Double Star Calculator - Orbit

Orbital Elements for RST2134

WDS:	RST2134	WDS ID/Discoverer
P:	151.790	Orbital period (years)
a:	0.259	Semi-major axis (arcseconds)
i:	133.1	Inclination (degrees)
Ω:	22.2	Longitude of ascending node (degrees)
T:	1977.230	Epoch of periastron passage (year)
e:	0.258	Eccentricity
ω:	198.9	Longitude of periastron (degrees)
Start-Year:	1949.105	Year
End-Year:	2100.895	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST2134
Position:	200808.89-392929.6	Epoch-2000 right ascension and declination
WDS-ID:	20081-3929	WDS designation
Discoverer Code:	RST2134	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	190759	HD catalog number
Hipparcos number:	99185	Hipparcos catalog number
V1:	10.49	Magnitude of the primary
V2:	10.90	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2015	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Doc2016i	Reference

Double Star Orbit for RST2134

WDS 6th Orbit including measures of RST2134

-- 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 RST2134

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.289    37.49
--------------------------
1949.11    0.175   274.22
1950.11    0.174   270.77
1951.11    0.175   267.32
1952.11    0.175   263.88
1953.11    0.176   260.47
1954.11    0.177   257.08
1955.11    0.178   253.74
1956.11    0.179   250.44
1957.11    0.180   247.19
1958.11    0.182   243.99
1959.11    0.184   240.85
1960.11    0.185   237.76
1961.11    0.187   234.73
1962.11    0.189   231.75
1963.11    0.190   228.82
1964.11    0.191   225.93
1965.11    0.193   223.09
1966.11    0.194   220.27
1967.11    0.195   217.49
1968.11    0.195   214.73
1969.11    0.196   211.98
1970.11    0.196   209.23
1971.11    0.195   206.48
1972.11    0.195   203.73
1973.11    0.194   200.95
1974.11    0.193   198.13
1975.11    0.191   195.28
1976.11    0.189   192.38
1977.11    0.187   189.41
1978.11    0.185   186.37
1979.11    0.182   183.24
1980.11    0.179   180.01
1981.11    0.176   176.68
1982.11    0.173   173.23
1983.11    0.170   169.65
1984.11    0.166   165.93
1985.11    0.163   162.06
1986.11    0.160   158.06
1987.11    0.158   153.91
1988.11    0.155   149.61
1989.11    0.153   145.20
1990.11    0.151   140.67
1991.11    0.150   136.05
1992.11    0.150   131.38
1993.11    0.149   126.67
1994.11    0.150   121.97
1995.11    0.151   117.32
1996.11    0.152   112.74
1997.11    0.154   108.26
1998.11    0.157   103.92
1999.11    0.160    99.73
2000.11    0.163    95.71
2001.11    0.167    91.87
2002.11    0.171    88.20
2003.11    0.176    84.72
2004.11    0.181    81.42
2005.11    0.186    78.29
2006.11    0.191    75.32
2007.11    0.196    72.52
2008.11    0.201    69.86
2009.11    0.207    67.34
2010.11    0.212    64.94
2011.11    0.218    62.67
2012.11    0.223    60.51
2013.11    0.228    58.45
2014.11    0.234    56.48
2015.11    0.239    54.60
2016.11    0.244    52.80
2017.11    0.249    51.07
2018.11    0.254    49.41
2019.11    0.259    47.81
2020.11    0.263    46.27
2021.11    0.268    44.78
2022.11    0.272    43.34
2023.11    0.276    41.95
2024.11    0.280    40.59
2025.11    0.284    39.27
2026.11    0.288    37.99
2027.11    0.291    36.74
2028.11    0.295    35.51
2029.11    0.298    34.32
2030.11    0.301    33.15
2031.11    0.303    31.99
2032.11    0.306    30.86
2033.11    0.308    29.75
2034.11    0.311    28.65
2035.11    0.313    27.57
2036.11    0.314    26.50
2037.11    0.316    25.45
2038.11    0.317    24.40
2039.11    0.319    23.36
2040.11    0.320    22.33
2041.11    0.321    21.31
2042.11    0.321    20.29
2043.11    0.322    19.27
2044.11    0.322    18.26
2045.11    0.322    17.24
2046.11    0.322    16.23
2047.11    0.322    15.22
2048.11    0.321    14.20
2049.11    0.321    13.18
2050.11    0.320    12.16
2051.11    0.319    11.13
2052.11    0.318    10.10
2053.11    0.317     9.05
2054.11    0.315     8.00
2055.11    0.314     6.94
2056.11    0.312     5.86
2057.11    0.310     4.78
2058.11    0.308     3.67
2059.11    0.305     2.56
2060.11    0.303     1.42
2061.11    0.300     0.27
2062.11    0.298   359.10
2063.11    0.295   357.90
2064.11    0.292   356.68
2065.11    0.289   355.44
2066.11    0.286   354.16
2067.11    0.282   352.86
2068.11    0.279   351.53
2069.11    0.275   350.16
2070.11    0.272   348.76
2071.11    0.268   347.32
2072.11    0.264   345.84
2073.11    0.260   344.31
2074.11    0.256   342.74
2075.11    0.252   341.12
2076.11    0.248   339.44
2077.11    0.244   337.71
2078.11    0.240   335.92
2079.11    0.236   334.07
2080.11    0.232   332.15
2081.11    0.228   330.17
2082.11    0.224   328.11
2083.11    0.220   325.97
2084.11    0.216   323.75
2085.11    0.212   321.46
2086.11    0.208   319.07
2087.11    0.204   316.60
2088.11    0.201   314.04
2089.11    0.197   311.39
2090.11    0.194   308.65
2091.11    0.191   305.82
2092.11    0.188   302.89
2093.11    0.186   299.89
2094.11    0.183   296.80
2095.11    0.181   293.63
2096.11    0.179   290.40
2097.11    0.178   287.10
2098.11    0.176   283.75
2099.11    0.176   280.36
2100.11    0.175   276.93

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 18:11:59