Double Star Calculator - Orbit

Orbital Elements for HDS2745
WDS: HDS2745 WDS ID/Discoverer
P: 161.700 Orbital period (years)
a: 0.893 Semi-major axis (arcseconds)
i: 145.9 Inclination (degrees)
Ω: 18.1 Longitude of ascending node (degrees)
T: 2124.630 Epoch of periastron passage (year)
e: 0.549 Eccentricity
ω: 209.7 Longitude of periastron (degrees)
Start-Year: 1944.15 Year
End-Year: 2105.85 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS2745
Position: 192316.46-063507.3 Epoch-2000 right ascension and declination
WDS-ID: 19233-0635 WDS designation
Discoverer Code: HDS2745 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 182085 HD catalog number
Hipparcos number: 95299 Hipparcos catalog number
V1: 9.85 Magnitude of the primary
V2: 13.19 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hor2021b Reference

Double Star Orbit for HDS2745



WDS 6th Orbit including measures of HDS2745

-- 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 HDS2745
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.321     4.75
--------------------------
1944.15    0.619   272.25
1945.15    0.604   268.96
1946.15    0.589   265.50
1947.15    0.574   261.87
1948.15    0.560   258.05
1949.15    0.547   254.04
1950.15    0.533   249.82
1951.15    0.520   245.39
1952.15    0.508   240.74
1953.15    0.496   235.86
1954.15    0.484   230.74
1955.15    0.472   225.36
1956.15    0.461   219.72
1957.15    0.450   213.80
1958.15    0.439   207.57
1959.15    0.427   201.01
1960.15    0.416   194.10
1961.15    0.405   186.80
1962.15    0.394   179.10
1963.15    0.385   171.00
1964.15    0.377   162.53
1965.15    0.372   153.77
1966.15    0.370   144.82
1967.15    0.372   135.87
1968.15    0.377   127.10
1969.15    0.387   118.67
1970.15    0.401   110.73
1971.15    0.417   103.38
1972.15    0.437    96.63
1973.15    0.459    90.51
1974.15    0.483    84.96
1975.15    0.508    79.94
1976.15    0.533    75.40
1977.15    0.560    71.28
1978.15    0.586    67.54
1979.15    0.613    64.12
1980.15    0.640    60.99
1981.15    0.666    58.10
1982.15    0.692    55.44
1983.15    0.718    52.97
1984.15    0.743    50.66
1985.15    0.768    48.51
1986.15    0.792    46.49
1987.15    0.816    44.60
1988.15    0.839    42.80
1989.15    0.862    41.10
1990.15    0.884    39.49
1991.15    0.905    37.95
1992.15    0.926    36.49
1993.15    0.946    35.09
1994.15    0.966    33.74
1995.15    0.985    32.45
1996.15    1.003    31.21
1997.15    1.021    30.01
1998.15    1.039    28.85
1999.15    1.055    27.73
2000.15    1.071    26.64
2001.15    1.087    25.59
2002.15    1.102    24.56
2003.15    1.117    23.56
2004.15    1.131    22.59
2005.15    1.144    21.64
2006.15    1.157    20.71
2007.15    1.170    19.81
2008.15    1.182    18.92
2009.15    1.193    18.05
2010.15    1.204    17.19
2011.15    1.215    16.35
2012.15    1.225    15.53
2013.15    1.235    14.71
2014.15    1.244    13.91
2015.15    1.252    13.12
2016.15    1.261    12.35
2017.15    1.268    11.58
2018.15    1.276    10.82
2019.15    1.283    10.07
2020.15    1.289     9.32
2021.15    1.295     8.59
2022.15    1.301     7.86
2023.15    1.306     7.14
2024.15    1.311     6.42
2025.15    1.315     5.71
2026.15    1.320     5.00
2027.15    1.323     4.29
2028.15    1.326     3.59
2029.15    1.329     2.90
2030.15    1.332     2.20
2031.15    1.334     1.51
2032.15    1.336     0.82
2033.15    1.337     0.13
2034.15    1.338   359.45
2035.15    1.339   358.76
2036.15    1.339   358.07
2037.15    1.339   357.39
2038.15    1.338   356.70
2039.15    1.337   356.02
2040.15    1.336   355.33
2041.15    1.335   354.64
2042.15    1.333   353.95
2043.15    1.330   353.26
2044.15    1.328   352.56
2045.15    1.325   351.86
2046.15    1.322   351.16
2047.15    1.318   350.45
2048.15    1.314   349.75
2049.15    1.310   349.03
2050.15    1.305   348.31
2051.15    1.300   347.59
2052.15    1.295   346.86
2053.15    1.289   346.12
2054.15    1.283   345.38
2055.15    1.277   344.63
2056.15    1.271   343.87
2057.15    1.264   343.11
2058.15    1.256   342.33
2059.15    1.249   341.55
2060.15    1.241   340.76
2061.15    1.233   339.96
2062.15    1.224   339.14
2063.15    1.216   338.32
2064.15    1.207   337.48
2065.15    1.197   336.63
2066.15    1.188   335.76
2067.15    1.178   334.89
2068.15    1.167   333.99
2069.15    1.157   333.08
2070.15    1.146   332.15
2071.15    1.135   331.21
2072.15    1.123   330.25
2073.15    1.112   329.26
2074.15    1.100   328.26
2075.15    1.087   327.23
2076.15    1.075   326.18
2077.15    1.062   325.10
2078.15    1.049   324.00
2079.15    1.035   322.87
2080.15    1.022   321.70
2081.15    1.008   320.51
2082.15    0.994   319.28
2083.15    0.980   318.02
2084.15    0.965   316.72
2085.15    0.950   315.38
2086.15    0.935   314.00
2087.15    0.920   312.57
2088.15    0.905   311.09
2089.15    0.889   309.57
2090.15    0.873   307.98
2091.15    0.857   306.34
2092.15    0.841   304.64
2093.15    0.825   302.87
2094.15    0.809   301.03
2095.15    0.793   299.11
2096.15    0.776   297.11
2097.15    0.760   295.03
2098.15    0.743   292.85
2099.15    0.727   290.58
2100.15    0.710   288.20
2101.15    0.694   285.70
2102.15    0.678   283.09
2103.15    0.662   280.35
2104.15    0.646   277.47
2105.15    0.630   274.45






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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 18:03:42



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