Double Star Calculator - Orbit

Orbital Elements for RST2937

WDS:	RST2937	WDS ID/Discoverer
P:	146.050	Orbital period (years)
a:	0.214	Semi-major axis (arcseconds)
i:	105.9	Inclination (degrees)
Ω:	173.6	Longitude of ascending node (degrees)
T:	2006.500	Epoch of periastron passage (year)
e:	0.809	Eccentricity
ω:	113.4	Longitude of periastron (degrees)
Start-Year:	1951.975	Year
End-Year:	2098.025	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST2937
Position:	150444.33-562518.1	Epoch-2000 right ascension and declination
WDS-ID:	15047-5625	WDS designation
Discoverer Code:	RST2937	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	133044	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.1	Magnitude of the primary
V2:	9.1	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	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:	Tok2015c	Reference

Double Star Orbit for RST2937

WDS 6th Orbit including measures of RST2937

-- 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 RST2937

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.073   295.07
--------------------------
1951.97    0.213   197.41
1952.97    0.215   197.01
1953.97    0.216   196.62
1954.97    0.217   196.23
1955.97    0.218   195.84
1956.97    0.218   195.46
1957.97    0.219   195.08
1958.97    0.220   194.70
1959.97    0.221   194.33
1960.97    0.221   193.96
1961.97    0.222   193.58
1962.97    0.222   193.21
1963.97    0.222   192.85
1964.97    0.222   192.48
1965.97    0.223   192.11
1966.97    0.223   191.74
1967.97    0.222   191.38
1968.97    0.222   191.01
1969.97    0.222   190.64
1970.97    0.221   190.27
1971.97    0.221   189.90
1972.97    0.220   189.52
1973.97    0.219   189.15
1974.97    0.218   188.77
1975.97    0.217   188.39
1976.97    0.216   188.00
1977.97    0.215   187.61
1978.97    0.213   187.21
1979.97    0.211   186.80
1980.97    0.209   186.39
1981.97    0.207   185.97
1982.97    0.205   185.55
1983.97    0.202   185.11
1984.97    0.200   184.66
1985.97    0.197   184.20
1986.97    0.193   183.72
1987.97    0.190   183.22
1988.97    0.186   182.71
1989.97    0.182   182.17
1990.97    0.177   181.60
1991.97    0.172   181.01
1992.97    0.167   180.37
1993.97    0.161   179.70
1994.97    0.154   178.96
1995.97    0.147   178.16
1996.97    0.139   177.28
1997.97    0.131   176.28
1998.97    0.121   175.13
1999.97    0.110   173.78
2000.97    0.098   172.10
2001.97    0.084   169.90
2002.97    0.068   166.73
2003.97    0.049   161.30
2004.97    0.027   147.74
2005.97    0.012    72.96
2006.97    0.029    10.54
2007.97    0.048   357.82
2008.97    0.060   351.56
2009.97    0.068   347.14
2010.97    0.073   343.48
2011.97    0.076   340.21
2012.97    0.078   337.14
2013.97    0.079   334.17
2014.97    0.079   331.26
2015.97    0.079   328.36
2016.97    0.079   325.44
2017.97    0.078   322.48
2018.97    0.077   319.48
2019.97    0.077   316.42
2020.97    0.076   313.31
2021.97    0.075   310.13
2022.97    0.075   306.89
2023.97    0.074   303.59
2024.97    0.073   300.24
2025.97    0.073   296.86
2026.97    0.073   293.45
2027.97    0.073   290.03
2028.97    0.073   286.60
2029.97    0.073   283.20
2030.97    0.074   279.83
2031.97    0.074   276.51
2032.97    0.075   273.25
2033.97    0.076   270.07
2034.97    0.077   266.97
2035.97    0.078   263.97
2036.97    0.080   261.07
2037.97    0.081   258.28
2038.97    0.083   255.60
2039.97    0.085   253.02
2040.97    0.087   250.56
2041.97    0.089   248.21
2042.97    0.091   245.97
2043.97    0.093   243.83
2044.97    0.096   241.79
2045.97    0.098   239.85
2046.97    0.100   238.00
2047.97    0.103   236.23
2048.97    0.105   234.55
2049.97    0.108   232.95
2050.97    0.110   231.42
2051.97    0.113   229.96
2052.97    0.116   228.57
2053.97    0.118   227.24
2054.97    0.121   225.96
2055.97    0.123   224.75
2056.97    0.126   223.58
2057.97    0.129   222.46
2058.97    0.131   221.38
2059.97    0.134   220.35
2060.97    0.137   219.36
2061.97    0.139   218.41
2062.97    0.142   217.49
2063.97    0.145   216.60
2064.97    0.147   215.75
2065.97    0.150   214.92
2066.97    0.152   214.13
2067.97    0.155   213.36
2068.97    0.157   212.61
2069.97    0.160   211.89
2070.97    0.162   211.19
2071.97    0.165   210.51
2072.97    0.167   209.85
2073.97    0.169   209.21
2074.97    0.172   208.58
2075.97    0.174   207.97
2076.97    0.176   207.38
2077.97    0.179   206.80
2078.97    0.181   206.24
2079.97    0.183   205.69
2080.97    0.185   205.15
2081.97    0.187   204.63
2082.97    0.189   204.12
2083.97    0.191   203.61
2084.97    0.193   203.12
2085.97    0.195   202.64
2086.97    0.197   202.16
2087.97    0.199   201.70
2088.97    0.200   201.24
2089.97    0.202   200.79
2090.97    0.204   200.35
2091.97    0.205   199.91
2092.97    0.207   199.48
2093.97    0.208   199.06
2094.97    0.210   198.65
2095.97    0.211   198.23
2096.97    0.212   197.83
2097.97    0.213   197.43

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 17:12:14