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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:32:35

Orbital Elements for HU1168

WDS:	HU1168	WDS ID/Discoverer
P:	88.570	Orbital period (years)
a:	0.376	Semi-major axis (arcseconds)
i:	122.7	Inclination (degrees)
Ω:	127.8	Longitude of ascending node (degrees)
T:	1984.440	Epoch of periastron passage (year)
e:	0.599	Eccentricity
ω:	47.7	Longitude of periastron (degrees)
Start-Year:	1981.0	Year
End-Year:	2069.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1168

Position:	153700.37+642623.3	Epoch-2000 right ascension and declination
WDS-ID:	15370+6426	WDS designation
Discoverer Code:	HU1168	Discover designation and components
ADS number:	9730	Aitken Double Star catalog
HD number:	139905	HD catalog number
Hipparcos number:	76466	Hipparcos catalog number
V1:	9.48	Magnitude of the primary
V2:	9.73	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1997	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU1168

WDS 6th Orbit including measures of HU1168

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

Ephemeris of HU1168

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.490    281.1
-------------------------
1981.0     0.183    134.6
1982.0     0.170    126.6
1983.0     0.152    117.0
1984.0     0.129    104.3
1985.0     0.105     85.9
1986.0     0.090     59.0
1987.0     0.094     28.4
1988.0     0.114      4.7
1989.0     0.143    349.4
1990.0     0.175    339.5
1991.0     0.206    332.6
1992.0     0.235    327.4
1993.0     0.263    323.4
1994.0     0.289    320.2
1995.0     0.312    317.4
1996.0     0.334    315.0
1997.0     0.354    312.9
1998.0     0.372    311.0
1999.0     0.389    309.3
2000.0     0.405    307.7
2001.0     0.419    306.3
2002.0     0.431    304.9
2003.0     0.443    303.6
2004.0     0.453    302.4
2005.0     0.463    301.2
2006.0     0.471    300.0
2007.0     0.479    298.9
2008.0     0.485    297.9
2009.0     0.491    296.8
2010.0     0.496    295.8
2011.0     0.500    294.8
2012.0     0.503    293.8
2013.0     0.506    292.8
2014.0     0.508    291.9
2015.0     0.509    290.9
2016.0     0.510    289.9
2017.0     0.510    289.0
2018.0     0.509    288.0
2019.0     0.508    287.1
2020.0     0.506    286.1
2021.0     0.504    285.1
2022.0     0.501    284.1
2023.0     0.498    283.1
2024.0     0.494    282.1
2025.0     0.490    281.1
2026.0     0.485    280.1
2027.0     0.480    279.0
2028.0     0.475    277.9
2029.0     0.469    276.8
2030.0     0.463    275.6
2031.0     0.456    274.5
2032.0     0.449    273.3
2033.0     0.441    272.0
2034.0     0.434    270.7
2035.0     0.426    269.4
2036.0     0.417    268.0
2037.0     0.409    266.5
2038.0     0.400    265.0
2039.0     0.390    263.4
2040.0     0.381    261.7
2041.0     0.371    260.0
2042.0     0.362    258.1
2043.0     0.352    256.1
2044.0     0.342    254.1
2045.0     0.332    251.9
2046.0     0.321    249.6
2047.0     0.311    247.1
2048.0     0.301    244.4
2049.0     0.291    241.6
2050.0     0.281    238.5
2051.0     0.272    235.3
2052.0     0.262    231.8
2053.0     0.253    228.1
2054.0     0.245    224.1
2055.0     0.237    219.8
2056.0     0.230    215.2
2057.0     0.223    210.4
2058.0     0.218    205.3
2059.0     0.213    199.9
2060.0     0.209    194.3
2061.0     0.206    188.5
2062.0     0.204    182.6
2063.0     0.203    176.6
2064.0     0.202    170.6
2065.0     0.201    164.4
2066.0     0.200    158.2
2067.0     0.198    152.0
2068.0     0.194    145.5

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.