Double Star Calculator - Orbit

Orbital Elements for STT149

WDS:	STT149	WDS ID/Discoverer
P:	118.900	Orbital period (years)
a:	0.85	Semi-major axis (arcseconds)
i:	112.1	Inclination (degrees)
Ω:	73.8	Longitude of ascending node (degrees)
T:	1923.200	Epoch of periastron passage (year)
e:	0.727	Eccentricity
ω:	277.7	Longitude of periastron (degrees)
Start-Year:	1965.55	Year
End-Year:	2084.45	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT149
Position:	063626.26+271642.2	Epoch-2000 right ascension and declination
WDS-ID:	06364+2717	WDS designation
Discoverer Code:	STT149	Discover designation and components
ADS number:	5234	Aitken Double Star catalog
HD number:	46780	HD catalog number
Hipparcos number:	31568	Hipparcos catalog number
V1:	7.14	Magnitude of the primary
V2:	8.97	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1991	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Hei1993d	Reference

Double Star Orbit for STT149

WDS 6th Orbit including measures of STT149

-- 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 STT149

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.687   270.27
--------------------------
1965.55    0.530   356.15
1966.55    0.531   354.14
1967.55    0.532   352.14
1968.55    0.533   350.15
1969.55    0.535   348.16
1970.55    0.537   346.20
1971.55    0.539   344.24
1972.55    0.541   342.30
1973.55    0.544   340.38
1974.55    0.547   338.49
1975.55    0.550   336.61
1976.55    0.554   334.76
1977.55    0.558   332.93
1978.55    0.562   331.13
1979.55    0.567   329.35
1980.55    0.571   327.61
1981.55    0.576   325.89
1982.55    0.581   324.20
1983.55    0.586   322.54
1984.55    0.592   320.91
1985.55    0.597   319.31
1986.55    0.603   317.74
1987.55    0.609   316.20
1988.55    0.614   314.69
1989.55    0.620   313.21
1990.55    0.626   311.75
1991.55    0.632   310.33
1992.55    0.639   308.93
1993.55    0.645   307.55
1994.55    0.651   306.21
1995.55    0.657   304.88
1996.55    0.663   303.59
1997.55    0.669   302.31
1998.55    0.674   301.06
1999.55    0.680   299.83
2000.55    0.686   298.61
2001.55    0.691   297.42
2002.55    0.696   296.25
2003.55    0.701   295.09
2004.55    0.706   293.95
2005.55    0.711   292.82
2006.55    0.715   291.71
2007.55    0.719   290.62
2008.55    0.723   289.53
2009.55    0.726   288.45
2010.55    0.729   287.39
2011.55    0.732   286.33
2012.55    0.734   285.28
2013.55    0.736   284.23
2014.55    0.737   283.19
2015.55    0.737   282.15
2016.55    0.737   281.11
2017.55    0.736   280.06
2018.55    0.735   279.02
2019.55    0.732   277.97
2020.55    0.729   276.91
2021.55    0.725   275.84
2022.55    0.720   274.76
2023.55    0.714   273.66
2024.55    0.706   272.54
2025.55    0.697   271.39
2026.55    0.686   270.21
2027.55    0.674   268.99
2028.55    0.660   267.72
2029.55    0.644   266.39
2030.55    0.625   264.99
2031.55    0.603   263.49
2032.55    0.578   261.87
2033.55    0.550   260.10
2034.55    0.516   258.11
2035.55    0.478   255.83
2036.55    0.433   253.10
2037.55    0.379   249.67
2038.55    0.317   244.98
2039.55    0.243   237.68
2040.55    0.161   223.28
2041.55    0.093   183.06
2042.55    0.116   119.49
2043.55    0.194    93.99
2044.55    0.269    83.26
2045.55    0.331    76.95
2046.55    0.380    72.48
2047.55    0.419    68.94
2048.55    0.450    65.96
2049.55    0.475    63.32
2050.55    0.495    60.92
2051.55    0.512    58.70
2052.55    0.525    56.59
2053.55    0.535    54.58
2054.55    0.543    52.64
2055.55    0.550    50.75
2056.55    0.555    48.90
2057.55    0.558    47.07
2058.55    0.561    45.26
2059.55    0.562    43.47
2060.55    0.563    41.69
2061.55    0.563    39.90
2062.55    0.563    38.12
2063.55    0.562    36.33
2064.55    0.560    34.54
2065.55    0.559    32.73
2066.55    0.557    30.91
2067.55    0.555    29.08
2068.55    0.553    27.24
2069.55    0.550    25.38
2070.55    0.548    23.51
2071.55    0.546    21.62
2072.55    0.543    19.71
2073.55    0.541    17.79
2074.55    0.539    15.85
2075.55    0.537    13.90
2076.55    0.536    11.94
2077.55    0.534     9.96
2078.55    0.533     7.98
2079.55    0.532     5.98
2080.55    0.531     3.98
2081.55    0.530     1.98
2082.55    0.530   359.97
2083.55    0.530   357.95

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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 15:48:26