Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:05:46

Orbital Elements for STT234

WDS:	STT234	WDS ID/Discoverer
P:	86.860	Orbital period (years)
a:	0.381	Semi-major axis (arcseconds)
i:	56.6	Inclination (degrees)
Ω:	336.4	Longitude of ascending node (degrees)
T:	1967.890	Epoch of periastron passage (year)
e:	0.356	Eccentricity
ω:	29.8	Longitude of periastron (degrees)
Start-Year:	1982.0	Year
End-Year:	2068.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT234

Position:	113049.91+411712.7	Epoch-2000 right ascension and declination
WDS-ID:	11308+4117	WDS designation
Discoverer Code:	STT234	Discover designation and components
ADS number:	8189	Aitken Double Star catalog
HD number:	100018	HD catalog number
Hipparcos number:	56165	Hipparcos catalog number
V1:	7.45	Magnitude of the primary
V2:	8.13	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2000	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for STT234

WDS 6th Orbit including measures of STT234

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of STT234

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.332    200.1
-------------------------
1982.0     0.271    122.6
1983.0     0.291    126.6
1984.0     0.310    130.0
1985.0     0.329    133.0
1986.0     0.347    135.7
1987.0     0.364    138.2
1988.0     0.380    140.4
1989.0     0.395    142.5
1990.0     0.409    144.4
1991.0     0.422    146.2
1992.0     0.434    147.9
1993.0     0.444    149.5
1994.0     0.454    151.0
1995.0     0.463    152.5
1996.0     0.470    153.9
1997.0     0.477    155.3
1998.0     0.482    156.6
1999.0     0.487    158.0
2000.0     0.490    159.2
2001.0     0.493    160.5
2002.0     0.495    161.8
2003.0     0.496    163.1
2004.0     0.496    164.3
2005.0     0.495    165.6
2006.0     0.493    166.8
2007.0     0.490    168.1
2008.0     0.487    169.4
2009.0     0.483    170.7
2010.0     0.478    172.1
2011.0     0.472    173.5
2012.0     0.466    174.9
2013.0     0.459    176.3
2014.0     0.451    177.8
2015.0     0.442    179.4
2016.0     0.433    181.0
2017.0     0.424    182.7
2018.0     0.414    184.4
2019.0     0.403    186.3
2020.0     0.392    188.2
2021.0     0.381    190.3
2022.0     0.369    192.5
2023.0     0.357    194.9
2024.0     0.344    197.4
2025.0     0.332    200.1
2026.0     0.319    203.0
2027.0     0.307    206.2
2028.0     0.294    209.6
2029.0     0.282    213.3
2030.0     0.270    217.4
2031.0     0.259    221.8
2032.0     0.249    226.6
2033.0     0.240    231.8
2034.0     0.232    237.4
2035.0     0.225    243.3
2036.0     0.220    249.5
2037.0     0.217    256.0
2038.0     0.215    262.6
2039.0     0.216    269.3
2040.0     0.218    275.9
2041.0     0.221    282.3
2042.0     0.226    288.6
2043.0     0.231    294.5
2044.0     0.237    300.1
2045.0     0.243    305.5
2046.0     0.249    310.6
2047.0     0.254    315.5
2048.0     0.257    320.2
2049.0     0.259    324.9
2050.0     0.259    329.5
2051.0     0.256    334.1
2052.0     0.251    338.9
2053.0     0.243    344.0
2054.0     0.233    349.4
2055.0     0.220    355.5
2056.0     0.206      2.3
2057.0     0.191     10.2
2058.0     0.177     19.4
2059.0     0.165     30.1
2060.0     0.156     42.1
2061.0     0.153     55.1
2062.0     0.156     68.1
2063.0     0.165     80.2
2064.0     0.178     90.8
2065.0     0.194     99.7
2066.0     0.213    107.2
2067.0     0.233    113.5

Disclaimer

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.