Double Star Calculator - Orbit

Orbital Elements for A1494

WDS:	A1494	WDS ID/Discoverer
P:	190.000	Orbital period (years)
a:	0.24	Semi-major axis (arcseconds)
i:	116.9	Inclination (degrees)
Ω:	15.6	Longitude of ascending node (degrees)
T:	2003.700	Epoch of periastron passage (year)
e:	0.45	Eccentricity
ω:	1.7	Longitude of periastron (degrees)
Start-Year:	1930.0	Year
End-Year:	2120.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1494
Position:	234224.43+390329.4	Epoch-2000 right ascension and declination
WDS-ID:	23424+3903	WDS designation
Discoverer Code:	A1494	Discover designation and components
ADS number:	16939	Aitken Double Star catalog
HD number:	222648	HD catalog number
Hipparcos number:	116952	Hipparcos catalog number
V1:	9.30	Magnitude of the primary
V2:	10.78	Magnitude of the secondary
Equinox:		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:	Gur2020	Reference

Double Star Orbit for A1494

WDS 6th Orbit including measures of A1494

-- 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 A1494

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.091   273.08
--------------------------
1930.00    0.320   186.61
1931.00    0.318   186.18
1932.00    0.315   185.74
1933.00    0.312   185.29
1934.00    0.310   184.83
1935.00    0.307   184.37
1936.00    0.304   183.89
1937.00    0.300   183.41
1938.00    0.297   182.92
1939.00    0.294   182.41
1940.00    0.290   181.89
1941.00    0.286   181.36
1942.00    0.283   180.82
1943.00    0.279   180.26
1944.00    0.275   179.68
1945.00    0.271   179.09
1946.00    0.267   178.48
1947.00    0.262   177.85
1948.00    0.258   177.20
1949.00    0.254   176.53
1950.00    0.249   175.83
1951.00    0.244   175.10
1952.00    0.240   174.35
1953.00    0.235   173.57
1954.00    0.230   172.75
1955.00    0.225   171.89
1956.00    0.219   171.00
1957.00    0.214   170.06
1958.00    0.209   169.07
1959.00    0.203   168.04
1960.00    0.198   166.94
1961.00    0.192   165.78
1962.00    0.187   164.55
1963.00    0.181   163.25
1964.00    0.175   161.86
1965.00    0.169   160.37
1966.00    0.164   158.78
1967.00    0.158   157.07
1968.00    0.152   155.23
1969.00    0.146   153.25
1970.00    0.140   151.09
1971.00    0.135   148.76
1972.00    0.129   146.22
1973.00    0.123   143.45
1974.00    0.118   140.42
1975.00    0.113   137.11
1976.00    0.108   133.49
1977.00    0.103   129.54
1978.00    0.099   125.24
1979.00    0.095   120.58
1980.00    0.092   115.56
1981.00    0.089   110.20
1982.00    0.087   104.56
1983.00    0.086    98.70
1984.00    0.086    92.70
1985.00    0.086    86.68
1986.00    0.087    80.73
1987.00    0.088    74.94
1988.00    0.090    69.39
1989.00    0.093    64.12
1990.00    0.096    59.18
1991.00    0.099    54.57
1992.00    0.103    50.27
1993.00    0.107    46.27
1994.00    0.111    42.55
1995.00    0.114    39.07
1996.00    0.118    35.80
1997.00    0.121    32.73
1998.00    0.124    29.80
1999.00    0.127    27.01
2000.00    0.129    24.32
2001.00    0.131    21.70
2002.00    0.132    19.14
2003.00    0.132    16.60
2004.00    0.132    14.07
2005.00    0.131    11.52
2006.00    0.130     8.93
2007.00    0.128     6.27
2008.00    0.125     3.51
2009.00    0.122     0.64
2010.00    0.119   357.61
2011.00    0.115   354.40
2012.00    0.112   350.98
2013.00    0.108   347.31
2014.00    0.104   343.36
2015.00    0.100   339.09
2016.00    0.096   334.47
2017.00    0.092   329.50
2018.00    0.089   324.16
2019.00    0.087   318.47
2020.00    0.085   312.49
2021.00    0.084   306.29
2022.00    0.083   299.97
2023.00    0.084   293.65
2024.00    0.085   287.44
2025.00    0.087   281.46
2026.00    0.090   275.78
2027.00    0.093   270.48
2028.00    0.097   265.57
2029.00    0.101   261.05
2030.00    0.106   256.93
2031.00    0.111   253.18
2032.00    0.116   249.76
2033.00    0.122   246.65
2034.00    0.128   243.81
2035.00    0.133   241.22
2036.00    0.139   238.85
2037.00    0.145   236.68
2038.00    0.151   234.67
2039.00    0.157   232.82
2040.00    0.163   231.11
2041.00    0.169   229.52
2042.00    0.175   228.03
2043.00    0.181   226.65
2044.00    0.187   225.35
2045.00    0.193   224.12
2046.00    0.199   222.97
2047.00    0.204   221.89
2048.00    0.210   220.86
2049.00    0.215   219.88
2050.00    0.221   218.95
2051.00    0.226   218.07
2052.00    0.231   217.22
2053.00    0.236   216.41
2054.00    0.241   215.64
2055.00    0.246   214.89
2056.00    0.251   214.18
2057.00    0.255   213.49
2058.00    0.260   212.82
2059.00    0.264   212.18
2060.00    0.268   211.56
2061.00    0.273   210.96
2062.00    0.277   210.37
2063.00    0.281   209.80
2064.00    0.284   209.25
2065.00    0.288   208.71
2066.00    0.292   208.19
2067.00    0.295   207.68
2068.00    0.299   207.18
2069.00    0.302   206.69
2070.00    0.305   206.21
2071.00    0.308   205.74
2072.00    0.311   205.28
2073.00    0.314   204.83
2074.00    0.317   204.39
2075.00    0.319   203.95
2076.00    0.322   203.52
2077.00    0.324   203.10
2078.00    0.326   202.68
2079.00    0.329   202.27
2080.00    0.331   201.87
2081.00    0.332   201.46
2082.00    0.334   201.07
2083.00    0.336   200.68
2084.00    0.338   200.29
2085.00    0.339   199.90
2086.00    0.340   199.52
2087.00    0.342   199.14
2088.00    0.343   198.76
2089.00    0.344   198.39
2090.00    0.345   198.02
2091.00    0.345   197.65
2092.00    0.346   197.28
2093.00    0.347   196.91
2094.00    0.347   196.54
2095.00    0.348   196.18
2096.00    0.348   195.81
2097.00    0.348   195.45
2098.00    0.348   195.09
2099.00    0.348   194.72
2100.00    0.348   194.36
2101.00    0.347   193.99
2102.00    0.347   193.63
2103.00    0.346   193.26
2104.00    0.346   192.89
2105.00    0.345   192.52
2106.00    0.344   192.15
2107.00    0.343   191.78
2108.00    0.342   191.40
2109.00    0.341   191.02
2110.00    0.340   190.64
2111.00    0.338   190.26
2112.00    0.337   189.87
2113.00    0.335   189.48
2114.00    0.333   189.08
2115.00    0.331   188.68
2116.00    0.329   188.28
2117.00    0.327   187.87
2118.00    0.325   187.46
2119.00    0.323   187.04

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 18:54:04