Double Star Calculator - Orbit

Orbital Elements for A2625
WDS: A2625 WDS ID/Discoverer
P: 178.200 Orbital period (years)
a: 0.177 Semi-major axis (arcseconds)
i: 51.0 Inclination (degrees)
Ω: 157.8 Longitude of ascending node (degrees)
T: 2022.160 Epoch of periastron passage (year)
e: 0.664 Eccentricity
ω: 42.5 Longitude of periastron (degrees)
Start-Year: 1935.9 Year
End-Year: 2114.1 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A2625
Position: 045704.79-133802.6 Epoch-2000 right ascension and declination
WDS-ID: 04571-1338 WDS designation
Discoverer Code: A2625 Discover designation and components
ADS number: 3559 Aitken Double Star catalog
HD number: 31656 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.9 Magnitude of the primary
V2: 9.9 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 A2625



WDS 6th Orbit including measures of A2625

-- 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 A2625
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.044   254.60
--------------------------
1935.90    0.248     9.13
1936.90    0.246     9.62
1937.90    0.245    10.11
1938.90    0.244    10.61
1939.90    0.243    11.11
1940.90    0.241    11.62
1941.90    0.240    12.14
1942.90    0.239    12.66
1943.90    0.237    13.18
1944.90    0.236    13.72
1945.90    0.234    14.26
1946.90    0.232    14.80
1947.90    0.231    15.36
1948.90    0.229    15.92
1949.90    0.227    16.50
1950.90    0.225    17.08
1951.90    0.224    17.67
1952.90    0.222    18.27
1953.90    0.220    18.88
1954.90    0.218    19.51
1955.90    0.216    20.14
1956.90    0.214    20.79
1957.90    0.212    21.44
1958.90    0.209    22.12
1959.90    0.207    22.80
1960.90    0.205    23.50
1961.90    0.203    24.22
1962.90    0.201    24.95
1963.90    0.198    25.70
1964.90    0.196    26.47
1965.90    0.194    27.25
1966.90    0.191    28.06
1967.90    0.189    28.88
1968.90    0.186    29.73
1969.90    0.184    30.60
1970.90    0.181    31.50
1971.90    0.178    32.42
1972.90    0.176    33.37
1973.90    0.173    34.35
1974.90    0.171    35.35
1975.90    0.168    36.39
1976.90    0.165    37.47
1977.90    0.162    38.58
1978.90    0.160    39.72
1979.90    0.157    40.91
1980.90    0.154    42.14
1981.90    0.151    43.42
1982.90    0.149    44.74
1983.90    0.146    46.12
1984.90    0.143    47.55
1985.90    0.140    49.03
1986.90    0.137    50.58
1987.90    0.135    52.19
1988.90    0.132    53.87
1989.90    0.129    55.63
1990.90    0.126    57.46
1991.90    0.123    59.37
1992.90    0.121    61.37
1993.90    0.118    63.46
1994.90    0.115    65.65
1995.90    0.113    67.94
1996.90    0.110    70.33
1997.90    0.108    72.84
1998.90    0.105    75.46
1999.90    0.103    78.21
2000.90    0.101    81.08
2001.90    0.099    84.07
2002.90    0.097    87.20
2003.90    0.095    90.47
2004.90    0.093    93.87
2005.90    0.091    97.41
2006.90    0.089   101.09
2007.90    0.088   104.91
2008.90    0.086   108.86
2009.90    0.085   112.96
2010.90    0.083   117.20
2011.90    0.082   121.58
2012.90    0.080   126.13
2013.90    0.079   130.86
2014.90    0.077   135.79
2015.90    0.075   140.97
2016.90    0.072   146.48
2017.90    0.069   152.42
2018.90    0.066   158.93
2019.90    0.062   166.26
2020.90    0.057   174.74
2021.90    0.052   184.82
2022.90    0.047   197.02
2023.90    0.043   211.63
2024.90    0.042   228.19
2025.90    0.043   245.10
2026.90    0.046   260.45
2027.90    0.051   273.18
2028.90    0.058   283.28
2029.90    0.065   291.24
2030.90    0.072   297.57
2031.90    0.080   302.71
2032.90    0.088   306.95
2033.90    0.095   310.52
2034.90    0.102   313.58
2035.90    0.109   316.24
2036.90    0.116   318.58
2037.90    0.123   320.67
2038.90    0.129   322.55
2039.90    0.135   324.25
2040.90    0.141   325.82
2041.90    0.147   327.25
2042.90    0.152   328.59
2043.90    0.157   329.83
2044.90    0.162   330.99
2045.90    0.167   332.09
2046.90    0.172   333.12
2047.90    0.177   334.10
2048.90    0.181   335.04
2049.90    0.185   335.93
2050.90    0.189   336.78
2051.90    0.193   337.59
2052.90    0.197   338.38
2053.90    0.200   339.14
2054.90    0.204   339.87
2055.90    0.207   340.57
2056.90    0.210   341.26
2057.90    0.213   341.92
2058.90    0.216   342.57
2059.90    0.219   343.20
2060.90    0.221   343.82
2061.90    0.224   344.42
2062.90    0.227   345.00
2063.90    0.229   345.58
2064.90    0.231   346.14
2065.90    0.233   346.69
2066.90    0.235   347.23
2067.90    0.237   347.77
2068.90    0.239   348.29
2069.90    0.241   348.81
2070.90    0.243   349.32
2071.90    0.244   349.82
2072.90    0.246   350.32
2073.90    0.247   350.81
2074.90    0.248   351.29
2075.90    0.250   351.77
2076.90    0.251   352.25
2077.90    0.252   352.72
2078.90    0.253   353.19
2079.90    0.254   353.65
2080.90    0.255   354.11
2081.90    0.256   354.57
2082.90    0.256   355.02
2083.90    0.257   355.47
2084.90    0.258   355.92
2085.90    0.258   356.37
2086.90    0.259   356.82
2087.90    0.259   357.26
2088.90    0.259   357.71
2089.90    0.259   358.15
2090.90    0.260   358.59
2091.90    0.260   359.03
2092.90    0.260   359.48
2093.90    0.260   359.92
2094.90    0.260     0.36
2095.90    0.260     0.80
2096.90    0.259     1.24
2097.90    0.259     1.69
2098.90    0.259     2.13
2099.90    0.259     2.57
2100.90    0.258     3.02
2101.90    0.258     3.47
2102.90    0.257     3.92
2103.90    0.257     4.37
2104.90    0.256     4.82
2105.90    0.255     5.28
2106.90    0.255     5.74
2107.90    0.254     6.20
2108.90    0.253     6.66
2109.90    0.252     7.13
2110.90    0.251     7.60
2111.90    0.250     8.07
2112.90    0.249     8.55
2113.90    0.248     9.04






Disclaimer
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 15:32:09



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