Double Star Calculator - Orbit

Orbital Elements for A2413
WDS: A2413 WDS ID/Discoverer
P: 126.900 Orbital period (years)
a: 0.658 Semi-major axis (arcseconds)
i: 71.2 Inclination (degrees)
Ω: 184.8 Longitude of ascending node (degrees)
T: 1930.500 Epoch of periastron passage (year)
e: 0.458 Eccentricity
ω: 102.6 Longitude of periastron (degrees)
Start-Year: 1961.55 Year
End-Year: 2088.45 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A2413
Position: 025714.90+015315.3 Epoch-2000 right ascension and declination
WDS-ID: 02572+0153 WDS designation
Discoverer Code: A2413 Discover designation and components
ADS number: 2236 Aitken Double Star catalog
HD number: 18368 HD catalog number
Hipparcos number: 13773 Hipparcos catalog number
V1: 8.28 Magnitude of the primary
V2: 8.62 Magnitude of the secondary
Equinox: Equinox
Date: 2019 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: USN2021b Reference

Double Star Orbit for A2413



WDS 6th Orbit including measures of A2413

-- 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 A2413
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.663   173.12
--------------------------
1961.55    0.459    32.23
1962.55    0.449    33.93
1963.55    0.439    35.71
1964.55    0.429    37.58
1965.55    0.419    39.54
1966.55    0.408    41.59
1967.55    0.398    43.76
1968.55    0.388    46.04
1969.55    0.378    48.43
1970.55    0.368    50.96
1971.55    0.359    53.62
1972.55    0.350    56.42
1973.55    0.342    59.37
1974.55    0.334    62.45
1975.55    0.327    65.68
1976.55    0.320    69.04
1977.55    0.315    72.53
1978.55    0.310    76.13
1979.55    0.307    79.82
1980.55    0.304    83.59
1981.55    0.303    87.42
1982.55    0.302    91.26
1983.55    0.303    95.10
1984.55    0.305    98.91
1985.55    0.308   102.66
1986.55    0.312   106.33
1987.55    0.317   109.90
1988.55    0.323   113.35
1989.55    0.329   116.66
1990.55    0.337   119.84
1991.55    0.345   122.87
1992.55    0.354   125.75
1993.55    0.363   128.49
1994.55    0.373   131.09
1995.55    0.384   133.54
1996.55    0.394   135.87
1997.55    0.405   138.07
1998.55    0.417   140.16
1999.55    0.428   142.13
2000.55    0.440   144.00
2001.55    0.451   145.77
2002.55    0.463   147.45
2003.55    0.475   149.05
2004.55    0.487   150.57
2005.55    0.498   152.03
2006.55    0.510   153.41
2007.55    0.521   154.74
2008.55    0.532   156.00
2009.55    0.543   157.22
2010.55    0.554   158.39
2011.55    0.564   159.52
2012.55    0.574   160.60
2013.55    0.584   161.65
2014.55    0.593   162.67
2015.55    0.602   163.65
2016.55    0.611   164.61
2017.55    0.619   165.54
2018.55    0.626   166.45
2019.55    0.633   167.34
2020.55    0.639   168.21
2021.55    0.645   169.06
2022.55    0.650   169.90
2023.55    0.654   170.73
2024.55    0.658   171.55
2025.55    0.661   172.35
2026.55    0.663   173.16
2027.55    0.664   173.96
2028.55    0.664   174.76
2029.55    0.663   175.56
2030.55    0.661   176.36
2031.55    0.658   177.17
2032.55    0.654   177.98
2033.55    0.648   178.81
2034.55    0.642   179.66
2035.55    0.634   180.52
2036.55    0.624   181.41
2037.55    0.613   182.33
2038.55    0.600   183.29
2039.55    0.585   184.29
2040.55    0.569   185.35
2041.55    0.551   186.47
2042.55    0.530   187.67
2043.55    0.508   188.98
2044.55    0.483   190.41
2045.55    0.456   192.01
2046.55    0.426   193.82
2047.55    0.394   195.91
2048.55    0.360   198.38
2049.55    0.324   201.40
2050.55    0.286   205.20
2051.55    0.246   210.21
2052.55    0.206   217.15
2053.55    0.169   227.30
2054.55    0.137   242.73
2055.55    0.118   265.09
2056.55    0.119   290.90
2057.55    0.141   312.30
2058.55    0.173   326.84
2059.55    0.211   336.46
2060.55    0.250   343.13
2061.55    0.288   348.02
2062.55    0.323   351.79
2063.55    0.356   354.84
2064.55    0.386   357.40
2065.55    0.413   359.61
2066.55    0.436     1.56
2067.55    0.457     3.32
2068.55    0.474     4.94
2069.55    0.489     6.46
2070.55    0.501     7.89
2071.55    0.511     9.27
2072.55    0.519    10.59
2073.55    0.524    11.89
2074.55    0.528    13.16
2075.55    0.530    14.41
2076.55    0.531    15.66
2077.55    0.530    16.91
2078.55    0.528    18.17
2079.55    0.524    19.44
2080.55    0.520    20.73
2081.55    0.515    22.05
2082.55    0.509    23.39
2083.55    0.502    24.77
2084.55    0.494    26.19
2085.55    0.486    27.66
2086.55    0.477    29.18
2087.55    0.468    30.75






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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 15:06:11



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