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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:47:04

Orbital Elements for B912
WDS: B912 WDS ID/Discoverer
P: 132.256 Orbital period (years)
a: 0.297 Semi-major axis (arcseconds)
i: 44.9 Inclination (degrees)
Ω: 226.8 Longitude of ascending node (degrees)
T: 1944.750 Epoch of periastron passage (year)
e: 0.113 Eccentricity
ω: 116.2 Longitude of periastron (degrees)
Start-Year: 1959.0 Year
End-Year: 2091.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B912
Position: 173047.97-372612.9 Epoch-2000 right ascension and declination
WDS-ID: 17308-3726 WDS designation
Discoverer Code: B912 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 158409 HD catalog number
Hipparcos number: 85700 Hipparcos catalog number
V1: 7.48 Magnitude of the primary
V2: 7.96 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for B912



WDS 6th Orbit including measures of B912

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


Ephemeris of B912
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.300    202.4
-------------------------
1959.0     0.267     35.4
1960.0     0.270     37.7
1961.0     0.273     40.0
1962.0     0.275     42.2
1963.0     0.278     44.4
1964.0     0.279     46.6
1965.0     0.280     48.8
1966.0     0.281     50.9
1967.0     0.282     53.1
1968.0     0.282     55.2
1969.0     0.282     57.3
1970.0     0.282     59.4
1971.0     0.281     61.6
1972.0     0.280     63.7
1973.0     0.279     65.9
1974.0     0.277     68.1
1975.0     0.275     70.3
1976.0     0.273     72.5
1977.0     0.271     74.8
1978.0     0.269     77.1
1979.0     0.267     79.5
1980.0     0.264     81.9
1981.0     0.261     84.3
1982.0     0.259     86.8
1983.0     0.256     89.4
1984.0     0.253     92.0
1985.0     0.250     94.6
1986.0     0.248     97.4
1987.0     0.245    100.1
1988.0     0.243    103.0
1989.0     0.241    105.9
1990.0     0.239    108.8
1991.0     0.237    111.8
1992.0     0.235    114.9
1993.0     0.234    117.9
1994.0     0.232    121.0
1995.0     0.232    124.2
1996.0     0.231    127.3
1997.0     0.231    130.5
1998.0     0.231    133.7
1999.0     0.231    136.9
2000.0     0.232    140.0
2001.0     0.233    143.1
2002.0     0.234    146.2
2003.0     0.236    149.3
2004.0     0.237    152.3
2005.0     0.239    155.3
2006.0     0.242    158.2
2007.0     0.244    161.1
2008.0     0.247    163.9
2009.0     0.250    166.6
2010.0     0.253    169.3
2011.0     0.256    171.9
2012.0     0.259    174.4
2013.0     0.263    176.9
2014.0     0.266    179.3
2015.0     0.270    181.7
2016.0     0.273    184.0
2017.0     0.276    186.2
2018.0     0.280    188.4
2019.0     0.283    190.5
2020.0     0.286    192.6
2021.0     0.289    194.7
2022.0     0.292    196.7
2023.0     0.295    198.6
2024.0     0.298    200.6
2025.0     0.300    202.4
2026.0     0.302    204.3
2027.0     0.305    206.1
2028.0     0.306    207.9
2029.0     0.308    209.7
2030.0     0.309    211.5
2031.0     0.310    213.3
2032.0     0.311    215.0
2033.0     0.312    216.8
2034.0     0.312    218.5
2035.0     0.312    220.2
2036.0     0.311    222.0
2037.0     0.311    223.7
2038.0     0.310    225.5
2039.0     0.308    227.3
2040.0     0.307    229.0
2041.0     0.305    230.9
2042.0     0.302    232.7
2043.0     0.300    234.6
2044.0     0.297    236.5
2045.0     0.293    238.4
2046.0     0.290    240.4
2047.0     0.286    242.4
2048.0     0.282    244.5
2049.0     0.277    246.7
2050.0     0.273    248.9
2051.0     0.268    251.2
2052.0     0.263    253.7
2053.0     0.257    256.2
2054.0     0.252    258.8
2055.0     0.246    261.5
2056.0     0.241    264.3
2057.0     0.235    267.3
2058.0     0.230    270.4
2059.0     0.224    273.7
2060.0     0.219    277.2
2061.0     0.214    280.8
2062.0     0.209    284.6
2063.0     0.205    288.5
2064.0     0.201    292.6
2065.0     0.197    296.9
2066.0     0.194    301.3
2067.0     0.192    305.9
2068.0     0.190    310.5
2069.0     0.189    315.2
2070.0     0.188    320.0
2071.0     0.189    324.7
2072.0     0.190    329.5
2073.0     0.191    334.1
2074.0     0.194    338.7
2075.0     0.197    343.1
2076.0     0.200    347.4
2077.0     0.204    351.6
2078.0     0.208    355.5
2079.0     0.213    359.4
2080.0     0.217      3.0
2081.0     0.222      6.5
2082.0     0.227      9.9
2083.0     0.232     13.1
2084.0     0.237     16.2
2085.0     0.242     19.1
2086.0     0.246     21.9
2087.0     0.251     24.7
2088.0     0.255     27.3
2089.0     0.259     29.9
2090.0     0.263     32.3






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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