Double Star Calculator - Orbit

Orbital Elements for A349
WDS: A349 WDS ID/Discoverer
P: 135.690 Orbital period (years)
a: 0.435 Semi-major axis (arcseconds)
i: 165.1 Inclination (degrees)
Ω: 316.1 Longitude of ascending node (degrees)
T: 1951.280 Epoch of periastron passage (year)
e: 0.532 Eccentricity
ω: 8.5 Longitude of periastron (degrees)
Start-Year: 1957.155 Year
End-Year: 2092.845 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A349
Position: 164117.67+300636.2 Epoch-2000 right ascension and declination
WDS-ID: 16413+3006 WDS designation
Discoverer Code: A349 Discover designation and components
ADS number: 10158 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 81694 Hipparcos catalog number
V1: 10.66 Magnitude of the primary
V2: 10.91 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hrt2014b Reference

Double Star Orbit for A349



WDS 6th Orbit including measures of A349

-- 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 A349
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.659   121.00
--------------------------
1957.15    0.231   254.30
1958.15    0.241   246.94
1959.15    0.252   240.16
1960.15    0.263   233.95
1961.15    0.275   228.25
1962.15    0.287   223.03
1963.15    0.299   218.24
1964.15    0.312   213.83
1965.15    0.324   209.77
1966.15    0.337   206.00
1967.15    0.349   202.51
1968.15    0.361   199.25
1969.15    0.374   196.21
1970.15    0.386   193.36
1971.15    0.397   190.68
1972.15    0.409   188.16
1973.15    0.420   185.77
1974.15    0.432   183.50
1975.15    0.442   181.35
1976.15    0.453   179.30
1977.15    0.463   177.34
1978.15    0.473   175.47
1979.15    0.483   173.67
1980.15    0.493   171.95
1981.15    0.502   170.28
1982.15    0.511   168.68
1983.15    0.519   167.13
1984.15    0.528   165.63
1985.15    0.536   164.18
1986.15    0.544   162.77
1987.15    0.551   161.40
1988.15    0.559   160.07
1989.15    0.566   158.77
1990.15    0.573   157.50
1991.15    0.579   156.27
1992.15    0.586   155.06
1993.15    0.592   153.87
1994.15    0.598   152.71
1995.15    0.603   151.57
1996.15    0.608   150.45
1997.15    0.614   149.35
1998.15    0.618   148.27
1999.15    0.623   147.20
2000.15    0.627   146.15
2001.15    0.631   145.11
2002.15    0.635   144.09
2003.15    0.639   143.08
2004.15    0.642   142.07
2005.15    0.645   141.08
2006.15    0.648   140.10
2007.15    0.651   139.13
2008.15    0.654   138.16
2009.15    0.656   137.21
2010.15    0.658   136.25
2011.15    0.660   135.31
2012.15    0.661   134.37
2013.15    0.663   133.43
2014.15    0.664   132.49
2015.15    0.665   131.56
2016.15    0.665   130.63
2017.15    0.666   129.71
2018.15    0.666   128.78
2019.15    0.666   127.85
2020.15    0.666   126.93
2021.15    0.665   126.00
2022.15    0.665   125.07
2023.15    0.664   124.14
2024.15    0.663   123.21
2025.15    0.661   122.27
2026.15    0.660   121.33
2027.15    0.658   120.38
2028.15    0.656   119.43
2029.15    0.654   118.47
2030.15    0.651   117.50
2031.15    0.648   116.53
2032.15    0.646   115.55
2033.15    0.642   114.56
2034.15    0.639   113.56
2035.15    0.635   112.55
2036.15    0.632   111.52
2037.15    0.628   110.49
2038.15    0.623   109.44
2039.15    0.619   108.37
2040.15    0.614   107.29
2041.15    0.609   106.19
2042.15    0.604   105.08
2043.15    0.598   103.94
2044.15    0.593   102.78
2045.15    0.587   101.60
2046.15    0.581   100.39
2047.15    0.574    99.16
2048.15    0.567    97.90
2049.15    0.561    96.61
2050.15    0.553    95.28
2051.15    0.546    93.92
2052.15    0.538    92.53
2053.15    0.530    91.09
2054.15    0.522    89.60
2055.15    0.514    88.07
2056.15    0.505    86.49
2057.15    0.496    84.85
2058.15    0.487    83.15
2059.15    0.478    81.39
2060.15    0.468    79.55
2061.15    0.458    77.63
2062.15    0.448    75.63
2063.15    0.438    73.54
2064.15    0.427    71.34
2065.15    0.416    69.02
2066.15    0.405    66.59
2067.15    0.394    64.01
2068.15    0.382    61.28
2069.15    0.370    58.38
2070.15    0.359    55.28
2071.15    0.347    51.98
2072.15    0.335    48.44
2073.15    0.323    44.64
2074.15    0.310    40.53
2075.15    0.298    36.10
2076.15    0.287    31.30
2077.15    0.275    26.08
2078.15    0.264    20.41
2079.15    0.253    14.24
2080.15    0.243     7.54
2081.15    0.233     0.27
2082.15    0.225   352.43
2083.15    0.217   344.01
2084.15    0.211   335.06
2085.15    0.207   325.67
2086.15    0.204   315.94
2087.15    0.203   306.05
2088.15    0.204   296.15
2089.15    0.207   286.42
2090.15    0.212   277.04
2091.15    0.218   268.11
2092.15    0.225   259.74






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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 17:29:54



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