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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:45:53

Orbital Elements for KUI39

WDS:	KUI39	WDS ID/Discoverer
P:	73.170	Orbital period (years)
a:	0.592	Semi-major axis (arcseconds)
i:	137.8	Inclination (degrees)
Ω:	63.5	Longitude of ascending node (degrees)
T:	2020.480	Epoch of periastron passage (year)
e:	0.463	Eccentricity
ω:	67.7	Longitude of periastron (degrees)
Start-Year:	1989.0	Year
End-Year:	2061.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KUI39

Position:	091730.49+771440.6	Epoch-2000 right ascension and declination
WDS-ID:	09175+7715	WDS designation
Discoverer Code:	KUI39	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	45593	Hipparcos catalog number
V1:	10.92	Magnitude of the primary
V2:	11.04	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1991	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for KUI39

WDS 6th Orbit including measures of KUI39

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

Ephemeris of KUI39

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.322    286.8
-------------------------
1989.0     0.643    169.2
1990.0     0.636    166.5
1991.0     0.628    163.6
1992.0     0.621    160.7
1993.0     0.613    157.8
1994.0     0.606    154.7
1995.0     0.598    151.6
1996.0     0.591    148.4
1997.0     0.584    145.1
1998.0     0.576    141.7
1999.0     0.569    138.3
2000.0     0.562    134.8
2001.0     0.556    131.1
2002.0     0.549    127.4
2003.0     0.542    123.6
2004.0     0.535    119.7
2005.0     0.528    115.7
2006.0     0.521    111.6
2007.0     0.513    107.3
2008.0     0.504    103.0
2009.0     0.495     98.4
2010.0     0.484     93.7
2011.0     0.472     88.8
2012.0     0.459     83.5
2013.0     0.443     78.0
2014.0     0.424     71.9
2015.0     0.402     65.3
2016.0     0.376     57.8
2017.0     0.348     49.2
2018.0     0.316     38.9
2019.0     0.285     26.3
2020.0     0.259     10.9
2021.0     0.242    352.7
2022.0     0.241    333.1
2023.0     0.257    314.7
2024.0     0.286    299.2
2025.0     0.322    286.8
2026.0     0.360    277.0
2027.0     0.399    269.1
2028.0     0.436    262.6
2029.0     0.471    257.1
2030.0     0.503    252.3
2031.0     0.532    248.1
2032.0     0.559    244.3
2033.0     0.582    240.8
2034.0     0.604    237.6
2035.0     0.623    234.6
2036.0     0.640    231.8
2037.0     0.654    229.1
2038.0     0.667    226.5
2039.0     0.678    224.0
2040.0     0.687    221.5
2041.0     0.695    219.2
2042.0     0.701    216.8
2043.0     0.706    214.6
2044.0     0.710    212.3
2045.0     0.713    210.1
2046.0     0.714    207.8
2047.0     0.715    205.6
2048.0     0.714    203.4
2049.0     0.713    201.2
2050.0     0.711    199.0
2051.0     0.708    196.7
2052.0     0.705    194.4
2053.0     0.700    192.1
2054.0     0.696    189.8
2055.0     0.691    187.5
2056.0     0.685    185.1
2057.0     0.679    182.6
2058.0     0.673    180.2
2059.0     0.666    177.6
2060.0     0.659    175.0

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.