Double Star Calculator - Orbit

Orbital Elements for HDS2175

WDS:	HDS2175	WDS ID/Discoverer
P:	136.700	Orbital period (years)
a:	0.464	Semi-major axis (arcseconds)
i:	66.2	Inclination (degrees)
Ω:	173.4	Longitude of ascending node (degrees)
T:	1993.770	Epoch of periastron passage (year)
e:	0.34	Eccentricity
ω:	159.4	Longitude of periastron (degrees)
Start-Year:	1956.65	Year
End-Year:	2093.35	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2175
Position:	152813.65-062616.2	Epoch-2000 right ascension and declination
WDS-ID:	15282-0626	WDS designation
Discoverer Code:	HDS2175	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.11	Magnitude of the primary
V2:	10.51	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2020	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2020g	Reference

Double Star Orbit for HDS2175

WDS 6th Orbit including measures of HDS2175

-- 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 HDS2175

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.228   112.78
--------------------------
1956.65    0.483   185.16
1957.65    0.471   186.11
1958.65    0.458   187.10
1959.65    0.445   188.16
1960.65    0.431   189.28
1961.65    0.417   190.48
1962.65    0.402   191.76
1963.65    0.387   193.14
1964.65    0.371   194.64
1965.65    0.355   196.27
1966.65    0.339   198.06
1967.65    0.322   200.03
1968.65    0.305   202.22
1969.65    0.288   204.67
1970.65    0.270   207.43
1971.65    0.253   210.58
1972.65    0.236   214.19
1973.65    0.219   218.35
1974.65    0.203   223.19
1975.65    0.188   228.83
1976.65    0.175   235.39
1977.65    0.163   242.95
1978.65    0.154   251.52
1979.65    0.149   260.93
1980.65    0.147   270.82
1981.65    0.149   280.73
1982.65    0.154   290.17
1983.65    0.162   298.81
1984.65    0.173   306.47
1985.65    0.186   313.16
1986.65    0.200   318.97
1987.65    0.214   324.01
1988.65    0.228   328.42
1989.65    0.242   332.31
1990.65    0.256   335.78
1991.65    0.268   338.92
1992.65    0.279   341.80
1993.65    0.289   344.47
1994.65    0.297   346.97
1995.65    0.304   349.35
1996.65    0.309   351.65
1997.65    0.312   353.88
1998.65    0.313   356.08
1999.65    0.313   358.27
2000.65    0.311     0.48
2001.65    0.308     2.72
2002.65    0.304     5.01
2003.65    0.298     7.39
2004.65    0.291     9.87
2005.65    0.283    12.48
2006.65    0.275    15.24
2007.65    0.266    18.19
2008.65    0.256    21.35
2009.65    0.247    24.75
2010.65    0.237    28.43
2011.65    0.228    32.43
2012.65    0.219    36.76
2013.65    0.210    41.44
2014.65    0.203    46.50
2015.65    0.196    51.91
2016.65    0.191    57.65
2017.65    0.188    63.65
2018.65    0.186    69.82
2019.65    0.186    76.05
2020.65    0.188    82.23
2021.65    0.191    88.25
2022.65    0.196    94.00
2023.65    0.203    99.42
2024.65    0.211   104.47
2025.65    0.220   109.13
2026.65    0.230   113.40
2027.65    0.240   117.30
2028.65    0.252   120.86
2029.65    0.264   124.10
2030.65    0.276   127.06
2031.65    0.289   129.76
2032.65    0.301   132.24
2033.65    0.314   134.51
2034.65    0.327   136.60
2035.65    0.340   138.54
2036.65    0.353   140.33
2037.65    0.366   141.99
2038.65    0.378   143.55
2039.65    0.391   145.00
2040.65    0.403   146.37
2041.65    0.415   147.65
2042.65    0.427   148.86
2043.65    0.439   150.01
2044.65    0.450   151.10
2045.65    0.461   152.14
2046.65    0.471   153.13
2047.65    0.482   154.08
2048.65    0.492   154.99
2049.65    0.501   155.86
2050.65    0.511   156.70
2051.65    0.520   157.51
2052.65    0.528   158.29
2053.65    0.536   159.05
2054.65    0.544   159.79
2055.65    0.551   160.51
2056.65    0.558   161.21
2057.65    0.565   161.89
2058.65    0.571   162.56
2059.65    0.577   163.21
2060.65    0.582   163.85
2061.65    0.587   164.48
2062.65    0.591   165.10
2063.65    0.595   165.71
2064.65    0.598   166.32
2065.65    0.601   166.92
2066.65    0.604   167.51
2067.65    0.606   168.10
2068.65    0.607   168.68
2069.65    0.608   169.27
2070.65    0.609   169.85
2071.65    0.609   170.43
2072.65    0.609   171.01
2073.65    0.608   171.59
2074.65    0.606   172.17
2075.65    0.605   172.76
2076.65    0.602   173.35
2077.65    0.599   173.95
2078.65    0.596   174.55
2079.65    0.592   175.16
2080.65    0.587   175.78
2081.65    0.582   176.41
2082.65    0.577   177.05
2083.65    0.571   177.70
2084.65    0.564   178.37
2085.65    0.557   179.05
2086.65    0.549   179.76
2087.65    0.541   180.48
2088.65    0.532   181.23
2089.65    0.522   182.01
2090.65    0.512   182.81
2091.65    0.502   183.65
2092.65    0.491   184.52

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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 17:15:55