Double Star Calculator - Orbit

Orbital Elements for STT53AB

WDS:	STT53AB	WDS ID/Discoverer
P:	114.300	Orbital period (years)
a:	0.71	Semi-major axis (arcseconds)
i:	121.7	Inclination (degrees)
Ω:	135.1	Longitude of ascending node (degrees)
T:	1931.800	Epoch of periastron passage (year)
e:	0.86	Eccentricity
ω:	70.9	Longitude of periastron (degrees)
Start-Year:	1967.85	Year
End-Year:	2082.15	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT53AB
Position:	031744.01+383821.1	Epoch-2000 right ascension and declination
WDS-ID:	03177+3838	WDS designation
Discoverer Code:	STT53AB	Discover designation and components
ADS number:	2446	Aitken Double Star catalog
HD number:	20347	HD catalog number
Hipparcos number:	15329	Hipparcos catalog number
V1:	7.73	Magnitude of the primary
V2:	8.50	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:	Rbr2018	Reference

Double Star Orbit for STT53AB

WDS 6th Orbit including measures of STT53AB

-- 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 STT53AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.477   218.92
--------------------------
1967.85    0.806   272.28
1968.85    0.808   271.62
1969.85    0.810   270.97
1970.85    0.812   270.33
1971.85    0.813   269.68
1972.85    0.814   269.04
1973.85    0.815   268.40
1974.85    0.815   267.76
1975.85    0.815   267.11
1976.85    0.814   266.47
1977.85    0.813   265.83
1978.85    0.812   265.19
1979.85    0.811   264.54
1980.85    0.809   263.89
1981.85    0.807   263.24
1982.85    0.805   262.58
1983.85    0.802   261.92
1984.85    0.800   261.26
1985.85    0.797   260.59
1986.85    0.793   259.92
1987.85    0.790   259.24
1988.85    0.786   258.55
1989.85    0.782   257.86
1990.85    0.777   257.16
1991.85    0.773   256.45
1992.85    0.768   255.73
1993.85    0.763   255.01
1994.85    0.757   254.27
1995.85    0.752   253.52
1996.85    0.746   252.76
1997.85    0.740   251.99
1998.85    0.733   251.20
1999.85    0.727   250.41
2000.85    0.720   249.59
2001.85    0.713   248.76
2002.85    0.706   247.92
2003.85    0.699   247.06
2004.85    0.691   246.17
2005.85    0.683   245.27
2006.85    0.675   244.35
2007.85    0.667   243.40
2008.85    0.659   242.44
2009.85    0.650   241.44
2010.85    0.641   240.42
2011.85    0.632   239.37
2012.85    0.623   238.29
2013.85    0.613   237.17
2014.85    0.604   236.02
2015.85    0.594   234.83
2016.85    0.584   233.60
2017.85    0.573   232.33
2018.85    0.563   231.01
2019.85    0.552   229.64
2020.85    0.541   228.22
2021.85    0.530   226.74
2022.85    0.519   225.19
2023.85    0.508   223.58
2024.85    0.496   221.89
2025.85    0.484   220.12
2026.85    0.473   218.26
2027.85    0.460   216.30
2028.85    0.448   214.24
2029.85    0.435   212.05
2030.85    0.423   209.74
2031.85    0.410   207.28
2032.85    0.397   204.67
2033.85    0.383   201.86
2034.85    0.369   198.86
2035.85    0.355   195.61
2036.85    0.341   192.09
2037.85    0.326   188.26
2038.85    0.310   184.04
2039.85    0.293   179.35
2040.85    0.275   174.06
2041.85    0.254   167.96
2042.85    0.229   160.67
2043.85    0.198   151.35
2044.85    0.151   137.41
2045.85    0.077   102.32
2046.85    0.087   352.82
2047.85    0.177   325.53
2048.85    0.249   315.99
2049.85    0.307   310.45
2050.85    0.355   306.56
2051.85    0.397   303.55
2052.85    0.434   301.08
2053.85    0.466   298.97
2054.85    0.496   297.13
2055.85    0.522   295.49
2056.85    0.547   294.00
2057.85    0.569   292.63
2058.85    0.590   291.36
2059.85    0.609   290.18
2060.85    0.626   289.06
2061.85    0.643   288.00
2062.85    0.658   287.00
2063.85    0.672   286.04
2064.85    0.685   285.11
2065.85    0.698   284.22
2066.85    0.709   283.36
2067.85    0.720   282.53
2068.85    0.730   281.72
2069.85    0.739   280.93
2070.85    0.747   280.16
2071.85    0.755   279.40
2072.85    0.763   278.67
2073.85    0.769   277.94
2074.85    0.775   277.23
2075.85    0.781   276.52
2076.85    0.786   275.83
2077.85    0.791   275.15
2078.85    0.795   274.47
2079.85    0.799   273.80
2080.85    0.802   273.13
2081.85    0.805   272.48

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 15:09:19