Double Star Calculator - Orbit

Orbital Elements for SEE16

WDS:	SEE16	WDS ID/Discoverer
P:	228.000	Orbital period (years)
a:	0.404	Semi-major axis (arcseconds)
i:	101.8	Inclination (degrees)
Ω:	33.8	Longitude of ascending node (degrees)
T:	1971.900	Epoch of periastron passage (year)
e:	0.585	Eccentricity
ω:	133.1	Longitude of periastron (degrees)
Start-Year:	1911.0	Year
End-Year:	2139.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE16
Position:	020559.35-220903.0	Epoch-2000 right ascension and declination
WDS-ID:	02060-2209	WDS designation
Discoverer Code:	SEE16	Discover designation and components
ADS number:	1665	Aitken Double Star catalog
HD number:	12912	HD catalog number
Hipparcos number:	9798	Hipparcos catalog number
V1:	8.88	Magnitude of the primary
V2:	9.30	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2019h	Reference

Double Star Orbit for SEE16

WDS 6th Orbit including measures of SEE16

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

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of SEE16

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.124    89.95
--------------------------
1911.00    0.515    37.25
1912.00    0.513    37.09
1913.00    0.511    36.93
1914.00    0.508    36.76
1915.00    0.505    36.60
1916.00    0.503    36.43
1917.00    0.500    36.26
1918.00    0.496    36.08
1919.00    0.493    35.91
1920.00    0.489    35.73
1921.00    0.486    35.55
1922.00    0.482    35.37
1923.00    0.477    35.18
1924.00    0.473    35.00
1925.00    0.468    34.80
1926.00    0.464    34.61
1927.00    0.459    34.40
1928.00    0.453    34.20
1929.00    0.448    33.99
1930.00    0.442    33.77
1931.00    0.436    33.55
1932.00    0.430    33.32
1933.00    0.423    33.09
1934.00    0.416    32.84
1935.00    0.409    32.59
1936.00    0.402    32.33
1937.00    0.394    32.06
1938.00    0.386    31.78
1939.00    0.378    31.49
1940.00    0.369    31.18
1941.00    0.360    30.86
1942.00    0.351    30.53
1943.00    0.341    30.17
1944.00    0.331    29.79
1945.00    0.321    29.39
1946.00    0.310    28.96
1947.00    0.299    28.50
1948.00    0.288    28.00
1949.00    0.276    27.46
1950.00    0.263    26.88
1951.00    0.250    26.23
1952.00    0.237    25.51
1953.00    0.223    24.70
1954.00    0.209    23.79
1955.00    0.194    22.74
1956.00    0.179    21.51
1957.00    0.164    20.06
1958.00    0.148    18.29
1959.00    0.132    16.09
1960.00    0.115    13.27
1961.00    0.098     9.48
1962.00    0.082     4.14
1963.00    0.066   356.13
1964.00    0.051   343.33
1965.00    0.041   322.55
1966.00    0.038   294.13
1967.00    0.045   268.25
1968.00    0.057   251.23
1969.00    0.072   240.76
1970.00    0.088   233.99
1971.00    0.104   229.29
1972.00    0.119   225.82
1973.00    0.133   223.12
1974.00    0.146   220.92
1975.00    0.158   219.07
1976.00    0.168   217.47
1977.00    0.177   216.04
1978.00    0.185   214.74
1979.00    0.191   213.53
1980.00    0.196   212.39
1981.00    0.200   211.30
1982.00    0.202   210.25
1983.00    0.204   209.21
1984.00    0.205   208.19
1985.00    0.205   207.17
1986.00    0.204   206.15
1987.00    0.202   205.11
1988.00    0.200   204.06
1989.00    0.198   202.98
1990.00    0.195   201.86
1991.00    0.191   200.71
1992.00    0.187   199.52
1993.00    0.183   198.27
1994.00    0.179   196.97
1995.00    0.174   195.59
1996.00    0.169   194.14
1997.00    0.164   192.61
1998.00    0.159   190.98
1999.00    0.154   189.24
2000.00    0.149   187.38
2001.00    0.144   185.40
2002.00    0.139   183.26
2003.00    0.134   180.96
