5
1994.0     0.710    180.8
1995.0     0.693    181.1
1996.0     0.676    181.4
1997.0     0.658    181.8
1998.0     0.640    182.1
1999.0     0.621    182.5
2000.0     0.601    182.9
2001.0     0.581    183.3
2002.0     0.560    183.8
2003.0     0.539    184.3
2004.0     0.517    184.8
2005.0     0.494    185.4
2006.0     0.471    186.0
2007.0     0.446    186.7
2008.0     0.421    187.5
2009.0     0.395    188.4
2010.0     0.368    189.4
2011.0     0.340    190.6
2012.0     0.311    192.0
2013.0     0.281    193.7
2014.0     0.250    195.8
2015.0     0.217    198.5
2016.0     0.184    202.2
2017.0     0.149    207.6
2018.0     0.114    216.3
2019.0     0.082    232.2
2020.0     0.060    263.8
2021.0     0.062    306.8
2022.0     0.083    335.8
2023.0     0.092    354.6
2024.0     0.077     15.1
2025.0     0.059     49.1
2026.0     0.064     91.8
2027.0     0.091    117.9
2028.0     0.125    131.1
2029.0     0.160    138.5
2030.0     0.194    143.3
2031.0     0.227    146.7
2032.0     0.260    149.2
2033.0     0.291    151.2
2034.0     0.320    152.7
2035.0     0.349    154.1
2036.0     0.377    155.2
2037.0     0.403    156.2
2038.0     0.429    157.0
2039.0     0.454    157.8
2040.0     0.478    158.5
2041.0     0.502    159.1
2042.0     0.524    159.7
2043.0     0.546    160.2
2044.0     0.567    160.7
2045.0     0.588    161.1
2046.0     0.608    161.5
2047.0     0.627    161.9
2048.0     0.646    162.3
2049.0     0.664    162.6
2050.0     0.682    162.9
2051.0     0.699    163.3
2052.0     0.716    163.5
2053.0     0.732    163.8
2054.0     0.748    164.1
2055.0     0.763    164.4
2056.0     0.778    164.6
2057.0     0.792    164.9
2058.0     0.806    165.1
2059.0     0.820    165.3
2060.0     0.833    165.5
2061.0     0.846    165.7
2062.0     0.859    165.9
2063.0     0.871    166.1
2064.0     0.883    166.3
2065.0     0.894    166.5
2066.0     0.905    166.7
2067.0     0.916    166.9
2068.0     0.926    167.1
2069.0     0.936    167.2
2070.0     0.946    167.4
2071.0     0.955    167.6
2072.0     0.964    167.7
2073.0     0.973    167.9
2074.0     0.982    168.0
2075.0     0.990    168.2
2076.0     0.998    168.3
2077.0     1.005    168.5
2078.0     1.013    168.6
2079.0     1.020    168.8
2080.0     1.026    168.9
2081.0     1.033    169.1
2082.0     1.039    169.2
2083.0     1.045    169.3
2084.0     1.051    169.5
2085.0     1.056    169.6
2086.0     1.061    169.7
2087.0     1.066    169.9
2088.0     1.070    170.0
2089.0     1.075    170.1
2090.0     1.079    170.2
2091.0     1.082    170.4
2092.0     1.086    170.5
2093.0     1.089    170.6
2094.0     1.092    170.8
2095.0     1.095    170.9
2096.0     1.097    171.0
2097.0     1.100    171.1
2098.0     1.101    171.2
2099.0     1.103    171.4
2100.0     1.105    171.5
2101.0     1.106    171.6
2102.0     1.107    171.7
2103.0     1.108    171.9
2104.0     1.108    172.0
2105.0     1.108    172.1
2106.0     1.108    172.2

Disclaimer

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.