Double Star Calculator - Orbit

Orbital Elements for A1968

WDS:	A1968	WDS ID/Discoverer
P:	146.200	Orbital period (years)
a:	0.416	Semi-major axis (arcseconds)
i:	115.6	Inclination (degrees)
Ω:	143.4	Longitude of ascending node (degrees)
T:	1995.800	Epoch of periastron passage (year)
e:	0.611	Eccentricity
ω:	274.0	Longitude of periastron (degrees)
Start-Year:	1951.9	Year
End-Year:	2098.1	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1968
Position:	074103.10-012400.4	Epoch-2000 right ascension and declination
WDS-ID:	07411-0124	WDS designation
Discoverer Code:	A1968	Discover designation and components
ADS number:	6279	Aitken Double Star catalog
HD number:	61809	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.7	Magnitude of the primary
V2:	9.8	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2012	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2014a	Reference

Double Star Orbit for A1968

WDS 6th Orbit including measures of A1968

-- 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 A1968

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.334   111.53
--------------------------
1951.90    0.357     2.68
1952.90    0.359     1.54
1953.90    0.361     0.42
1954.90    0.363   359.30
1955.90    0.365   358.20
1956.90    0.366   357.11
1957.90    0.368   356.03
1958.90    0.369   354.95
1959.90    0.370   353.88
1960.90    0.371   352.82
1961.90    0.372   351.77
1962.90    0.373   350.72
1963.90    0.373   349.67
1964.90    0.373   348.62
1965.90    0.373   347.58
1966.90    0.373   346.53
1967.90    0.372   345.48
1968.90    0.371   344.42
1969.90    0.369   343.35
1970.90    0.367   342.28
1971.90    0.365   341.19
1972.90    0.362   340.09
1973.90    0.359   338.97
1974.90    0.355   337.82
1975.90    0.351   336.65
1976.90    0.345   335.45
1977.90    0.340   334.20
1978.90    0.333   332.92
1979.90    0.326   331.57
1980.90    0.317   330.17
1981.90    0.308   328.68
1982.90    0.298   327.09
1983.90    0.286   325.38
1984.90    0.273   323.51
1985.90    0.259   321.45
1986.90    0.243   319.13
1987.90    0.225   316.46
1988.90    0.205   313.31
1989.90    0.184   309.46
1990.90    0.161   304.53
1991.90    0.136   297.87
1992.90    0.111   288.26
1993.90    0.089   273.41
1994.90    0.073   250.42
1995.90    0.071   221.31
1996.90    0.084   196.36
1997.90    0.106   179.85
1998.90    0.130   169.23
1999.90    0.154   161.97
2000.90    0.177   156.64
2001.90    0.198   152.49
2002.90    0.217   149.09
2003.90    0.233   146.21
2004.90    0.248   143.70
2005.90    0.261   141.46
2006.90    0.273   139.42
2007.90    0.283   137.53
2008.90    0.292   135.77
2009.90    0.300   134.11
2010.90    0.307   132.52
2011.90    0.312   131.00
2012.90    0.317   129.53
2013.90    0.322   128.10
2014.90    0.325   126.71
2015.90    0.328   125.34
2016.90    0.331   124.00
2017.90    0.333   122.68
2018.90    0.334   121.37
2019.90    0.335   120.06
2020.90    0.336   118.77
2021.90    0.336   117.48
2022.90    0.336   116.19
2023.90    0.336   114.90
2024.90    0.336   113.61
2025.90    0.335   112.31
2026.90    0.334   111.01
2027.90    0.333   109.70
2028.90    0.332   108.38
2029.90    0.330   107.05
2030.90    0.329   105.71
2031.90    0.327   104.36
2032.90    0.326   102.99
2033.90    0.324   101.61
2034.90    0.322   100.21
2035.90    0.320    98.80
2036.90    0.318    97.37
2037.90    0.316    95.92
2038.90    0.314    94.46
2039.90    0.313    92.97
2040.90    0.311    91.47
2041.90    0.309    89.95
2042.90    0.307    88.41
2043.90    0.305    86.86
2044.90    0.303    85.28
2045.90    0.302    83.69
2046.90    0.300    82.08
2047.90    0.298    80.45
2048.90    0.297    78.80
2049.90    0.295    77.14
2050.90    0.294    75.46
2051.90    0.293    73.77
2052.90    0.292    72.07
2053.90    0.291    70.35
2054.90    0.290    68.62
2055.90    0.289    66.89
2056.90    0.289    65.14
2057.90    0.288    63.39
2058.90    0.288    61.64
2059.90    0.288    59.88
2060.90    0.288    58.12
2061.90    0.288    56.36
2062.90    0.288    54.61
2063.90    0.289    52.85
2064.90    0.289    51.11
2065.90    0.290    49.37
2066.90    0.291    47.64
2067.90    0.292    45.92
2068.90    0.293    44.21
2069.90    0.294    42.51
2070.90    0.295    40.83
2071.90    0.297    39.17
2072.90    0.298    37.52
2073.90    0.300    35.89
2074.90    0.302    34.28
2075.90    0.304    32.68
2076.90    0.305    31.11
2077.90    0.308    29.56
2078.90    0.310    28.03
2079.90    0.312    26.52
2080.90    0.314    25.03
2081.90    0.317    23.57
2082.90    0.319    22.13
2083.90    0.321    20.70
2084.90    0.324    19.30
2085.90    0.326    17.93
2086.90    0.329    16.57
2087.90    0.332    15.23
2088.90    0.334    13.92
2089.90    0.337    12.62
2090.90    0.339    11.35
2091.90    0.342    10.09
2092.90    0.344     8.85
2093.90    0.347     7.63
2094.90    0.349     6.43
2095.90    0.352     5.24
2096.90    0.354     4.07
2097.90    0.356     2.91

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 15:59:56