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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:28:45

Orbital Elements for KUI108

WDS:	KUI108	WDS ID/Discoverer
P:	26.490	Orbital period (years)
a:	0.153	Semi-major axis (arcseconds)
i:	142.4	Inclination (degrees)
Ω:	12.3	Longitude of ascending node (degrees)
T:	1974.720	Epoch of periastron passage (year)
e:	0.333	Eccentricity
ω:	176.1	Longitude of periastron (degrees)
Start-Year:	2012.0	Year
End-Year:	2038.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KUI108

Position:	214222.94+410437.3	Epoch-2000 right ascension and declination
WDS-ID:	21424+4105	WDS designation
Discoverer Code:	KUI108	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	206644	HD catalog number
Hipparcos number:	107162	Hipparcos catalog number
V1:	6.33	Magnitude of the primary
V2:	6.72	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1997	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for KUI108

WDS 6th Orbit including measures of KUI108

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

Ephemeris of KUI108

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.099    260.8
-------------------------
2012.0     0.194     30.0
2013.0     0.200     23.8
2014.0     0.203     18.0
2015.0     0.204     12.3
2016.0     0.201      6.5
2017.0     0.196      0.5
2018.0     0.188    354.1
2019.0     0.178    347.0
2020.0     0.165    338.9
2021.0     0.150    329.4
2022.0     0.134    317.6
2023.0     0.119    302.7
2024.0     0.106    283.7
2025.0     0.099    260.8
2026.0     0.098    235.9
2027.0     0.100    211.6
2028.0     0.102    188.6
2029.0     0.101    165.7
2030.0     0.101    142.3
2031.0     0.104    119.3
2032.0     0.112     98.7
2033.0     0.125     81.7
2034.0     0.140     68.0
2035.0     0.154     57.0
2036.0     0.168     47.9
2037.0     0.180     40.0

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.