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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:59:49

Orbital Elements for WSI112

WDS:	WSI112	WDS ID/Discoverer
P:	35.000	Orbital period (years)
a:	0.554	Semi-major axis (arcseconds)
i:	131.2	Inclination (degrees)
Ω:	102.2	Longitude of ascending node (degrees)
T:	2001.050	Epoch of periastron passage (year)
e:	0.228	Eccentricity
ω:	125.2	Longitude of periastron (degrees)
Start-Year:	2008.0	Year
End-Year:	2042.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WSI112

Position:	104302.93-091241.1	Epoch-2000 right ascension and declination
WDS-ID:	10430-0913	WDS designation
Discoverer Code:	WSI112	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	15.3	Magnitude of the primary
V2:	17.0	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for WSI112

WDS 6th Orbit including measures of WSI112

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

Ephemeris of WSI112

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.621    108.5
-------------------------
2008.0     0.465    250.7
2009.0     0.451    241.0
2010.0     0.437    230.8
2011.0     0.426    219.9
2012.0     0.420    208.5
2013.0     0.422    197.1
2014.0     0.431    185.9
2015.0     0.448    175.4
2016.0     0.469    165.8
2017.0     0.495    157.1
2018.0     0.522    149.2
2019.0     0.548    142.1
2020.0     0.573    135.7
2021.0     0.594    129.8
2022.0     0.611    124.2
2023.0     0.621    118.9
2024.0     0.625    113.7
2025.0     0.621    108.5
2026.0     0.608    103.1
2027.0     0.585     97.4
2028.0     0.554     91.2
2029.0     0.513     84.1
2030.0     0.464     75.6
2031.0     0.410     65.0
2032.0     0.356     51.0
2033.0     0.312     32.6
2034.0     0.291      9.9
2035.0     0.301    346.4
2036.0     0.335    326.1
2037.0     0.380    310.2
2038.0     0.421    297.6
2039.0     0.453    287.0
2040.0     0.472    277.6
2041.0     0.479    268.7

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.