Double Star Calculator - Orbit

Orbital Elements for A1097AB

WDS:	A1097AB	WDS ID/Discoverer
P:	224.700	Orbital period (years)
a:	0.409	Semi-major axis (arcseconds)
i:	49.7	Inclination (degrees)
Ω:	60.1	Longitude of ascending node (degrees)
T:	1920.690	Epoch of periastron passage (year)
e:	0.105	Eccentricity
ω:	45.7	Longitude of periastron (degrees)
Start-Year:	1912.65	Year
End-Year:	2137.35	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1097AB
Position:	140200.60+571328.6	Epoch-2000 right ascension and declination
WDS-ID:	14020+5713	WDS designation
Discoverer Code:	A1097AB	Discover designation and components
ADS number:	9089	Aitken Double Star catalog
HD number:	122740	HD catalog number
Hipparcos number:	68554	Hipparcos catalog number
V1:	9.09	Magnitude of the primary
V2:	8.24	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1997	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Sca2000a	Reference

Double Star Orbit for A1097AB

WDS 6th Orbit including measures of A1097AB

-- 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 A1097AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.401   266.21
--------------------------
1912.65    0.340    80.39
1913.65    0.336    81.89
1914.65    0.332    83.44
1915.65    0.328    85.02
1916.65    0.324    86.63
1917.65    0.320    88.30
1918.65    0.316    90.00
1919.65    0.311    91.76
1920.65    0.307    93.56
1921.65    0.302    95.42
1922.65    0.298    97.33
1923.65    0.294    99.30
1924.65    0.289   101.33
1925.65    0.285   103.42
1926.65    0.281   105.58
1927.65    0.277   107.80
1928.65    0.273   110.08
1929.65    0.269   112.43
1930.65    0.265   114.85
1931.65    0.262   117.34
1932.65    0.258   119.89
1933.65    0.255   122.50
1934.65    0.253   125.17
1935.65    0.250   127.89
1936.65    0.248   130.67
1937.65    0.246   133.49
1938.65    0.245   136.34
1939.65    0.244   139.22
1940.65    0.243   142.13
1941.65    0.243   145.05
1942.65    0.243   147.97
1943.65    0.243   150.88
1944.65    0.244   153.78
1945.65    0.246   156.65
1946.65    0.247   159.49
1947.65    0.249   162.30
1948.65    0.251   165.05
1949.65    0.254   167.75
1950.65    0.257   170.39
1951.65    0.260   172.97
1952.65    0.264   175.49
1953.65    0.267   177.94
1954.65    0.271   180.31
1955.65    0.275   182.62
1956.65    0.280   184.86
1957.65    0.284   187.03
1958.65    0.289   189.13
1959.65    0.294   191.16
1960.65    0.298   193.13
1961.65    0.303   195.03
1962.65    0.308   196.87
1963.65    0.313   198.66
1964.65    0.319   200.38
1965.65    0.324   202.05
1966.65    0.329   203.68
1967.65    0.334   205.25
1968.65    0.339   206.77
1969.65    0.344   208.25
1970.65    0.349   209.69
1971.65    0.354   211.09
1972.65    0.358   212.45
1973.65    0.363   213.78
1974.65    0.368   215.07
1975.65    0.372   216.33
1976.65    0.377   217.56
1977.65    0.381   218.76
1978.65    0.385   219.94
1979.65    0.389   221.09
1980.65    0.393   222.21
1981.65    0.397   223.32
1982.65    0.400   224.41
1983.65    0.404   225.47
1984.65    0.407   226.52
1985.65    0.410   227.55
1986.65    0.413   228.57
1987.65    0.416   229.57
1988.65    0.419   230.56
1989.65    0.421   231.54
1990.65    0.424   232.50
1991.65    0.426   233.46
1992.65    0.428   234.41
1993.65    0.430   235.34
1994.65    0.431   236.27
1995.65    0.433   237.20
1996.65    0.434   238.11
1997.65    0.435   239.02
1998.65    0.436   239.93
1999.65    0.437   240.84
2000.65    0.438   241.74
2001.65    0.438   242.64
2002.65    0.439   243.53
