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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:39:48

Orbital Elements for B1605BA,BB
WDS: B1605BA,BB WDS ID/Discoverer
P: 103.330 Orbital period (years)
a: 0.199 Semi-major axis (arcseconds)
i: 136.4 Inclination (degrees)
Ω: 277.2 Longitude of ascending node (degrees)
T: 1990.410 Epoch of periastron passage (year)
e: 0.013 Eccentricity
ω: 50.6 Longitude of periastron (degrees)
Start-Year: 1974.0 Year
End-Year: 2076.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1605BA,BB
Position: 082618.31-390336.8 Epoch-2000 right ascension and declination
WDS-ID: 08263-3904 WDS designation
Discoverer Code: B1605BA,BB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 71488 HD catalog number
Hipparcos number: 41361 Hipparcos catalog number
V1: 7.9 Magnitude of the primary
V2: 8.1 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for B1605BA,BB



WDS 6th Orbit including measures of B1605BA,BB

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


Ephemeris of B1605BA,BB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.199    102.7
-------------------------
1974.0     0.197    282.9
1975.0     0.197    280.3
1976.0     0.197    277.8
1977.0     0.197    275.2
1978.0     0.197    272.6
1979.0     0.196    270.0
1980.0     0.194    267.4
1981.0     0.193    264.7
1982.0     0.191    262.0
1983.0     0.189    259.2
1984.0     0.186    256.4
1985.0     0.184    253.5
1986.0     0.181    250.5
1987.0     0.178    247.3
1988.0     0.174    244.1
1989.0     0.171    240.8
1990.0     0.168    237.3
1991.0     0.164    233.6
1992.0     0.161    229.9
1993.0     0.158    225.9
1994.0     0.155    221.8
1995.0     0.152    217.6
1996.0     0.149    213.2
1997.0     0.147    208.6
1998.0     0.145    203.9
1999.0     0.144    199.2
2000.0     0.143    194.3
2001.0     0.143    189.4
2002.0     0.143    184.5
2003.0     0.143    179.6
2004.0     0.144    174.8
2005.0     0.146    170.0
2006.0     0.148    165.4
2007.0     0.150    160.9
2008.0     0.153    156.6
2009.0     0.156    152.4
2010.0     0.159    148.4
2011.0     0.162    144.5
2012.0     0.166    140.8
2013.0     0.169    137.2
2014.0     0.173    133.8
2015.0     0.176    130.5
2016.0     0.179    127.4
2017.0     0.183    124.3
2018.0     0.186    121.4
2019.0     0.188    118.5
2020.0     0.191    115.8
2021.0     0.193    113.0
2022.0     0.195    110.4
2023.0     0.197    107.8
2024.0     0.198    105.3
2025.0     0.199    102.7
2026.0     0.200    100.2
2027.0     0.201     97.7
2028.0     0.201     95.3
2029.0     0.200     92.8
2030.0     0.200     90.3
2031.0     0.199     87.8
2032.0     0.197     85.2
2033.0     0.196     82.6
2034.0     0.194     80.0
2035.0     0.192     77.3
2036.0     0.189     74.5
2037.0     0.186     71.7
2038.0     0.184     68.8
2039.0     0.181     65.8
2040.0     0.177     62.7
2041.0     0.174     59.4
2042.0     0.171     56.1
2043.0     0.168     52.6
2044.0     0.164     48.9
2045.0     0.161     45.2
2046.0     0.158     41.2
2047.0     0.155     37.2
2048.0     0.153     33.0
2049.0     0.151     28.6
2050.0     0.149     24.2
2051.0     0.147     19.6
2052.0     0.146     15.0
2053.0     0.146     10.3
2054.0     0.146      5.6
2055.0     0.146      0.9
2056.0     0.147    356.2
2057.0     0.148    351.6
2058.0     0.149    347.1
2059.0     0.151    342.7
2060.0     0.154    338.4
2061.0     0.156    334.2
2062.0     0.159    330.2
2063.0     0.162    326.3
2064.0     0.165    322.6
2065.0     0.168    319.0
2066.0     0.172    315.5
2067.0     0.175    312.2
2068.0     0.178    309.0
2069.0     0.181    305.9
2070.0     0.184    302.9
2071.0     0.186    300.0
2072.0     0.189    297.1
2073.0     0.191    294.4
2074.0     0.193    291.6
2075.0     0.194    289.0






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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