Double Star Calculator - Orbit

Orbital Elements for B737
WDS: B737 WDS ID/Discoverer
P: 190.100 Orbital period (years)
a: 0.23 Semi-major axis (arcseconds)
i: 109.2 Inclination (degrees)
Ω: 79.9 Longitude of ascending node (degrees)
T: 1972.800 Epoch of periastron passage (year)
e: 0.453 Eccentricity
ω: 137.4 Longitude of periastron (degrees)
Start-Year: 1929.95 Year
End-Year: 2120.05 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for B737
Position: 074332.17-271045.2 Epoch-2000 right ascension and declination
WDS-ID: 07435-2711 WDS designation
Discoverer Code: B737 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 62556 HD catalog number
Hipparcos number: 37646 Hipparcos catalog number
V1: 8.53 Magnitude of the primary
V2: 9.01 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 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: Tok2018b Reference

Double Star Orbit for B737



WDS 6th Orbit including measures of B737

-- 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 B737
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.107   139.75
--------------------------
1929.95    0.257    77.60
1930.95    0.254    77.15
1931.95    0.250    76.69
1932.95    0.246    76.21
1933.95    0.241    75.71
1934.95    0.237    75.20
1935.95    0.232    74.67
1936.95    0.228    74.11
1937.95    0.223    73.53
1938.95    0.217    72.92
1939.95    0.212    72.28
1940.95    0.206    71.61
1941.95    0.200    70.90
1942.95    0.194    70.15
1943.95    0.188    69.34
1944.95    0.181    68.48
1945.95    0.175    67.55
1946.95    0.168    66.55
1947.95    0.160    65.45
1948.95    0.153    64.26
1949.95    0.145    62.94
1950.95    0.138    61.47
1951.95    0.130    59.82
1952.95    0.121    57.95
1953.95    0.113    55.81
1954.95    0.105    53.33
1955.95    0.096    50.41
1956.95    0.088    46.93
1957.95    0.079    42.72
1958.95    0.071    37.54
1959.95    0.064    31.09
1960.95    0.057    23.01
1961.95    0.051    12.96
1962.95    0.048     0.88
1963.95    0.046   347.31
1964.95    0.047   333.46
1965.95    0.050   320.71
1966.95    0.055   309.85
1967.95    0.061   301.01
1968.95    0.068   293.90
1969.95    0.075   288.17
1970.95    0.083   283.48
1971.95    0.091   279.57
1972.95    0.098   276.26
1973.95    0.105   273.40
1974.95    0.111   270.87
1975.95    0.117   268.62
1976.95    0.122   266.57
1977.95    0.127   264.68
1978.95    0.131   262.92
1979.95    0.135   261.26
1980.95    0.137   259.68
1981.95    0.140   258.15
1982.95    0.141   256.66
1983.95    0.142   255.20
1984.95    0.143   253.76
1985.95    0.143   252.33
1986.95    0.143   250.89
1987.95    0.142   249.45
1988.95    0.141   247.98
1989.95    0.140   246.49
1990.95    0.138   244.96
1991.95    0.136   243.40
1992.95    0.134   241.78
1993.95    0.131   240.11
1994.95    0.129   238.37
1995.95    0.126   236.55
1996.95    0.123   234.66
1997.95    0.120   232.67
1998.95    0.117   230.59
1999.95    0.114   228.40
2000.95    0.111   226.08
2001.95    0.108   223.65
2002.95    0.105   221.07
2003.95    0.103   218.35
2004.95    0.100   215.49
2005.95    0.097   212.46
2006.95    0.095   209.28
2007.95    0.093   205.95
2008.95    0.091   202.46
2009.95    0.089   198.83
2010.95    0.088   195.08
2011.95    0.087   191.22
2012.95    0.086   187.27
2013.95    0.086   183.27
2014.95    0.085   179.25
2015.95    0.086   175.24
2016.95    0.086   171.27
2017.95    0.087   167.38
2018.95    0.089   163.59
2019.95    0.090   159.92
2020.95    0.092   156.39
2021.95    0.094   153.02
2022.95    0.097   149.81
2023.95    0.100   146.77
2024.95    0.102   143.89
2025.95    0.106   141.18
2026.95    0.109   138.62
2027.95    0.112   136.21
2028.95    0.116   133.95
2029.95    0.119   131.82
2030.95    0.123   129.82
2031.95    0.127   127.94
2032.95    0.131   126.16
2033.95    0.135   124.49
2034.95    0.139   122.92
2035.95    0.143   121.43
2036.95    0.147   120.02
2037.95    0.151   118.69
2038.95    0.155   117.43
2039.95    0.159   116.23
2040.95    0.163   115.09
2041.95    0.167   114.01
2042.95    0.171   112.98
2043.95    0.175   111.99
2044.95    0.179   111.05
2045.95    0.183   110.15
2046.95    0.187   109.29
2047.95    0.190   108.46
2048.95    0.194   107.67
2049.95    0.198   106.91
2050.95    0.202   106.17
2051.95    0.206   105.46
2052.95    0.209   104.78
2053.95    0.213   104.12
2054.95    0.216   103.48
2055.95    0.220   102.87
2056.95    0.223   102.27
2057.95    0.227   101.69
2058.95    0.230   101.13
2059.95    0.233   100.58
2060.95    0.237   100.05
2061.95    0.240    99.53
2062.95    0.243    99.03
2063.95    0.246    98.54
2064.95    0.249    98.06
2065.95    0.252    97.59
2066.95    0.255    97.13
2067.95    0.257    96.68
2068.95    0.260    96.24
2069.95    0.262    95.81
2070.95    0.265    95.39
2071.95    0.267    94.97
2072.95    0.270    94.57
2073.95    0.272    94.17
2074.95    0.274    93.77
2075.95    0.276    93.39
2076.95    0.278    93.00
2077.95    0.280    92.63
2078.95    0.282    92.25
2079.95    0.284    91.89
2080.95    0.285    91.52
2081.95    0.287    91.17
2082.95    0.288    90.81
2083.95    0.290    90.46
2084.95    0.291    90.11
2085.95    0.292    89.76
2086.95    0.293    89.42
2087.95    0.294    89.08
2088.95    0.295    88.74
2089.95    0.295    88.40
2090.95    0.296    88.07
2091.95    0.297    87.73
2092.95    0.297    87.40
2093.95    0.297    87.07
2094.95    0.297    86.73
2095.95    0.297    86.40
2096.95    0.297    86.07
2097.95    0.297    85.74
2098.95    0.297    85.40
2099.95    0.296    85.07
2100.95    0.296    84.73
2101.95    0.295    84.40
2102.95    0.294    84.06
2103.95    0.293    83.72
2104.95    0.292    83.38
2105.95    0.291    83.03
2106.95    0.290    82.68
2107.95    0.288    82.33
2108.95    0.286    81.97
2109.95    0.285    81.61
2110.95    0.283    81.25
2111.95    0.280    80.88
2112.95    0.278    80.50
2113.95    0.276    80.12
2114.95    0.273    79.73
2115.95    0.270    79.33
2116.95    0.267    78.92
2117.95    0.264    78.51
2118.95    0.261    78.08
2119.95    0.258    77.65






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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 16:00:37



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