Double Star Calculator - Orbit

Orbital Elements for HU907
WDS: HU907 WDS ID/Discoverer
P: 173.200 Orbital period (years)
a: 0.259 Semi-major axis (arcseconds)
i: 47.1 Inclination (degrees)
Ω: 146.5 Longitude of ascending node (degrees)
T: 2038.660 Epoch of periastron passage (year)
e: 0.474 Eccentricity
ω: 238.8 Longitude of periastron (degrees)
Start-Year: 1938.4 Year
End-Year: 2111.6 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU907
Position: 150010.00+212848.8 Epoch-2000 right ascension and declination
WDS-ID: 15002+2129 WDS designation
Discoverer Code: HU907 Discover designation and components
ADS number: 9473 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 73411 Hipparcos catalog number
V1: 10.19 Magnitude of the primary
V2: 10.20 Magnitude of the secondary
Equinox: Equinox
Date: 2022 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: Lin2022b Reference

Double Star Orbit for HU907



WDS 6th Orbit including measures of HU907

-- 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 HU907
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.170   319.91
--------------------------
1938.40    0.316   182.77
1939.40    0.315   183.61
1940.40    0.314   184.46
1941.40    0.313   185.31
1942.40    0.312   186.16
1943.40    0.311   187.03
1944.40    0.309   187.90
1945.40    0.308   188.77
1946.40    0.306   189.66
1947.40    0.305   190.55
1948.40    0.304   191.46
1949.40    0.302   192.37
1950.40    0.300   193.29
1951.40    0.299   194.22
1952.40    0.297   195.16
1953.40    0.295   196.12
1954.40    0.293   197.08
1955.40    0.292   198.06
1956.40    0.290   199.05
1957.40    0.288   200.05
1958.40    0.286   201.06
1959.40    0.284   202.09
1960.40    0.282   203.14
1961.40    0.280   204.20
1962.40    0.278   205.27
1963.40    0.276   206.36
1964.40    0.274   207.46
1965.40    0.272   208.59
1966.40    0.270   209.73
1967.40    0.268   210.88
1968.40    0.266   212.06
1969.40    0.263   213.25
1970.40    0.261   214.47
1971.40    0.259   215.70
1972.40    0.257   216.95
1973.40    0.255   218.23
1974.40    0.253   219.52
1975.40    0.251   220.84
1976.40    0.249   222.18
1977.40    0.247   223.54
1978.40    0.245   224.92
1979.40    0.243   226.33
1980.40    0.241   227.76
1981.40    0.239   229.21
1982.40    0.237   230.69
1983.40    0.235   232.19
1984.40    0.233   233.71
1985.40    0.231   235.26
1986.40    0.230   236.83
1987.40    0.228   238.43
1988.40    0.226   240.06
1989.40    0.224   241.70
1990.40    0.223   243.38
1991.40    0.221   245.07
1992.40    0.220   246.79
1993.40    0.218   248.54
1994.40    0.217   250.30
1995.40    0.215   252.10
1996.40    0.214   253.91
1997.40    0.213   255.75
1998.40    0.211   257.60
1999.40    0.210   259.48
2000.40    0.209   261.39
2001.40    0.208   263.31
2002.40    0.207   265.25
2003.40    0.206   267.21
2004.40    0.205   269.20
2005.40    0.204   271.20
2006.40    0.203   273.22
2007.40    0.202   275.26
2008.40    0.201   277.32
2009.40    0.200   279.40
2010.40    0.199   281.50
2011.40    0.198   283.62
2012.40    0.197   285.77
2013.40    0.196   287.93
2014.40    0.195   290.12
2015.40    0.194   292.34
2016.40    0.192   294.58
2017.40    0.191   296.85
2018.40    0.189   299.17
2019.40    0.188   301.51
2020.40    0.186   303.91
2021.40    0.184   306.35
2022.40    0.182   308.85
2023.40    0.179   311.42
2024.40    0.176   314.06
2025.40    0.173   316.79
2026.40    0.170   319.62
2027.40    0.166   322.58
2028.40    0.162   325.67
2029.40    0.158   328.93
2030.40    0.153   332.38
2031.40    0.148   336.07
2032.40    0.142   340.03
2033.40    0.137   344.32
2034.40    0.131   348.99
2035.40    0.125   354.12
2036.40    0.119   359.78
2037.40    0.113     6.03
2038.40    0.107    12.94
2039.40    0.103    20.51
2040.40    0.099    28.71
2041.40    0.097    37.40
2042.40    0.096    46.37
2043.40    0.097    55.34
2044.40    0.099    64.03
2045.40    0.103    72.20
2046.40    0.108    79.71
2047.40    0.114    86.49
2048.40    0.121    92.56
2049.40    0.128    97.97
2050.40    0.136   102.78
2051.40    0.143   107.08
2052.40    0.151   110.92
2053.40    0.159   114.39
2054.40    0.167   117.53
2055.40    0.175   120.39
2056.40    0.182   123.01
2057.40    0.190   125.42
2058.40    0.197   127.65
2059.40    0.204   129.73
2060.40    0.211   131.67
2061.40    0.217   133.49
2062.40    0.224   135.21
2063.40    0.230   136.84
2064.40    0.236   138.38
2065.40    0.241   139.85
2066.40    0.246   141.26
2067.40    0.252   142.60
2068.40    0.256   143.90
2069.40    0.261   145.15
2070.40    0.266   146.35
2071.40    0.270   147.52
2072.40    0.274   148.65
2073.40    0.278   149.75
2074.40    0.281   150.82
2075.40    0.285   151.86
2076.40    0.288   152.88
2077.40    0.291   153.87
2078.40    0.294   154.85
2079.40    0.297   155.80
2080.40    0.299   156.74
2081.40    0.302   157.67
2082.40    0.304   158.58
2083.40    0.306   159.48
2084.40    0.308   160.36
2085.40    0.310   161.24
2086.40    0.312   162.10
2087.40    0.313   162.96
2088.40    0.315   163.81
2089.40    0.316   164.65
2090.40    0.317   165.48
2091.40    0.318   166.31
2092.40    0.319   167.14
2093.40    0.320   167.96
2094.40    0.320   168.77
2095.40    0.321   169.59
2096.40    0.321   170.40
2097.40    0.322   171.21
2098.40    0.322   172.01
2099.40    0.322   172.82
2100.40    0.322   173.63
2101.40    0.322   174.43
2102.40    0.322   175.24
2103.40    0.321   176.05
2104.40    0.321   176.86
2105.40    0.321   177.67
2106.40    0.320   178.48
2107.40    0.320   179.30
2108.40    0.319   180.12
2109.40    0.318   180.95
2110.40    0.317   181.77
2111.40    0.316   182.61






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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 17:11:43



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