Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 16:26:55

Orbital Elements for A655
WDS: A655 WDS ID/Discoverer
P: 153.090 Orbital period (years)
a: 0.338 Semi-major axis (arcseconds)
i: 53.1 Inclination (degrees)
Ω: 157.5 Longitude of ascending node (degrees)
T: 2040.770 Epoch of periastron passage (year)
e: 0.185 Eccentricity
ω: 290.5 Longitude of periastron (degrees)
Start-Year: 1949.0 Year
End-Year: 2101.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A655
Position: 011114.56+411317.3 Epoch-2000 right ascension and declination
WDS-ID: 01112+4113 WDS designation
Discoverer Code: A655 Discover designation and components
ADS number: 974 Aitken Double Star catalog
HD number: 7018 HD catalog number
Hipparcos number: 5553 Hipparcos catalog number
V1: 8.35 Magnitude of the primary
V2: 9.36 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1995 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A655



WDS 6th Orbit including measures of A655

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of A655
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.216     21.3
-------------------------
1949.0     0.237    239.3
1950.0     0.237    242.2
1951.0     0.237    245.0
1952.0     0.237    247.8
1953.0     0.238    250.6
1954.0     0.239    253.4
1955.0     0.240    256.2
1956.0     0.242    258.9
1957.0     0.244    261.6
1958.0     0.246    264.2
1959.0     0.249    266.8
1960.0     0.251    269.4
1961.0     0.254    271.8
1962.0     0.258    274.2
1963.0     0.261    276.6
1964.0     0.265    278.9
1965.0     0.268    281.1
1966.0     0.272    283.3
1967.0     0.276    285.4
1968.0     0.280    287.5
1969.0     0.284    289.5
1970.0     0.288    291.4
1971.0     0.292    293.3
1972.0     0.296    295.1
1973.0     0.300    296.9
1974.0     0.305    298.6
1975.0     0.309    300.3
1976.0     0.313    302.0
1977.0     0.317    303.6
1978.0     0.320    305.1
1979.0     0.324    306.7
1980.0     0.328    308.1
1981.0     0.331    309.6
1982.0     0.334    311.0
1983.0     0.338    312.4
1984.0     0.340    313.8
1985.0     0.343    315.2
1986.0     0.346    316.5
1987.0     0.348    317.8
1988.0     0.350    319.1
1989.0     0.352    320.4
1990.0     0.354    321.7
1991.0     0.355    323.0
1992.0     0.356    324.2
1993.0     0.357    325.5
1994.0     0.358    326.7
1995.0     0.358    327.9
1996.0     0.358    329.2
1997.0     0.357    330.4
1998.0     0.357    331.7
1999.0     0.356    332.9
2000.0     0.354    334.2
2001.0     0.353    335.4
2002.0     0.350    336.7
2003.0     0.348    338.0
2004.0     0.345    339.3
2005.0     0.342    340.7
2006.0     0.339    342.0
2007.0     0.335    343.4
2008.0     0.331    344.9
2009.0     0.326    346.3
2010.0     0.321    347.9
2011.0     0.316    349.4
2012.0     0.310    351.0
2013.0     0.304    352.7
2014.0     0.298    354.5
2015.0     0.292    356.3
2016.0     0.285    358.2
2017.0     0.278      0.2
2018.0     0.270      2.3
2019.0     0.263      4.5
2020.0     0.255      6.9
2021.0     0.247      9.4
2022.0     0.239     12.1
2023.0     0.231     15.0
2024.0     0.223     18.0
2025.0     0.216     21.3
2026.0     0.208     24.9
2027.0     0.201     28.6
2028.0     0.194     32.7
2029.0     0.188     37.1
2030.0     0.182     41.7
2031.0     0.177     46.6
2032.0     0.173     51.8
2033.0     0.170     57.2
2034.0     0.168     62.8
2035.0     0.167     68.4
2036.0     0.167     74.1
2037.0     0.169     79.7
2038.0     0.171     85.2
2039.0     0.174     90.6
2040.0     0.179     95.7
2041.0     0.184    100.5
2042.0     0.190    105.1
2043.0     0.196    109.3
2044.0     0.203    113.3
2045.0     0.210    117.1
2046.0     0.217    120.6
2047.0     0.224    123.8
2048.0     0.231    126.9
2049.0     0.239    129.8
2050.0     0.246    132.5
2051.0     0.253    135.0
2052.0     0.259    137.4
2053.0     0.266    139.7
2054.0     0.272    141.9
2055.0     0.277    144.0
2056.0     0.283    146.1
2057.0     0.288    148.0
2058.0     0.292    149.9
2059.0     0.296    151.7
2060.0     0.300    153.5
2061.0     0.303    155.3
2062.0     0.306    157.0
2063.0     0.308    158.7
2064.0     0.310    160.3
2065.0     0.312    161.9
2066.0     0.313    163.6
2067.0     0.313    165.2
2068.0     0.314    166.8
2069.0     0.314    168.4
2070.0     0.313    170.0
2071.0     0.313    171.6
2072.0     0.312    173.3
2073.0     0.310    174.9
2074.0     0.309    176.6
2075.0     0.307    178.2
2076.0     0.305    179.9
2077.0     0.302    181.7
2078.0     0.300    183.4
2079.0     0.297    185.2
2080.0     0.294    187.0
2081.0     0.291    188.9
2082.0     0.288    190.7
2083.0     0.285    192.7
2084.0     0.281    194.7
2085.0     0.278    196.7
2086.0     0.274    198.8
2087.0     0.271    200.9
2088.0     0.268    203.1
2089.0     0.264    205.3
2090.0     0.261    207.6
2091.0     0.258    210.0
2092.0     0.255    212.4
2093.0     0.252    214.8
2094.0     0.250    217.4
2095.0     0.247    219.9
2096.0     0.245    222.6
2097.0     0.243    225.2
2098.0     0.241    227.9
2099.0     0.240    230.7
2100.0     0.238    233.5



 

Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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