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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:36:45

Orbital Elements for GKI1AA,AB

WDS:	GKI1AA,AB	WDS ID/Discoverer
P:	61.000	Orbital period (years)
a:	0.171	Semi-major axis (arcseconds)
i:	49.0	Inclination (degrees)
Ω:	13.0	Longitude of ascending node (degrees)
T:	1940.000	Epoch of periastron passage (year)
e:	0.67	Eccentricity
ω:	249.0	Longitude of periastron (degrees)
Start-Year:	1995.0	Year
End-Year:	2055.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for GKI1AA,AB

Position:	023603.83+065300.1	Epoch-2000 right ascension and declination
WDS-ID:	02361+0653	WDS designation
Discoverer Code:	GKI1AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	16160	HD catalog number
Hipparcos number:	12114	Hipparcos catalog number
V1:	5.83	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for GKI1AA,AB

WDS 6th Orbit including measures of GKI1AA,AB

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

Ephemeris of GKI1AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.211     60.0
-------------------------
1995.0     0.112    156.9
1996.0     0.106    164.0
1997.0     0.098    172.2
1998.0     0.087    182.0
1999.0     0.074    194.8
2000.0     0.057    214.6
2001.0     0.040    252.7
2002.0     0.043    307.8
2003.0     0.063    339.9
2004.0     0.085    355.7
2005.0     0.104      5.1
2006.0     0.121     11.8
2007.0     0.135     16.9
2008.0     0.147     21.2
2009.0     0.158     24.8
2010.0     0.167     28.0
2011.0     0.175     30.8
2012.0     0.181     33.5
2013.0     0.187     36.0
2014.0     0.192     38.3
2015.0     0.197     40.5
2016.0     0.200     42.6
2017.0     0.203     44.7
2018.0     0.206     46.7
2019.0     0.208     48.7
2020.0     0.210     50.6
2021.0     0.211     52.5
2022.0     0.211     54.4
2023.0     0.212     56.3
2024.0     0.212     58.1
2025.0     0.211     60.0
2026.0     0.211     61.9
2027.0     0.210     63.8
2028.0     0.209     65.7
2029.0     0.207     67.7
2030.0     0.206     69.6
2031.0     0.204     71.6
2032.0     0.202     73.7
2033.0     0.199     75.8
2034.0     0.197     77.9
2035.0     0.194     80.1
2036.0     0.191     82.4
2037.0     0.188     84.7
2038.0     0.185     87.1
2039.0     0.182     89.6
2040.0     0.179     92.2
2041.0     0.175     94.9
2042.0     0.172     97.7
2043.0     0.168    100.6
2044.0     0.164    103.6
2045.0     0.161    106.8
2046.0     0.157    110.2
2047.0     0.153    113.7
2048.0     0.149    117.4
2049.0     0.145    121.3
2050.0     0.141    125.4
2051.0     0.136    129.8
2052.0     0.132    134.4
2053.0     0.128    139.4
2054.0     0.123    144.8

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.