Double Star Calculator - Orbit

Orbital Elements for HDS2163

WDS:	HDS2163	WDS ID/Discoverer
P:	130.910	Orbital period (years)
a:	0.261	Semi-major axis (arcseconds)
i:	66.0	Inclination (degrees)
Ω:	3.7	Longitude of ascending node (degrees)
T:	1993.530	Epoch of periastron passage (year)
e:	0.483	Eccentricity
ω:	39.2	Longitude of periastron (degrees)
Start-Year:	1959.545	Year
End-Year:	2090.455	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2163
Position:	152235.11+725415.2	Epoch-2000 right ascension and declination
WDS-ID:	15226+7254	WDS designation
Discoverer Code:	HDS2163	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	137825	HD catalog number
Hipparcos number:	75248	Hipparcos catalog number
V1:	9.22	Magnitude of the primary
V2:	10.62	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2010	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Cve2015b	Reference

Double Star Orbit for HDS2163

WDS 6th Orbit including measures of HDS2163

-- 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 HDS2163

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.315   183.06
--------------------------
1959.55    0.143   246.78
1960.55    0.138   250.16
1961.55    0.133   253.80
1962.55    0.129   257.70
1963.55    0.125   261.85
1964.55    0.121   266.26
1965.55    0.119   270.90
1966.55    0.116   275.75
1967.55    0.115   280.75
1968.55    0.114   285.86
1969.55    0.114   291.03
1970.55    0.114   296.18
1971.55    0.115   301.25
1972.55    0.117   306.20
1973.55    0.119   310.98
1974.55    0.122   315.57
1975.55    0.125   319.94
1976.55    0.129   324.09
1977.55    0.132   328.01
1978.55    0.136   331.73
1979.55    0.139   335.26
1980.55    0.143   338.61
1981.55    0.146   341.81
1982.55    0.149   344.89
1983.55    0.151   347.87
1984.55    0.152   350.78
1985.55    0.153   353.65
1986.55    0.152   356.52
1987.55    0.150   359.44
1988.55    0.147     2.45
1989.55    0.143     5.62
1990.55    0.137     9.03
1991.55    0.129    12.80
1992.55    0.120    17.10
1993.55    0.110    22.13
1994.55    0.099    28.25
1995.55    0.088    35.92
1996.55    0.077    45.75
1997.55    0.069    58.40
1998.55    0.063    73.97
1999.55    0.062    91.22
2000.55    0.066   107.72
2001.55    0.074   121.54
2002.55    0.084   132.31
2003.55    0.096   140.53
2004.55    0.109   146.85
2005.55    0.123   151.82
2006.55    0.136   155.81
2007.55    0.149   159.10
2008.55    0.162   161.86
2009.55    0.174   164.22
2010.55    0.186   166.27
2011.55    0.198   168.07
2012.55    0.209   169.68
2013.55    0.220   171.13
2014.55    0.230   172.46
2015.55    0.239   173.67
2016.55    0.249   174.79
2017.55    0.257   175.83
2018.55    0.265   176.81
2019.55    0.273   177.73
2020.55    0.280   178.60
2021.55    0.287   179.43
2022.55    0.294   180.22
2023.55    0.300   180.98
2024.55    0.305   181.71
2025.55    0.311   182.41
2026.55    0.316   183.09
2027.55    0.320   183.75
2028.55    0.324   184.39
2029.55    0.328   185.02
2030.55    0.332   185.63
2031.55    0.335   186.23
2032.55    0.338   186.82
2033.55    0.340   187.40
2034.55    0.342   187.98
2035.55    0.344   188.54
2036.55    0.346   189.10
2037.55    0.347   189.66
2038.55    0.348   190.21
2039.55    0.349   190.76
2040.55    0.349   191.31
2041.55    0.350   191.86
2042.55    0.349   192.40
2043.55    0.349   192.95
2044.55    0.349   193.50
2045.55    0.348   194.05
2046.55    0.347   194.60
2047.55    0.346   195.16
2048.55    0.344   195.72
2049.55    0.342   196.28
2050.55    0.340   196.86
2051.55    0.338   197.43
2052.55    0.336   198.02
2053.55    0.333   198.62
2054.55    0.331   199.22
2055.55    0.328   199.84
2056.55    0.325   200.47
2057.55    0.321   201.11
2058.55    0.318   201.76
2059.55    0.314   202.43
2060.55    0.310   203.11
2061.55    0.306   203.82
2062.55    0.302   204.54
2063.55    0.297   205.28
2064.55    0.293   206.05
2065.55    0.288   206.84
2066.55    0.283   207.66
2067.55    0.278   208.51
2068.55    0.273   209.38
2069.55    0.268   210.30
2070.55    0.262   211.25
2071.55    0.257   212.24
2072.55    0.251   213.27
2073.55    0.245   214.35
2074.55    0.239   215.49
2075.55    0.233   216.68
2076.55    0.227   217.94
2077.55    0.221   219.27
2078.55    0.215   220.67
2079.55    0.209   222.15
2080.55    0.203   223.73
2081.55    0.196   225.40
2082.55    0.190   227.19
2083.55    0.184   229.10
2084.55    0.178   231.15
2085.55    0.171   233.34
2086.55    0.165   235.70
2087.55    0.159   238.23
2088.55    0.153   240.96
2089.55    0.148   243.90

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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 17:14:14