Double Star Calculator - Orbit

Orbital Elements for HO60

WDS:	HO60	WDS ID/Discoverer
P:	195.610	Orbital period (years)
a:	0.314	Semi-major axis (arcseconds)
i:	107.6	Inclination (degrees)
Ω:	37.7	Longitude of ascending node (degrees)
T:	1972.180	Epoch of periastron passage (year)
e:	0.562	Eccentricity
ω:	163.5	Longitude of periastron (degrees)
Start-Year:	1927.195	Year
End-Year:	2122.805	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HO60
Position:	151335.21+345254.8	Epoch-2000 right ascension and declination
WDS-ID:	15136+3453	WDS designation
Discoverer Code:	HO60	Discover designation and components
ADS number:	9547	Aitken Double Star catalog
HD number:	135365	HD catalog number
Hipparcos number:	74512	Hipparcos catalog number
V1:	9.2	Magnitude of the primary
V2:	9.3	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	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:	Doc2017f	Reference

Double Star Orbit for HO60

WDS 6th Orbit including measures of HO60

-- 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 HO60

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.301    55.48
--------------------------
1927.19    0.355    30.58
1928.19    0.349    30.21
1929.19    0.342    29.83
1930.19    0.335    29.44
1931.19    0.328    29.03
1932.19    0.321    28.60
1933.19    0.314    28.15
1934.19    0.306    27.67
1935.19    0.298    27.18
1936.19    0.290    26.65
1937.19    0.282    26.10
1938.19    0.273    25.51
1939.19    0.265    24.88
1940.19    0.256    24.21
1941.19    0.246    23.49
1942.19    0.237    22.71
1943.19    0.227    21.87
1944.19    0.218    20.95
1945.19    0.208    19.95
1946.19    0.197    18.84
1947.19    0.187    17.61
1948.19    0.176    16.23
1949.19    0.166    14.68
1950.19    0.155    12.90
1951.19    0.143    10.86
1952.19    0.132     8.47
1953.19    0.121     5.64
1954.19    0.110     2.23
1955.19    0.099   358.07
1956.19    0.089   352.90
1957.19    0.079   346.37
1958.19    0.070   338.07
1959.19    0.062   327.59
1960.19    0.057   314.84
1961.19    0.055   300.45
1962.19    0.057   285.89
1963.19    0.061   272.72
1964.19    0.068   261.75
1965.19    0.076   252.95
1966.19    0.085   245.95
1967.19    0.095   240.32
1968.19    0.104   235.69
1969.19    0.112   231.80
1970.19    0.120   228.44
1971.19    0.127   225.47
1972.19    0.132   222.78
1973.19    0.137   220.28
1974.19    0.139   217.90
1975.19    0.141   215.59
1976.19    0.141   213.31
1977.19    0.140   211.00
1978.19    0.137   208.63
1979.19    0.134   206.17
1980.19    0.130   203.56
1981.19    0.125   200.76
1982.19    0.120   197.72
1983.19    0.114   194.40
1984.19    0.108   190.72
1985.19    0.102   186.62
1986.19    0.097   182.03
1987.19    0.091   176.88
1988.19    0.086   171.12
1989.19    0.082   164.73
1990.19    0.079   157.73
1991.19    0.077   150.23
1992.19    0.076   142.41
1993.19    0.076   134.51
1994.19    0.078   126.79
1995.19    0.080   119.48
1996.19    0.084   112.74
1997.19    0.089   106.64
1998.19    0.094   101.21
1999.19    0.100    96.40
2000.19    0.107    92.16
2001.19    0.114    88.43
2002.19    0.121    85.13
2003.19    0.129    82.21
2004.19    0.136    79.62
2005.19    0.144    77.30
2006.19    0.152    75.22
2007.19    0.160    73.35
2008.19    0.167    71.65
2009.19    0.175    70.11
2010.19    0.183    68.69
2011.19    0.191    67.40
2012.19    0.199    66.20
2013.19    0.206    65.09
2014.19    0.214    64.07
2015.19    0.222    63.11
2016.19    0.229    62.22
2017.19    0.237    61.38
2018.19    0.244    60.60
2019.19    0.251    59.85
2020.19    0.258    59.16
2021.19    0.265    58.49
2022.19    0.272    57.87
2023.19    0.279    57.27
2024.19    0.286    56.70
2025.19    0.292    56.16
2026.19    0.299    55.64
2027.19    0.305    55.14
2028.19    0.312    54.66
2029.19    0.318    54.21
2030.19    0.324    53.76
2031.19    0.330    53.34
2032.19    0.336    52.93
2033.19    0.342    52.53
2034.19    0.347    52.15
2035.19    0.353    51.78
2036.19    0.358    51.42
2037.19    0.363    51.07
2038.19    0.369    50.73
2039.19    0.374    50.40
2040.19    0.379    50.08
2041.19    0.383    49.77
2042.19    0.388    49.47
2043.19    0.393    49.17
2044.19    0.397    48.88
2045.19    0.401    48.59
2046.19    0.406    48.31
2047.19    0.410    48.04
2048.19    0.414    47.77
2049.19    0.418    47.51
2050.19    0.422    47.25
2051.19    0.425    47.00
2052.19    0.429    46.75
2053.19    0.432    46.51
2054.19    0.436    46.27
2055.19    0.439    46.03
2056.19    0.442    45.79
2057.19    0.445    45.56
2058.19    0.448    45.33
2059.19    0.450    45.11
2060.19    0.453    44.89
2061.19    0.455    44.67
2062.19    0.458    44.45
2063.19    0.460    44.23
2064.19    0.462    44.02
2065.19    0.464    43.81
2066.19    0.466    43.60
2067.19    0.468    43.39
2068.19    0.470    43.18
2069.19    0.471    42.98
2070.19    0.472    42.78
2071.19    0.474    42.57
2072.19    0.475    42.37
2073.19    0.476    42.17
2074.19    0.477    41.97
2075.19    0.478    41.77
2076.19    0.478    41.57
2077.19    0.479    41.37
2078.19    0.479    41.18
2079.19    0.480    40.98
2080.19    0.480    40.78
2081.19    0.480    40.58
2082.19    0.480    40.39
2083.19    0.479    40.19
2084.19    0.479    39.99
2085.19    0.479    39.79
2086.19    0.478    39.60
2087.19    0.477    39.40
2088.19    0.476    39.20
2089.19    0.475    39.00
2090.19    0.474    38.80
2091.19    0.473    38.59
2092.19    0.472    38.39
2093.19    0.470    38.19
2094.19    0.468    37.98
2095.19    0.467    37.77
2096.19    0.465    37.56
2097.19    0.462    37.35
2098.19    0.460    37.14
2099.19    0.458    36.92
2100.19    0.455    36.70
2101.19    0.453    36.48
2102.19    0.450    36.26
2103.19    0.447    36.04
2104.19    0.444    35.81
2105.19    0.440    35.57
2106.19    0.437    35.34
2107.19    0.433    35.10
2108.19    0.429    34.85
2109.19    0.426    34.61
2110.19    0.422    34.35
2111.19    0.417    34.10
2112.19    0.413    33.83
2113.19    0.408    33.56
2114.19    0.404    33.29
2115.19    0.399    33.01
2116.19    0.394    32.72
2117.19    0.388    32.42
2118.19    0.383    32.11
2119.19    0.377    31.80
2120.19    0.371    31.48
2121.19    0.365    31.14
2122.19    0.359    30.80

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 17:13:13