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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:15:13

Orbital Elements for KUI99AB

WDS:	KUI99AB	WDS ID/Discoverer
P:	38.679	Orbital period (years)
a:	0.855	Semi-major axis (arcseconds)
i:	87.4	Inclination (degrees)
Ω:	127.6	Longitude of ascending node (degrees)
T:	2016.110	Epoch of periastron passage (year)
e:	0.118	Eccentricity
ω:	233.4	Longitude of periastron (degrees)
Start-Year:	2006.0	Year
End-Year:	2044.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KUI99AB

Position:	203937.71+045819.3	Epoch-2000 right ascension and declination
WDS-ID:	20396+0458	WDS designation
Discoverer Code:	KUI99AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	196795	HD catalog number
Hipparcos number:	101955	Hipparcos catalog number
V1:	8.28	Magnitude of the primary
V2:	9.63	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2016	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for KUI99AB

WDS 6th Orbit including measures of KUI99AB

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

Ephemeris of KUI99AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.738    126.1
-------------------------
2006.0     0.516    304.0
2007.0     0.608    305.0
2008.0     0.685    305.7
2009.0     0.743    306.3
2010.0     0.779    306.9
2011.0     0.791    307.4
2012.0     0.777    307.9
2013.0     0.737    308.4
2014.0     0.670    309.0
2015.0     0.578    309.8
2016.0     0.464    310.9
2017.0     0.333    312.9
2018.0     0.190    317.7
2019.0     0.050    351.7
2020.0     0.122    111.0
2021.0     0.268    120.3
2022.0     0.407    123.1
2023.0     0.533    124.6
2024.0     0.644    125.4
2025.0     0.738    126.1
2026.0     0.811    126.6
2027.0     0.865    127.0
2028.0     0.898    127.4
2029.0     0.911    127.8
2030.0     0.904    128.2
2031.0     0.879    128.5
2032.0     0.836    129.0
2033.0     0.776    129.4
2034.0     0.702    130.0
2035.0     0.614    130.7
2036.0     0.515    131.7
2037.0     0.407    133.1
2038.0     0.291    135.7
2039.0     0.171    141.9
2040.0     0.058    174.5
2041.0     0.096    281.9
2042.0     0.215    296.8
2043.0     0.334    301.1

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.