Double Star Calculator - Orbit

Orbital Elements for HU1213
WDS: HU1213 WDS ID/Discoverer
P: 147.400 Orbital period (years)
a: 0.155 Semi-major axis (arcseconds)
i: 131.9 Inclination (degrees)
Ω: 45.9 Longitude of ascending node (degrees)
T: 2019.240 Epoch of periastron passage (year)
e: 0.895 Eccentricity
ω: 96.3 Longitude of periastron (degrees)
Start-Year: 1951.3 Year
End-Year: 2098.7 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for HU1213
Position: 015157.60+132538.0 Epoch-2000 right ascension and declination
WDS-ID: 01520+1326 WDS designation
Discoverer Code: HU1213 Discover designation and components
ADS number: 1482 Aitken Double Star catalog
HD number: 11364 HD catalog number
Hipparcos number: 8703 Hipparcos catalog number
V1: 9.46 Magnitude of the primary
V2: 9.87 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 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: Tok2021c Reference

Double Star Orbit for HU1213



WDS 6th Orbit including measures of HU1213

-- 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 HU1213
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.074   182.47
--------------------------
1951.30    0.198   123.94
1952.30    0.198   123.49
1953.30    0.197   123.04
1954.30    0.197   122.60
1955.30    0.197   122.15
1956.30    0.197   121.70
1957.30    0.196   121.24
1958.30    0.196   120.79
1959.30    0.196   120.33
1960.30    0.195   119.88
1961.30    0.195   119.42
1962.30    0.194   118.95
1963.30    0.194   118.49
1964.30    0.193   118.02
1965.30    0.192   117.55
1966.30    0.191   117.07
1967.30    0.191   116.59
1968.30    0.190   116.11
1969.30    0.189   115.63
1970.30    0.188   115.13
1971.30    0.187   114.64
1972.30    0.186   114.14
1973.30    0.185   113.63
1974.30    0.184   113.11
1975.30    0.183   112.59
1976.30    0.182   112.07
1977.30    0.180   111.53
1978.30    0.179   110.99
1979.30    0.178   110.44
1980.30    0.176   109.88
1981.30    0.175   109.31
1982.30    0.173   108.73
1983.30    0.171   108.14
1984.30    0.170   107.54
1985.30    0.168   106.93
1986.30    0.166   106.30
1987.30    0.164   105.66
1988.30    0.162   105.00
1989.30    0.160   104.33
1990.30    0.158   103.64
1991.30    0.156   102.93
1992.30    0.153   102.20
1993.30    0.151   101.44
1994.30    0.149   100.66
1995.30    0.146    99.86
1996.30    0.143    99.02
1997.30    0.141    98.15
1998.30    0.138    97.25
1999.30    0.135    96.30
2000.30    0.131    95.32
2001.30    0.128    94.28
2002.30    0.125    93.19
2003.30    0.121    92.03
2004.30    0.117    90.81
2005.30    0.114    89.50
2006.30    0.109    88.09
2007.30    0.105    86.57
2008.30    0.101    84.92
2009.30    0.096    83.11
2010.30    0.091    81.09
2011.30    0.085    78.82
2012.30    0.079    76.22
2013.30    0.073    73.18
2014.30    0.065    69.50
2015.30    0.057    64.85
2016.30    0.048    58.53
2017.30    0.037    48.74
2018.30    0.023    28.12
2019.30    0.011   297.93
2020.30    0.025   231.15
2021.30    0.037   212.90
2022.30    0.047   202.93
2023.30    0.054   196.08
2024.30    0.061   190.86
2025.30    0.068   186.65
2026.30    0.073   183.11
2027.30    0.078   180.07
2028.30    0.083   177.40
2029.30    0.088   175.01
2030.30    0.092   172.87
2031.30    0.097   170.91
2032.30    0.101   169.11
2033.30    0.104   167.45
2034.30    0.108   165.90
2035.30    0.112   164.45
2036.30    0.115   163.09
2037.30    0.118   161.80
2038.30    0.121   160.59
2039.30    0.125   159.43
2040.30    0.127   158.33
2041.30    0.130   157.28
2042.30    0.133   156.27
2043.30    0.136   155.31
2044.30    0.138   154.38
2045.30    0.141   153.48
2046.30    0.143   152.61
2047.30    0.146   151.78
2048.30    0.148   150.97
2049.30    0.150   150.18
2050.30    0.152   149.42
2051.30    0.155   148.68
2052.30    0.157   147.95
2053.30    0.159   147.25
2054.30    0.160   146.56
2055.30    0.162   145.89
2056.30    0.164   145.23
2057.30    0.166   144.59
2058.30    0.168   143.96
2059.30    0.169   143.35
2060.30    0.171   142.74
2061.30    0.172   142.15
2062.30    0.174   141.56
2063.30    0.175   140.99
2064.30    0.177   140.43
2065.30    0.178   139.87
2066.30    0.179   139.32
2067.30    0.180   138.78
2068.30    0.182   138.25
2069.30    0.183   137.72
2070.30    0.184   137.20
2071.30    0.185   136.69
2072.30    0.186   136.18
2073.30    0.187   135.68
2074.30    0.188   135.18
2075.30    0.189   134.69
2076.30    0.190   134.20
2077.30    0.190   133.71
2078.30    0.191   133.23
2079.30    0.192   132.76
2080.30    0.193   132.29
2081.30    0.193   131.82
2082.30    0.194   131.35
2083.30    0.194   130.89
2084.30    0.195   130.42
2085.30    0.195   129.97
2086.30    0.196   129.51
2087.30    0.196   129.05
2088.30    0.197   128.60
2089.30    0.197   128.15
2090.30    0.197   127.70
2091.30    0.197   127.25
2092.30    0.198   126.80
2093.30    0.198   126.35
2094.30    0.198   125.90
2095.30    0.198   125.46
2096.30    0.198   125.01
2097.30    0.198   124.57
2098.30    0.198   124.12



 

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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 14:54:39


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