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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:30:34

Orbital Elements for HDS2167

WDS:	HDS2167	WDS ID/Discoverer
P:	82.300	Orbital period (years)
a:	0.44	Semi-major axis (arcseconds)
i:	108.9	Inclination (degrees)
Ω:	303.5	Longitude of ascending node (degrees)
T:	2008.370	Epoch of periastron passage (year)
e:	0.422	Eccentricity
ω:	157.1	Longitude of periastron (degrees)
Start-Year:	1984.0	Year
End-Year:	2066.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2167

Position:	152430.97-132215.1	Epoch-2000 right ascension and declination
WDS-ID:	15245-1322	WDS designation
Discoverer Code:	HDS2167	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	75416	Hipparcos catalog number
V1:	11.07	Magnitude of the primary
V2:	11.24	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS2167

WDS 6th Orbit including measures of HDS2167

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

Ephemeris of HDS2167

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.162      9.9
-------------------------
1984.0     0.537    299.2
1985.0     0.522    298.3
1986.0     0.506    297.4
1987.0     0.489    296.4
1988.0     0.469    295.3
1989.0     0.448    294.1
1990.0     0.426    292.8
1991.0     0.402    291.4
1992.0     0.376    289.7
1993.0     0.349    287.8
1994.0     0.320    285.6
1995.0     0.290    282.9
1996.0     0.259    279.6
1997.0     0.226    275.4
1998.0     0.194    269.7
1999.0     0.162    261.8
2000.0     0.133    250.2
2001.0     0.110    233.0
2002.0     0.100    210.0
2003.0     0.106    185.9
2004.0     0.126    167.0
2005.0     0.152    154.0
2006.0     0.180    144.9
2007.0     0.207    138.2
2008.0     0.229    133.0
2009.0     0.247    128.6
2010.0     0.258    124.7
2011.0     0.263    121.1
2012.0     0.262    117.5
2013.0     0.256    113.8
2014.0     0.246    109.8
2015.0     0.232    105.5
2016.0     0.216    100.5
2017.0     0.198     94.7
2018.0     0.181     87.8
2019.0     0.165     79.4
2020.0     0.152     69.5
2021.0     0.142     57.9
2022.0     0.138     45.2
2023.0     0.141     32.3
2024.0     0.149     20.3
2025.0     0.162      9.9
2026.0     0.178      1.3
2027.0     0.197    354.2
2028.0     0.218    348.4
2029.0     0.240    343.7
2030.0     0.262    339.7
2031.0     0.284    336.4
2032.0     0.307    333.5
2033.0     0.328    331.0
2034.0     0.350    328.9
2035.0     0.371    327.0
2036.0     0.391    325.2
2037.0     0.411    323.7
2038.0     0.430    322.3
2039.0     0.448    321.0
2040.0     0.465    319.8
2041.0     0.481    318.7
2042.0     0.497    317.6
2043.0     0.511    316.7
2044.0     0.525    315.7
2045.0     0.538    314.9
2046.0     0.549    314.0
2047.0     0.560    313.2
2048.0     0.569    312.4
2049.0     0.578    311.7
2050.0     0.585    310.9
2051.0     0.591    310.2
2052.0     0.597    309.5
2053.0     0.601    308.8
2054.0     0.604    308.1
2055.0     0.605    307.5
2056.0     0.606    306.8
2057.0     0.605    306.1
2058.0     0.603    305.4
2059.0     0.600    304.7
2060.0     0.596    304.0
2061.0     0.590    303.3
2062.0     0.583    302.6
2063.0     0.575    301.9
2064.0     0.565    301.1
2065.0     0.554    300.3

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.