2004.00    0.129   178.49
2005.00    0.124   175.81
2006.00    0.120   172.93
2007.00    0.115   169.83
2008.00    0.111   166.48
2009.00    0.107   162.89
2010.00    0.104   159.05
2011.00    0.101   154.96
2012.00    0.098   150.64
2013.00    0.096   146.12
2014.00    0.095   141.44
2015.00    0.094   136.65
2016.00    0.094   131.80
2017.00    0.094   126.96
2018.00    0.095   122.20
2019.00    0.097   117.56
2020.00    0.099   113.11
2021.00    0.102   108.87
2022.00    0.105   104.86
2023.00    0.109   101.11
2024.00    0.113    97.62
2025.00    0.117    94.37
2026.00    0.122    91.37
2027.00    0.127    88.59
2028.00    0.132    86.02
2029.00    0.137    83.66
2030.00    0.143    81.47
2031.00    0.148    79.44
2032.00    0.154    77.57
2033.00    0.160    75.84
2034.00    0.166    74.22
2035.00    0.172    72.73
2036.00    0.178    71.33
2037.00    0.184    70.02
2038.00    0.190    68.80
2039.00    0.196    67.66
2040.00    0.203    66.59
2041.00    0.209    65.58
2042.00    0.215    64.63
2043.00    0.221    63.73
2044.00    0.228    62.88
2045.00    0.234    62.08
2046.00    0.240    61.31
2047.00    0.246    60.59
2048.00    0.252    59.90
2049.00    0.258    59.25
2050.00    0.264    58.62
2051.00    0.271    58.02
2052.00    0.277    57.45
2053.00    0.283    56.90
2054.00    0.288    56.38
2055.00    0.294    55.88
2056.00    0.300    55.39
2057.00    0.306    54.93
2058.00    0.312    54.48
2059.00    0.317    54.05
2060.00    0.323    53.63
2061.00    0.329    53.23
2062.00    0.334    52.84
2063.00    0.340    52.46
2064.00    0.345    52.10
2065.00    0.351    51.75
2066.00    0.356    51.40
2067.00    0.361    51.07
2068.00    0.366    50.75
2069.00    0.371    50.43
2070.00    0.377    50.13
2071.00    0.382    49.83
2072.00    0.386    49.54
2073.00    0.391    49.26
2074.00    0.396    48.98
2075.00    0.401    48.71
2076.00    0.406    48.45
2077.00    0.410    48.19
2078.00    0.415    47.94
2079.00    0.419    47.70
2080.00    0.424    47.46
2081.00    0.428    47.22
2082.00    0.432    46.99
2083.00    0.436    46.76
2084.00    0.440    46.54
2085.00    0.444    46.32
2086.00    0.448    46.11
2087.00    0.452    45.89
2088.00    0.456    45.69
2089.00    0.460    45.48
2090.00    0.463    45.28
2091.00    0.467    45.08
2092.00    0.470    44.89
2093.00    0.473    44.70
2094.00    0.477    44.51
2095.00    0.480    44.32
2096.00    0.483    44.14
2097.00    0.486    43.96
2098.00    0.489    43.78
2099.00    0.492    43.60
2100.00    0.494    43.42
2101.00    0.497    43.25
2102.00    0.500    43.08
2103.00    0.502    42.91
2104.00    0.504    42.74
2105.00    0.507    42.57
2106.00    0.509    42.40
2107.00    0.511    42.24
2108.00    0.513    42.08
2109.00    0.515    41.91
2110.00    0.516    41.75
2111.00    0.518    41.59
2112.00    0.520    41.43
2113.00    0.521    41.28
2114.00    0.522    41.12
2115.00    0.524    40.96
2116.00    0.525    40.81
2117.00    0.526    40.65
2118.00    0.527    40.50
2119.00    0.527    40.34
2120.00    0.528    40.19
2121.00    0.528    40.04
2122.00    0.529    39.89
2123.00    0.529    39.73
2124.00    0.529    39.58
2125.00    0.529    39.43
2126.00    0.529    39.27
2127.00    0.529    39.12
2128.00    0.529    38.97
2129.00    0.528    38.82
2130.00    0.527    38.66
2131.00    0.527    38.51
2132.00    0.526    38.35
2133.00    0.525    38.20
2134.00    0.523    38.04
2135.00    0.522    37.89
2136.00    0.521    37.73
2137.00    0.519    37.57
2138.00    0.517    37.41

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 14:57:02