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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:46:50

Orbital Elements for I1323

WDS:	I1323	WDS ID/Discoverer
P:	42.500	Orbital period (years)
a:	0.224	Semi-major axis (arcseconds)
i:	46.8	Inclination (degrees)
Ω:	138.2	Longitude of ascending node (degrees)
T:	2000.850	Epoch of periastron passage (year)
e:	0.58	Eccentricity
ω:	167.9	Longitude of periastron (degrees)
Start-Year:	2004.0	Year
End-Year:	2046.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I1323

Position:	172940.70-494723.6	Epoch-2000 right ascension and declination
WDS-ID:	17297-4947	WDS designation
Discoverer Code:	I1323	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	158059	HD catalog number
Hipparcos number:	85610	Hipparcos catalog number
V1:	8.55	Magnitude of the primary
V2:	8.87	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2017	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for I1323

WDS 6th Orbit including measures of I1323

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

Ephemeris of I1323

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.349    135.5
-------------------------
2004.0     0.103     28.7
2005.0     0.116     48.7
2006.0     0.134     63.9
2007.0     0.155     75.4
2008.0     0.176     84.1
2009.0     0.197     90.9
2010.0     0.217     96.4
2011.0     0.236    101.1
2012.0     0.254    105.0
2013.0     0.270    108.5
2014.0     0.285    111.5
2015.0     0.298    114.3
2016.0     0.310    116.9
2017.0     0.320    119.3
2018.0     0.329    121.5
2019.0     0.337    123.7
2020.0     0.342    125.7
2021.0     0.347    127.7
2022.0     0.350    129.7
2023.0     0.351    131.6
2024.0     0.351    133.5
2025.0     0.349    135.5
2026.0     0.345    137.4
2027.0     0.340    139.4
2028.0     0.333    141.5
2029.0     0.325    143.7
2030.0     0.314    146.0
2031.0     0.302    148.5
2032.0     0.288    151.2
2033.0     0.272    154.3
2034.0     0.254    157.7
2035.0     0.233    161.7
2036.0     0.211    166.5
2037.0     0.186    172.6
2038.0     0.160    180.5
2039.0     0.132    191.7
2040.0     0.107    208.6
2041.0     0.088    234.3
2042.0     0.083    267.9
2043.0     0.090    300.0
2044.0     0.096    327.0
2045.0     0.097    352.4

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.