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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:03:28

Orbital Elements for B2009
WDS: B2009 WDS ID/Discoverer
P: 143.400 Orbital period (years)
a: 0.278 Semi-major axis (arcseconds)
i: 140.0 Inclination (degrees)
Ω: 113.5 Longitude of ascending node (degrees)
T: 1971.480 Epoch of periastron passage (year)
e: 0.239 Eccentricity
ω: 118.5 Longitude of periastron (degrees)
Start-Year: 1954.0 Year
End-Year: 2096.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B2009
Position: 111248.95-740139.7 Epoch-2000 right ascension and declination
WDS-ID: 11128-7402 WDS designation
Discoverer Code: B2009 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 97708 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.8 Magnitude of the primary
V2: 10.2 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for B2009



WDS 6th Orbit including measures of B2009

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


Ephemeris of B2009
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.253    205.0
-------------------------
1954.0     0.208     69.9
1955.0     0.202     66.5
1956.0     0.197     62.8
1957.0     0.192     59.0
1958.0     0.187     55.0
1959.0     0.182     50.7
1960.0     0.178     46.3
1961.0     0.174     41.6
1962.0     0.171     36.8
1963.0     0.169     31.8
1964.0     0.167     26.6
1965.0     0.166     21.4
1966.0     0.165     16.1
1967.0     0.165     10.8
1968.0     0.166      5.6
1969.0     0.168      0.4
1970.0     0.170    355.4
1971.0     0.173    350.5
1972.0     0.176    345.7
1973.0     0.180    341.2
1974.0     0.184    336.8
1975.0     0.188    332.7
1976.0     0.192    328.7
1977.0     0.197    324.9
1978.0     0.201    321.2
1979.0     0.206    317.7
1980.0     0.210    314.4
1981.0     0.214    311.2
1982.0     0.218    308.1
1983.0     0.222    305.1
1984.0     0.225    302.2
1985.0     0.229    299.4
1986.0     0.232    296.7
1987.0     0.235    294.1
1988.0     0.237    291.5
1989.0     0.240    288.9
1990.0     0.242    286.4
1991.0     0.243    284.0
1992.0     0.245    281.6
1993.0     0.246    279.2
1994.0     0.247    276.8
1995.0     0.248    274.5
1996.0     0.249    272.1
1997.0     0.250    269.8
1998.0     0.250    267.5
1999.0     0.250    265.2
2000.0     0.251    262.9
2001.0     0.251    260.6
2002.0     0.251    258.3
2003.0     0.250    256.0
2004.0     0.250    253.7
2005.0     0.250    251.4
2006.0     0.250    249.1
2007.0     0.250    246.8
2008.0     0.249    244.5
2009.0     0.249    242.1
2010.0     0.249    239.8
2011.0     0.249    237.5
2012.0     0.248    235.1
2013.0     0.248    232.8
2014.0     0.248    230.4
2015.0     0.248    228.1
2016.0     0.248    225.8
2017.0     0.249    223.4
2018.0     0.249    221.1
2019.0     0.249    218.8
2020.0     0.250    216.4
2021.0     0.250    214.1
2022.0     0.251    211.8
2023.0     0.252    209.5
2024.0     0.252    207.3
2025.0     0.253    205.0
2026.0     0.255    202.8
2027.0     0.256    200.6
2028.0     0.257    198.4
2029.0     0.258    196.2
2030.0     0.260    194.0
2031.0     0.261    191.9
2032.0     0.263    189.8
2033.0     0.265    187.7
2034.0     0.266    185.7
2035.0     0.268    183.7
2036.0     0.270    181.7
2037.0     0.272    179.7
2038.0     0.274    177.8
2039.0     0.276    175.9
2040.0     0.278    174.0
2041.0     0.280    172.1
2042.0     0.282    170.3
2043.0     0.284    168.5
2044.0     0.286    166.7
2045.0     0.288    165.0
2046.0     0.290    163.2
2047.0     0.292    161.5
2048.0     0.294    159.8
2049.0     0.295    158.2
2050.0     0.297    156.5
2051.0     0.299    154.9
2052.0     0.301    153.3
2053.0     0.302    151.7
2054.0     0.304    150.1
2055.0     0.305    148.6
2056.0     0.306    147.0
2057.0     0.308    145.5
2058.0     0.309    144.0
2059.0     0.310    142.5
2060.0     0.310    141.0
2061.0     0.311    139.5
2062.0     0.312    138.0
2063.0     0.312    136.5
2064.0     0.312    135.0
2065.0     0.312    133.5
2066.0     0.312    132.1
2067.0     0.312    130.6
2068.0     0.311    129.1
2069.0     0.311    127.6
2070.0     0.310    126.1
2071.0     0.309    124.6
2072.0     0.308    123.1
2073.0     0.306    121.6
2074.0     0.305    120.0
2075.0     0.303    118.4
2076.0     0.301    116.9
2077.0     0.299    115.3
2078.0     0.296    113.6
2079.0     0.293    112.0
2080.0     0.290    110.3
2081.0     0.287    108.5
2082.0     0.284    106.8
2083.0     0.280    104.9
2084.0     0.276    103.1
2085.0     0.272    101.2
2086.0     0.268     99.2
2087.0     0.263     97.1
2088.0     0.259     95.0
2089.0     0.254     92.8
2090.0     0.249     90.5
2091.0     0.243     88.1
2092.0     0.238     85.7
2093.0     0.233     83.0
2094.0     0.227     80.3
2095.0     0.221     77.4






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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