Double Star Calculator - Orbit

Orbital Elements for A2404

WDS:	A2404	WDS ID/Discoverer
P:	114.300	Orbital period (years)
a:	0.235	Semi-major axis (arcseconds)
i:	104.7	Inclination (degrees)
Ω:	179.2	Longitude of ascending node (degrees)
T:	1960.900	Epoch of periastron passage (year)
e:	0.073	Eccentricity
ω:	352.4	Longitude of periastron (degrees)
Start-Year:	1967.85	Year
End-Year:	2082.15	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2404
Position:	014052.03+013741.8	Epoch-2000 right ascension and declination
WDS-ID:	01409+0138	WDS designation
Discoverer Code:	A2404	Discover designation and components
ADS number:	1323	Aitken Double Star catalog
HD number:	10313	HD catalog number
Hipparcos number:	7842	Hipparcos catalog number
V1:	9.3	Magnitude of the primary
V2:	9.3	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1996	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:	Zir2010b	Reference

Double Star Orbit for A2404

WDS 6th Orbit including measures of A2404

-- 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 A2404

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.242   355.16
--------------------------
1967.85    0.210   174.57
1968.85    0.206   173.55
1969.85    0.201   172.49
1970.85    0.196   171.37
1971.85    0.190   170.19
1972.85    0.184   168.93
1973.85    0.176   167.57
1974.85    0.169   166.09
1975.85    0.161   164.48
1976.85    0.152   162.68
1977.85    0.144   160.67
1978.85    0.135   158.40
1979.85    0.125   155.78
1980.85    0.116   152.75
1981.85    0.106   149.18
1982.85    0.097   144.91
1983.85    0.088   139.77
1984.85    0.080   133.50
1985.85    0.072   125.86
1986.85    0.066   116.65
1987.85    0.062   105.88
1988.85    0.060    93.96
1989.85    0.061    81.75
1990.85    0.063    70.23
1991.85    0.069    60.07
1992.85    0.075    51.52
1993.85    0.083    44.48
1994.85    0.092    38.72
1995.85    0.101    33.98
1996.85    0.111    30.04
1997.85    0.120    26.73
1998.85    0.130    23.91
1999.85    0.139    21.48
2000.85    0.149    19.36
2001.85    0.158    17.49
2002.85    0.167    15.82
2003.85    0.176    14.32
2004.85    0.184    12.96
2005.85    0.192    11.72
2006.85    0.199    10.57
2007.85    0.206     9.50
2008.85    0.213     8.50
2009.85    0.219     7.56
2010.85    0.225     6.66
2011.85    0.230     5.81
2012.85    0.235     5.00
2013.85    0.239     4.21
2014.85    0.242     3.45
2015.85    0.245     2.71
2016.85    0.248     1.99
2017.85    0.250     1.28
2018.85    0.251     0.58
2019.85    0.252   359.88
2020.85    0.252   359.19
2021.85    0.252   358.49
2022.85    0.251   357.80
2023.85    0.249   357.09
2024.85    0.247   356.38
2025.85    0.244   355.64
2026.85    0.241   354.90
2027.85    0.237   354.12
2028.85    0.233   353.33
2029.85    0.228   352.49
2030.85    0.222   351.62
2031.85    0.216   350.71
2032.85    0.210   349.74
2033.85    0.203   348.70
2034.85    0.195   347.59
2035.85    0.187   346.38
2036.85    0.179   345.07
2037.85    0.170   343.63
2038.85    0.162   342.03
2039.85    0.152   340.24
2040.85    0.143   338.22
2041.85    0.133   335.90
2042.85    0.123   333.21
2043.85    0.113   330.05
2044.85    0.103   326.30
2045.85    0.094   321.76
2046.85    0.085   316.23
2047.85    0.076   309.42
2048.85    0.069   301.05
2049.85    0.063   290.95
2050.85    0.060   279.27
2051.85    0.059   266.64
2052.85    0.060   254.14
2053.85    0.065   242.78
2054.85    0.071   233.07
2055.85    0.078   225.08
2056.85    0.087   218.57
2057.85    0.096   213.26
2058.85    0.105   208.90
2059.85    0.115   205.27
2060.85    0.125   202.20
2061.85    0.134   199.57
2062.85    0.143   197.28
2063.85    0.152   195.27
2064.85    0.161   193.47
2065.85    0.169   191.86
2066.85    0.177   190.39
2067.85    0.184   189.03
2068.85    0.190   187.78
2069.85    0.196   186.60
2070.85    0.202   185.49
2071.85    0.206   184.43
2072.85    0.210   183.41
2073.85    0.213   182.43
2074.85    0.215   181.47
2075.85    0.217   180.53
2076.85    0.218   179.60
2077.85    0.218   178.67
2078.85    0.217   177.74
2079.85    0.216   176.80
2080.85    0.214   175.85
2081.85    0.211   174.87

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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 14:52:43