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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:56:48

Orbital Elements for KOH88

WDS:	KOH88	WDS ID/Discoverer
P:	49.720	Orbital period (years)
a:	0.197	Semi-major axis (arcseconds)
i:	119.9	Inclination (degrees)
Ω:	276.1	Longitude of ascending node (degrees)
T:	1995.073	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	182.0	Longitude of periastron (degrees)
Start-Year:	2001.0	Year
End-Year:	2049.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KOH88

Position:	101408.06-763632.9	Epoch-2000 right ascension and declination
WDS-ID:	10142-7636	WDS designation
Discoverer Code:	KOH88	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	9.4	Magnitude of the primary
V2:	10.0	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 KOH88

WDS 6th Orbit including measures of KOH88

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

Ephemeris of KOH88

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.278    267.7
-------------------------
2001.0     0.087    341.6
2002.0     0.104    328.2
2003.0     0.123    318.7
2004.0     0.142    311.8
2005.0     0.161    306.5
2006.0     0.179    302.3
2007.0     0.195    298.8
2008.0     0.211    295.8
2009.0     0.225    293.3
2010.0     0.238    291.0
2011.0     0.249    289.0
2012.0     0.259    287.1
2013.0     0.268    285.4
2014.0     0.276    283.7
2015.0     0.282    282.2
2016.0     0.287    280.7
2017.0     0.291    279.2
2018.0     0.294    277.8
2019.0     0.295    276.4
2020.0     0.295    275.0
2021.0     0.294    273.6
2022.0     0.292    272.2
2023.0     0.288    270.8
2024.0     0.284    269.3
2025.0     0.278    267.7
2026.0     0.271    266.1
2027.0     0.262    264.4
2028.0     0.252    262.6
2029.0     0.241    260.6
2030.0     0.229    258.4
2031.0     0.216    256.0
2032.0     0.201    253.2
2033.0     0.186    249.9
2034.0     0.169    246.1
2035.0     0.151    241.3
2036.0     0.133    235.3
2037.0     0.114    227.2
2038.0     0.097    216.3
2039.0     0.082    201.0
2040.0     0.073    180.6
2041.0     0.073    157.4
2042.0     0.079    136.1
2043.0     0.089    119.0
2044.0     0.097    105.1
2045.0     0.098     92.5
2046.0     0.092     79.2
2047.0     0.081     63.0
2048.0     0.072     42.1

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.