Double Star Calculator - Orbit

Orbital Elements for A262
WDS: A262 WDS ID/Discoverer
P: 108.200 Orbital period (years)
a: 0.143 Semi-major axis (arcseconds)
i: 50.4 Inclination (degrees)
Ω: 136.2 Longitude of ascending node (degrees)
T: 1959.100 Epoch of periastron passage (year)
e: 0.83 Eccentricity
ω: 122.0 Longitude of periastron (degrees)
Start-Year: 1970.9 Year
End-Year: 2079.1 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A262
Position: 190718.39+243133.0 Epoch-2000 right ascension and declination
WDS-ID: 19073+2432 WDS designation
Discoverer Code: A262 Discover designation and components
ADS number: 12057 Aitken Double Star catalog
HD number: 178355 HD catalog number
Hipparcos number: 93905 Hipparcos catalog number
V1: 9.27 Magnitude of the primary
V2: 9.72 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 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: Zir2012b Reference

Double Star Orbit for A262



WDS 6th Orbit including measures of A262

-- 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 A262
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.202    98.56
--------------------------
1970.90    0.087    40.31
1971.90    0.091    43.34
1972.90    0.096    46.11
1973.90    0.100    48.65
1974.90    0.104    50.98
1975.90    0.108    53.14
1976.90    0.112    55.15
1977.90    0.116    57.03
1978.90    0.119    58.78
1979.90    0.123    60.43
1980.90    0.126    61.99
1981.90    0.130    63.46
1982.90    0.133    64.85
1983.90    0.137    66.18
1984.90    0.140    67.44
1985.90    0.143    68.65
1986.90    0.146    69.81
1987.90    0.149    70.91
1988.90    0.152    71.98
1989.90    0.155    73.01
1990.90    0.158    74.00
1991.90    0.160    74.95
1992.90    0.163    75.88
1993.90    0.165    76.78
1994.90    0.168    77.65
1995.90    0.170    78.49
1996.90    0.173    79.32
1997.90    0.175    80.12
1998.90    0.177    80.90
1999.90    0.179    81.67
2000.90    0.181    82.41
2001.90    0.183    83.15
2002.90    0.184    83.86
2003.90    0.186    84.57
2004.90    0.188    85.26
2005.90    0.189    85.94
2006.90    0.191    86.61
2007.90    0.192    87.27
2008.90    0.193    87.92
2009.90    0.195    88.56
2010.90    0.196    89.20
2011.90    0.197    89.82
2012.90    0.198    90.44
2013.90    0.199    91.06
2014.90    0.199    91.67
2015.90    0.200    92.28
2016.90    0.201    92.88
2017.90    0.201    93.48
2018.90    0.202    94.07
2019.90    0.202    94.66
2020.90    0.202    95.26
2021.90    0.202    95.85
2022.90    0.203    96.44
2023.90    0.203    97.03
2024.90    0.202    97.62
2025.90    0.202    98.21
2026.90    0.202    98.80
2027.90    0.201    99.40
2028.90    0.201    99.99
2029.90    0.200   100.60
2030.90    0.199   101.20
2031.90    0.198   101.81
2032.90    0.197   102.43
2033.90    0.196   103.06
2034.90    0.195   103.69
2035.90    0.194   104.33
2036.90    0.192   104.98
2037.90    0.190   105.64
2038.90    0.189   106.31
2039.90    0.187   107.00
2040.90    0.185   107.70
2041.90    0.182   108.42
2042.90    0.180   109.16
2043.90    0.177   109.91
2044.90    0.175   110.70
2045.90    0.172   111.50
2046.90    0.168   112.34
2047.90    0.165   113.21
2048.90    0.161   114.12
2049.90    0.157   115.07
2050.90    0.153   116.07
2051.90    0.149   117.13
2052.90    0.144   118.26
2053.90    0.139   119.46
2054.90    0.134   120.76
2055.90    0.128   122.17
2056.90    0.122   123.73
2057.90    0.115   125.45
2058.90    0.108   127.41
2059.90    0.100   129.66
2060.90    0.091   132.34
2061.90    0.081   135.62
2062.90    0.070   139.87
2063.90    0.058   145.82
2064.90    0.043   155.41
2065.90    0.027   175.62
2066.90    0.016   237.18
2067.90    0.026   301.90
2068.90    0.036   327.72
2069.90    0.043   343.20
2070.90    0.049   354.62
2071.90    0.054     3.74
2072.90    0.059    11.32
2073.90    0.064    17.75
2074.90    0.068    23.29
2075.90    0.073    28.14
2076.90    0.077    32.42
2077.90    0.082    36.24
2078.90    0.086    39.66






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 18:00:22



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