2003.65    0.439   244.43
2004.65    0.439   245.32
2005.65    0.438   246.22
2006.65    0.438   247.12
2007.65    0.438   248.02
2008.65    0.437   248.92
2009.65    0.436   249.82
2010.65    0.435   250.73
2011.65    0.434   251.65
2012.65    0.433   252.56
2013.65    0.431   253.49
2014.65    0.429   254.42
2015.65    0.428   255.36
2016.65    0.426   256.31
2017.65    0.424   257.26
2018.65    0.422   258.23
2019.65    0.419   259.20
2020.65    0.417   260.19
2021.65    0.414   261.18
2022.65    0.412   262.19
2023.65    0.409   263.22
2024.65    0.406   264.25
2025.65    0.403   265.31
2026.65    0.400   266.38
2027.65    0.397   267.46
2028.65    0.394   268.56
2029.65    0.390   269.68
2030.65    0.387   270.83
2031.65    0.384   271.99
2032.65    0.380   273.17
2033.65    0.376   274.37
2034.65    0.373   275.60
2035.65    0.369   276.85
2036.65    0.365   278.13
2037.65    0.362   279.43
2038.65    0.358   280.77
2039.65    0.354   282.12
2040.65    0.351   283.51
2041.65    0.347   284.93
2042.65    0.343   286.38
2043.65    0.339   287.86
2044.65    0.336   289.38
2045.65    0.332   290.92
2046.65    0.328   292.50
2047.65    0.325   294.12
2048.65    0.321   295.77
2049.65    0.318   297.46
2050.65    0.315   299.18
2051.65    0.312   300.94
2052.65    0.309   302.73
2053.65    0.306   304.56
2054.65    0.303   306.42
2055.65    0.300   308.32
2056.65    0.298   310.25
2057.65    0.295   312.21
2058.65    0.293   314.21
2059.65    0.291   316.23
2060.65    0.289   318.27
2061.65    0.288   320.35
2062.65    0.286   322.44
2063.65    0.285   324.55
2064.65    0.284   326.68
2065.65    0.283   328.83
2066.65    0.283   330.98
2067.65    0.282   333.14
2068.65    0.282   335.30
2069.65    0.282   337.47
2070.65    0.283   339.63
2071.65    0.283   341.78
2072.65    0.284   343.93
2073.65    0.285   346.06
2074.65    0.286   348.18
2075.65    0.287   350.28
2076.65    0.289   352.35
2077.65    0.291   354.41
2078.65    0.292   356.44
2079.65    0.294   358.44
2080.65    0.297     0.41
2081.65    0.299     2.36
2082.65    0.301     4.27
2083.65    0.304     6.15
2084.65    0.307     8.00
2085.65    0.309     9.82
2086.65    0.312    11.61
2087.65    0.315    13.36
2088.65    0.318    15.08
2089.65    0.321    16.77
2090.65    0.324    18.42
2091.65    0.327    20.05
2092.65    0.330    21.65
2093.65    0.333    23.21
2094.65    0.336    24.75
2095.65    0.339    26.27
2096.65    0.342    27.75
2097.65    0.345    29.21
2098.65    0.348    30.65
2099.65    0.351    32.06
2100.65    0.353    33.45
2101.65    0.356    34.82
2102.65    0.358    36.17
2103.65    0.361    37.50
2104.65    0.363    38.82
2105.65    0.365    40.12
2106.65    0.367    41.40
2107.65    0.369    42.68
2108.65    0.371    43.93
2109.65    0.372    45.18
2110.65    0.374    46.42
2111.65    0.375    47.65
2112.65    0.376    48.87
2113.65    0.377    50.09
2114.65    0.378    51.30
2115.65    0.378    52.50
2116.65    0.379    53.71
2117.65    0.379    54.91
2118.65    0.379    56.11
2119.65    0.378    57.32
2120.65    0.378    58.52
2121.65    0.377    59.73
2122.65    0.376    60.95
2123.65    0.375    62.17
2124.65    0.374    63.40
2125.65    0.372    64.64
2126.65    0.371    65.89
2127.65    0.369    67.15
2128.65    0.366    68.42
2129.65    0.364    69.72
2130.65    0.362    71.03
2131.65    0.359    72.35
2132.65    0.356    73.70
2133.65    0.353    75.08
2134.65    0.350    76.47
2135.65    0.346    77.90
2136.65    0.343    79.35

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 17:01:28