Double Star Calculator - Orbit

Orbital Elements for A1056

WDS:	A1056	WDS ID/Discoverer
P:	113.600	Orbital period (years)
a:	0.4049	Semi-major axis (arcseconds)
i:	78.5	Inclination (degrees)
Ω:	70.4	Longitude of ascending node (degrees)
T:	1995.910	Epoch of periastron passage (year)
e:	0.712	Eccentricity
ω:	257.8	Longitude of periastron (degrees)
Start-Year:	1968.2	Year
End-Year:	2081.8	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1056
Position:	064804.16-094739.0	Epoch-2000 right ascension and declination
WDS-ID:	06481-0948	WDS designation
Discoverer Code:	A1056	Discover designation and components
ADS number:	5464	Aitken Double Star catalog
HD number:	49437	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.3	Magnitude of the primary
V2:	9.4	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2023	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2024a	Reference

Double Star Orbit for A1056

WDS 6th Orbit including measures of A1056

-- 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 A1056

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.345    86.60
--------------------------
1968.20    0.168   210.18
1969.20    0.173   212.68
1970.20    0.179   215.03
1971.20    0.184   217.25
1972.20    0.189   219.33
1973.20    0.195   221.30
1974.20    0.200   223.17
1975.20    0.205   224.94
1976.20    0.210   226.63
1977.20    0.215   228.24
1978.20    0.219   229.78
1979.20    0.223   231.27
1980.20    0.227   232.70
1981.20    0.230   234.10
1982.20    0.232   235.46
1983.20    0.234   236.80
1984.20    0.235   238.12
1985.20    0.234   239.45
1986.20    0.232   240.78
1987.20    0.229   242.15
1988.20    0.224   243.57
1989.20    0.216   245.07
1990.20    0.205   246.71
1991.20    0.190   248.57
1992.20    0.170   250.81
1993.20    0.143   253.79
1994.20    0.108   258.46
1995.20    0.065   268.78
1996.20    0.025   319.12
1997.20    0.050    42.73
1998.20    0.096    57.80
1999.20    0.137    63.27
2000.20    0.173    66.33
2001.20    0.202    68.40
2002.20    0.228    69.97
2003.20    0.249    71.25
2004.20    0.268    72.34
2005.20    0.284    73.29
2006.20    0.297    74.15
2007.20    0.309    74.95
2008.20    0.319    75.68
2009.20    0.327    76.38
2010.20    0.334    77.05
2011.20    0.340    77.68
2012.20    0.345    78.30
2013.20    0.349    78.90
2014.20    0.353    79.49
2015.20    0.355    80.07
2016.20    0.357    80.65
2017.20    0.358    81.22
2018.20    0.359    81.78
2019.20    0.359    82.35
2020.20    0.358    82.92
2021.20    0.357    83.49
2022.20    0.356    84.06
2023.20    0.354    84.64
2024.20    0.351    85.22
2025.20    0.349    85.81
2026.20    0.346    86.42
2027.20    0.343    87.03
2028.20    0.339    87.66
2029.20    0.335    88.30
2030.20    0.331    88.95
2031.20    0.327    89.63
2032.20    0.322    90.32
2033.20    0.317    91.03
2034.20    0.312    91.76
2035.20    0.307    92.52
2036.20    0.302    93.30
2037.20    0.296    94.12
2038.20    0.291    94.96
2039.20    0.285    95.84
2040.20    0.279    96.75
2041.20    0.273    97.71
2042.20    0.267    98.71
2043.20    0.260    99.76
2044.20    0.254   100.86
2045.20    0.248   102.01
2046.20    0.241   103.23
2047.20    0.235   104.51
2048.20    0.228   105.87
2049.20    0.222   107.30
2050.20    0.215   108.82
2051.20    0.209   110.44
2052.20    0.203   112.16
2053.20    0.196   113.99
2054.20    0.190   115.94
2055.20    0.184   118.03
2056.20    0.178   120.25
2057.20    0.172   122.63
2058.20    0.166   125.17
2059.20    0.161   127.89
2060.20    0.156   130.78
2061.20    0.151   133.86
2062.20    0.147   137.14
2063.20    0.143   140.60
2064.20    0.139   144.25
2065.20    0.136   148.07
2066.20    0.134   152.05
2067.20    0.132   156.16
2068.20    0.131   160.36
2069.20    0.130   164.63
2070.20    0.130   168.92
2071.20    0.131   173.19
2072.20    0.132   177.41
2073.20    0.134   181.52
2074.20    0.136   185.51
2075.20    0.139   189.34
2076.20    0.143   193.01
2077.20    0.146   196.50
2078.20    0.151   199.80
2079.20    0.155   202.91
2080.20    0.160   205.85
2081.20    0.165   208.61

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 15:51:02