Double Star Calculator - Orbit

Orbital Elements for HU1173
WDS: HU1173 WDS ID/Discoverer
P: 110.500 Orbital period (years)
a: 0.154 Semi-major axis (arcseconds)
i: 38.0 Inclination (degrees)
Ω: 47.0 Longitude of ascending node (degrees)
T: 1966.500 Epoch of periastron passage (year)
e: 0.75 Eccentricity
ω: 208.0 Longitude of periastron (degrees)
Start-Year: 1969.75 Year
End-Year: 2080.25 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU1173
Position: 163003.67+335311.1 Epoch-2000 right ascension and declination
WDS-ID: 16301+3353 WDS designation
Discoverer Code: HU1173 Discover designation and components
ADS number: 10085 Aitken Double Star catalog
HD number: 148909 HD catalog number
Hipparcos number: 80806 Hipparcos catalog number
V1: 8.91 Magnitude of the primary
V2: 9.45 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 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: Hei1997 Reference

Double Star Orbit for HU1173



WDS 6th Orbit including measures of HU1173

-- 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 HU1173
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.254    72.65
--------------------------
1969.75    0.049   340.25
1970.75    0.059   354.17
1971.75    0.070     3.80
1972.75    0.081    10.84
1973.75    0.092    16.26
1974.75    0.101    20.59
1975.75    0.111    24.17
1976.75    0.120    27.21
1977.75    0.128    29.83
1978.75    0.136    32.13
1979.75    0.144    34.18
1980.75    0.151    36.04
1981.75    0.158    37.72
1982.75    0.165    39.27
1983.75    0.171    40.70
1984.75    0.177    42.04
1985.75    0.182    43.29
1986.75    0.188    44.46
1987.75    0.193    45.57
1988.75    0.198    46.63
1989.75    0.202    47.63
1990.75    0.207    48.60
1991.75    0.211    49.52
1992.75    0.215    50.41
1993.75    0.219    51.26
1994.75    0.222    52.09
1995.75    0.226    52.90
1996.75    0.229    53.68
1997.75    0.232    54.44
1998.75    0.235    55.18
1999.75    0.237    55.90
2000.75    0.240    56.61
2001.75    0.242    57.30
2002.75    0.244    57.98
2003.75    0.246    58.65
2004.75    0.248    59.31
2005.75    0.250    59.96
2006.75    0.251    60.60
2007.75    0.253    61.23
2008.75    0.254    61.86
2009.75    0.255    62.48
2010.75    0.256    63.10
2011.75    0.257    63.71
2012.75    0.258    64.32
2013.75    0.258    64.92
2014.75    0.259    65.53
2015.75    0.259    66.13
2016.75    0.259    66.73
2017.75    0.259    67.33
2018.75    0.259    67.93
2019.75    0.259    68.53
2020.75    0.258    69.13
2021.75    0.258    69.73
2022.75    0.257    70.34
2023.75    0.257    70.95
2024.75    0.256    71.56
2025.75    0.255    72.18
2026.75    0.254    72.80
2027.75    0.252    73.43
2028.75    0.251    74.07
2029.75    0.250    74.71
2030.75    0.248    75.36
2031.75    0.246    76.02
2032.75    0.244    76.69
2033.75    0.242    77.37
2034.75    0.240    78.06
2035.75    0.238    78.76
2036.75    0.236    79.48
2037.75    0.233    80.21
2038.75    0.231    80.96
2039.75    0.228    81.73
2040.75    0.225    82.52
2041.75    0.222    83.32
2042.75    0.219    84.15
2043.75    0.215    85.01
2044.75    0.212    85.89
2045.75    0.208    86.80
2046.75    0.205    87.75
2047.75    0.201    88.72
2048.75    0.197    89.74
2049.75    0.193    90.81
2050.75    0.188    91.91
2051.75    0.184    93.08
2052.75    0.179    94.30
2053.75    0.175    95.58
2054.75    0.170    96.94
2055.75    0.165    98.38
2056.75    0.159    99.92
2057.75    0.154   101.55
2058.75    0.149   103.31
2059.75    0.143   105.21
2060.75    0.137   107.27
2061.75    0.131   109.52
2062.75    0.125   111.99
2063.75    0.118   114.71
2064.75    0.112   117.76
2065.75    0.105   121.18
2066.75    0.098   125.07
2067.75    0.092   129.54
2068.75    0.085   134.74
2069.75    0.078   140.86
2070.75    0.071   148.16
2071.75    0.064   156.99
2072.75    0.058   167.78
2073.75    0.052   181.02
2074.75    0.047   197.32
2075.75    0.042   217.42
2076.75    0.038   242.52
2077.75    0.035   273.43
2078.75    0.037   305.61
2079.75    0.044   330.87






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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 17:28:22



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