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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:40:59

Orbital Elements for KOH79AB

WDS:	KOH79AB	WDS ID/Discoverer
P:	47.900	Orbital period (years)
a:	0.172	Semi-major axis (arcseconds)
i:	110.0	Inclination (degrees)
Ω:	4.1	Longitude of ascending node (degrees)
T:	1989.350	Epoch of periastron passage (year)
e:	0.268	Eccentricity
ω:	70.5	Longitude of periastron (degrees)
Start-Year:	2002.0	Year
End-Year:	2048.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KOH79AB

Position:	083656.24-785645.5	Epoch-2000 right ascension and declination
WDS-ID:	08369-7857	WDS designation
Discoverer Code:	KOH79AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.4	Magnitude of the primary
V2:	10.5	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for KOH79AB

WDS 6th Orbit including measures of KOH79AB

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

Ephemeris of KOH79AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.127     26.7
-------------------------
2002.0     0.182    179.2
2003.0     0.182    177.0
2004.0     0.180    174.8
2005.0     0.176    172.5
2006.0     0.171    170.0
2007.0     0.164    167.4
2008.0     0.155    164.5
2009.0     0.146    161.3
2010.0     0.136    157.6
2011.0     0.126    153.4
2012.0     0.115    148.3
2013.0     0.104    142.2
2014.0     0.094    134.7
2015.0     0.085    125.6
2016.0     0.078    114.6
2017.0     0.074    101.8
2018.0     0.073     88.2
2019.0     0.076     74.8
2020.0     0.081     62.8
2021.0     0.089     52.6
2022.0     0.098     44.2
2023.0     0.108     37.3
2024.0     0.118     31.6
2025.0     0.127     26.7
2026.0     0.136     22.5
2027.0     0.143     18.7
2028.0     0.148     15.3
2029.0     0.151     12.0
2030.0     0.152      8.8
2031.0     0.149      5.6
2032.0     0.143      2.1
2033.0     0.133    358.3
2034.0     0.119    353.7
2035.0     0.102    347.7
2036.0     0.083    339.1
2037.0     0.063    325.1
2038.0     0.047    299.9
2039.0     0.045    262.9
2040.0     0.057    233.0
2041.0     0.077    216.1
2042.0     0.097    206.3
2043.0     0.117    199.9
2044.0     0.134    195.3
2045.0     0.149    191.6
2046.0     0.161    188.6
2047.0     0.170    185.9

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.