Double Star Calculator - Orbit

Orbital Elements for RST3756AB

WDS:	RST3756AB	WDS ID/Discoverer
P:	121.300	Orbital period (years)
a:	0.982	Semi-major axis (arcseconds)
i:	152.3	Inclination (degrees)
Ω:	151.4	Longitude of ascending node (degrees)
T:	1955.700	Epoch of periastron passage (year)
e:	0.176	Eccentricity
ω:	178.7	Longitude of periastron (degrees)
Start-Year:	1964.35	Year
End-Year:	2085.65	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST3756AB
Position:	114703.83-114926.5	Epoch-2000 right ascension and declination
WDS-ID:	11471-1149	WDS designation
Discoverer Code:	RST3756AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	102392	HD catalog number
Hipparcos number:	57494	Hipparcos catalog number
V1:	9.21	Magnitude of the primary
V2:	12.71	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2021f	Reference

Double Star Orbit for RST3756AB

WDS 6th Orbit including measures of RST3756AB

-- 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 RST3756AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.123   133.21
--------------------------
1964.35    0.803   299.43
1965.35    0.802   295.56
1966.35    0.802   291.68
1967.35    0.801   287.80
1968.35    0.801   283.91
1969.35    0.802   280.03
1970.35    0.803   276.15
1971.35    0.804   272.28
1972.35    0.806   268.44
1973.35    0.809   264.61
1974.35    0.813   260.82
1975.35    0.818   257.07
1976.35    0.823   253.37
1977.35    0.829   249.71
1978.35    0.836   246.11
1979.35    0.843   242.57
1980.35    0.851   239.09
1981.35    0.860   235.69
1982.35    0.870   232.35
1983.35    0.879   229.09
1984.35    0.890   225.90
1985.35    0.901   222.79
1986.35    0.912   219.75
1987.35    0.923   216.79
1988.35    0.935   213.90
1989.35    0.947   211.08
1990.35    0.959   208.33
1991.35    0.970   205.65
1992.35    0.982   203.03
1993.35    0.994   200.48
1994.35    1.006   197.99
1995.35    1.017   195.55
1996.35    1.029   193.16
1997.35    1.040   190.83
1998.35    1.050   188.55
1999.35    1.061   186.31
2000.35    1.070   184.11
2001.35    1.080   181.95
2002.35    1.089   179.83
2003.35    1.097   177.74
2004.35    1.105   175.69
2005.35    1.113   173.66
2006.35    1.120   171.66
2007.35    1.126   169.68
2008.35    1.132   167.73
2009.35    1.137   165.79
2010.35    1.142   163.87
2011.35    1.145   161.96
2012.35    1.149   160.06
2013.35    1.151   158.18
2014.35    1.153   156.30
2015.35    1.154   154.42
2016.35    1.155   152.55
2017.35    1.155   150.68
2018.35    1.154   148.81
2019.35    1.152   146.93
2020.35    1.150   145.05
2021.35    1.147   143.16
2022.35    1.144   141.26
2023.35    1.140   139.35
2024.35    1.135   137.42
2025.35    1.130   135.47
2026.35    1.124   133.51
2027.35    1.117   131.52
2028.35    1.110   129.51
2029.35    1.102   127.47
2030.35    1.094   125.40
2031.35    1.085   123.30
2032.35    1.076   121.16
2033.35    1.066   118.99
2034.35    1.056   116.77
2035.35    1.045   114.51
2036.35    1.034   112.20
2037.35    1.023   109.85
2038.35    1.011   107.44
2039.35    1.000   104.97
2040.35    0.988   102.44
2041.35    0.976    99.85
2042.35    0.964    97.20
2043.35    0.951    94.48
2044.35    0.939    91.69
2045.35    0.927    88.82
2046.35    0.915    85.89
2047.35    0.904    82.87
2048.35    0.893    79.78
2049.35    0.882    76.61
2050.35    0.871    73.36
2051.35    0.861    70.04
2052.35    0.852    66.64
2053.35    0.843    63.17
2054.35    0.835    59.63
2055.35    0.828    56.02
2056.35    0.821    52.35
2057.35    0.816    48.63
2058.35    0.811    44.85
2059.35    0.806    41.03
2060.35    0.803    37.18
2061.35    0.800    33.30
2062.35    0.799    29.40
2063.35    0.797    25.48
2064.35    0.797    21.55
2065.35    0.797    17.62
2066.35    0.797    13.69
2067.35    0.798     9.77
2068.35    0.799     5.86
2069.35    0.800     1.96
2070.35    0.802   358.07
2071.35    0.803   354.20
2072.35    0.805   350.34
2073.35    0.806   346.50
2074.35    0.807   342.67
2075.35    0.808   338.84
2076.35    0.809   335.03
2077.35    0.809   331.22
2078.35    0.809   327.41
2079.35    0.809   323.60
2080.35    0.808   319.79
2081.35    0.808   315.97
2082.35    0.807   312.14
2083.35    0.806   308.30
2084.35    0.805   304.45
2085.35    0.803   300.59

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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 16:41:25