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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:20:18

Orbital Elements for A883AB

WDS:	A883AB	WDS ID/Discoverer
P:	81.110	Orbital period (years)
a:	0.167	Semi-major axis (arcseconds)
i:	126.8	Inclination (degrees)
Ω:	116.6	Longitude of ascending node (degrees)
T:	1946.270	Epoch of periastron passage (year)
e:	0.17	Eccentricity
ω:	260.9	Longitude of periastron (degrees)
Start-Year:	1985.0	Year
End-Year:	2065.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A883AB

Position:	211441.11-004954.9	Epoch-2000 right ascension and declination
WDS-ID:	21147-0050	WDS designation
Discoverer Code:	A883AB	Discover designation and components
ADS number:	14775	Aitken Double Star catalog
HD number:	202260	HD catalog number
Hipparcos number:	104878	Hipparcos catalog number
V1:	7.46	Magnitude of the primary
V2:	8.3	Magnitude of the secondary
Equinox:		Equinox
Date:	2006	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A883AB

WDS 6th Orbit including measures of A883AB

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

Ephemeris of A883AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.095    243.4
-------------------------
1985.0     0.124     50.6
1986.0     0.121     45.7
1987.0     0.119     40.7
1988.0     0.118     35.5
1989.0     0.117     30.2
1990.0     0.117     24.8
1991.0     0.117     19.5
1992.0     0.118     14.2
1993.0     0.119      9.0
1994.0     0.121      3.9
1995.0     0.123    359.0
1996.0     0.126    354.3
1997.0     0.129    349.8
1998.0     0.132    345.5
1999.0     0.136    341.4
2000.0     0.139    337.6
2001.0     0.142    333.9
2002.0     0.146    330.4
2003.0     0.149    327.0
2004.0     0.152    323.8
2005.0     0.155    320.7
2006.0     0.157    317.6
2007.0     0.159    314.7
2008.0     0.160    311.8
2009.0     0.161    309.0
2010.0     0.161    306.2
2011.0     0.161    303.4
2012.0     0.160    300.6
2013.0     0.159    297.7
2014.0     0.156    294.8
2015.0     0.153    291.7
2016.0     0.150    288.5
2017.0     0.145    285.2
2018.0     0.140    281.6
2019.0     0.135    277.7
2020.0     0.128    273.5
2021.0     0.122    268.8
2022.0     0.115    263.6
2023.0     0.108    257.7
2024.0     0.101    251.0
2025.0     0.095    243.4
2026.0     0.090    234.9
2027.0     0.086    225.4
2028.0     0.084    215.2
2029.0     0.083    204.6
2030.0     0.085    194.3
2031.0     0.088    184.4
2032.0     0.093    175.5
2033.0     0.099    167.5
2034.0     0.105    160.5
2035.0     0.112    154.3
2036.0     0.120    148.9
2037.0     0.127    144.1
2038.0     0.133    139.8
2039.0     0.140    135.8
2040.0     0.146    132.3
2041.0     0.151    128.9
2042.0     0.156    125.8
2043.0     0.160    122.9
2044.0     0.163    120.1
2045.0     0.166    117.4
2046.0     0.168    114.8
2047.0     0.169    112.2
2048.0     0.170    109.7
2049.0     0.170    107.2
2050.0     0.170    104.7
2051.0     0.169    102.1
2052.0     0.168     99.6
2053.0     0.166     96.9
2054.0     0.164     94.2
2055.0     0.161     91.5
2056.0     0.158     88.6
2057.0     0.155     85.6
2058.0     0.152     82.5
2059.0     0.148     79.3
2060.0     0.144     75.8
2061.0     0.141     72.2
2062.0     0.137     68.4
2063.0     0.133     64.4
2064.0     0.130     60.2

Disclaimer

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.