Double Star Calculator - Orbit

Orbital Elements for A2880

WDS:	A2880	WDS ID/Discoverer
P:	109.600	Orbital period (years)
a:	0.1815	Semi-major axis (arcseconds)
i:	47.86	Inclination (degrees)
Ω:	93.32	Longitude of ascending node (degrees)
T:	1991.903	Epoch of periastron passage (year)
e:	0.6046	Eccentricity
ω:	291.23	Longitude of periastron (degrees)
Start-Year:	1970.2	Year
End-Year:	2079.8	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2880
Position:	075047.36+031638.4	Epoch-2000 right ascension and declination
WDS-ID:	07508+0317	WDS designation
Discoverer Code:	A2880	Discover designation and components
ADS number:	6405	Aitken Double Star catalog
HD number:	63799	HD catalog number
Hipparcos number:	38300	Hipparcos catalog number
V1:	7.1	Magnitude of the primary
V2:	7.1	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Msn2023	Reference

Double Star Orbit for A2880

WDS 6th Orbit including measures of A2880

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

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of A2880

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.176   182.13
--------------------------
1970.20    0.197   254.51
1971.20    0.194   256.02
1972.20    0.190   257.59
1973.20    0.186   259.22
1974.20    0.182   260.93
1975.20    0.177   262.73
1976.20    0.172   264.63
1977.20    0.166   266.66
1978.20    0.160   268.83
1979.20    0.153   271.19
1980.20    0.146   273.76
1981.20    0.138   276.62
1982.20    0.130   279.83
1983.20    0.121   283.50
1984.20    0.111   287.79
1985.20    0.101   292.95
1986.20    0.090   299.34
1987.20    0.078   307.55
1988.20    0.067   318.54
1989.20    0.057   333.62
1990.20    0.051   353.78
1991.20    0.049    17.36
1992.20    0.054    39.57
1993.20    0.062    57.16
1994.20    0.071    70.35
1995.20    0.080    80.43
1996.20    0.089    88.49
1997.20    0.097    95.20
1998.20    0.103   100.99
1999.20    0.109   106.12
2000.20    0.114   110.78
2001.20    0.118   115.06
2002.20    0.122   119.05
2003.20    0.126   122.81
2004.20    0.129   126.37
2005.20    0.132   129.77
2006.20    0.135   133.03
2007.20    0.137   136.17
2008.20    0.139   139.19
2009.20    0.142   142.12
2010.20    0.144   144.96
2011.20    0.146   147.71
2012.20    0.148   150.39
2013.20    0.150   152.99
2014.20    0.152   155.53
2015.20    0.154   158.00
2016.20    0.156   160.41
2017.20    0.158   162.76
2018.20    0.160   165.05
2019.20    0.162   167.29
2020.20    0.164   169.47
2021.20    0.166   171.61
2022.20    0.168   173.69
2023.20    0.169   175.73
2024.20    0.171   177.72
2025.20    0.173   179.67
2026.20    0.175   181.57
2027.20    0.177   183.43
2028.20    0.179   185.26
2029.20    0.181   187.04
2030.20    0.183   188.79
2031.20    0.185   190.50
2032.20    0.187   192.18
2033.20    0.188   193.82
2034.20    0.190   195.43
2035.20    0.192   197.01
2036.20    0.194   198.57
2037.20    0.196   200.09
2038.20    0.197   201.59
2039.20    0.199   203.06
2040.20    0.201   204.51
2041.20    0.202   205.93
2042.20    0.204   207.33
2043.20    0.205   208.71
2044.20    0.207   210.07
2045.20    0.208   211.41
2046.20    0.210   212.73
2047.20    0.211   214.04
2048.20    0.212   215.33
2049.20    0.214   216.60
2050.20    0.215   217.86
2051.20    0.216   219.11
2052.20    0.217   220.35
2053.20    0.218   221.57
2054.20    0.219   222.79
2055.20    0.219   223.99
2056.20    0.220   225.19
2057.20    0.221   226.38
2058.20    0.221   227.57
2059.20    0.221   228.75
2060.20    0.222   229.93
2061.20    0.222   231.10
2062.20    0.222   232.28
2063.20    0.222   233.45
2064.20    0.222   234.63
2065.20    0.221   235.81
2066.20    0.221   236.99
2067.20    0.220   238.18
2068.20    0.220   239.37
2069.20    0.219   240.58
2070.20    0.218   241.79
2071.20    0.216   243.02
2072.20    0.215   244.26
2073.20    0.213   245.52
2074.20    0.212   246.80
2075.20    0.210   248.11
2076.20    0.207   249.44
2077.20    0.205   250.80
2078.20    0.202   252.19
2079.20    0.199   253.63

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 16:02:11