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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:35:34

Orbital Elements for KOH70AB

WDS:	KOH70AB	WDS ID/Discoverer
P:	52.600	Orbital period (years)
a:	0.116	Semi-major axis (arcseconds)
i:	136.4	Inclination (degrees)
Ω:	147.6	Longitude of ascending node (degrees)
T:	2006.300	Epoch of periastron passage (year)
e:	0.3	Eccentricity
ω:	127.5	Longitude of periastron (degrees)
Start-Year:	1999.0	Year
End-Year:	2051.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KOH70AB

Position:	160354.98-203138.2	Epoch-2000 right ascension and declination
WDS-ID:	16039-2032	WDS designation
Discoverer Code:	KOH70AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.62	Magnitude of the primary
V2:	8.71	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for KOH70AB

WDS 6th Orbit including measures of KOH70AB

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

Ephemeris of KOH70AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.104    228.0
-------------------------
1999.0     0.089    111.8
2000.0     0.081    102.9
2001.0     0.073     92.2
2002.0     0.067     79.2
2003.0     0.063     64.0
2004.0     0.061     47.3
2005.0     0.063     30.5
2006.0     0.066     15.2
2007.0     0.072      1.8
2008.0     0.078    350.4
2009.0     0.083    340.5
2010.0     0.087    331.7
2011.0     0.091    323.7
2012.0     0.093    316.2
2013.0     0.095    309.0
2014.0     0.096    302.0
2015.0     0.096    295.1
2016.0     0.096    288.2
2017.0     0.096    281.3
2018.0     0.096    274.3
2019.0     0.096    267.4
2020.0     0.096    260.4
2021.0     0.097    253.6
2022.0     0.098    246.9
2023.0     0.100    240.3
2024.0     0.101    234.0
2025.0     0.104    228.0
2026.0     0.106    222.2
2027.0     0.109    216.8
2028.0     0.112    211.6
2029.0     0.115    206.6
2030.0     0.118    202.0
2031.0     0.122    197.6
2032.0     0.125    193.4
2033.0     0.127    189.4
2034.0     0.130    185.5
2035.0     0.132    181.8
2036.0     0.134    178.2
2037.0     0.136    174.7
2038.0     0.137    171.3
2039.0     0.137    167.9
2040.0     0.138    164.6
2041.0     0.137    161.2
2042.0     0.136    157.8
2043.0     0.134    154.3
2044.0     0.132    150.7
2045.0     0.129    147.0
2046.0     0.125    143.0
2047.0     0.120    138.7
2048.0     0.114    134.1
2049.0     0.108    128.9
2050.0     0.101    123.1

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.