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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:51:19

Orbital Elements for I1336

WDS:	I1336	WDS ID/Discoverer
P:	36.060	Orbital period (years)
a:	0.132	Semi-major axis (arcseconds)
i:	45.0	Inclination (degrees)
Ω:	15.8	Longitude of ascending node (degrees)
T:	2017.290	Epoch of periastron passage (year)
e:	0.578	Eccentricity
ω:	11.3	Longitude of periastron (degrees)
Start-Year:	2007.0	Year
End-Year:	2043.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I1336

Position:	174707.30-380643.5	Epoch-2000 right ascension and declination
WDS-ID:	17471-3807	WDS designation
Discoverer Code:	I1336	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	161390	HD catalog number
Hipparcos number:	87042	Hipparcos catalog number
V1:	6.76	Magnitude of the primary
V2:	7.82	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for I1336

WDS 6th Orbit including measures of I1336

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

Ephemeris of I1336

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.146    173.9
-------------------------
2007.0     0.161    225.8
2008.0     0.149    230.0
2009.0     0.137    234.9
2010.0     0.124    240.8
2011.0     0.109    248.2
2012.0     0.095    257.9
2013.0     0.080    271.1
2014.0     0.068    289.5
2015.0     0.060    314.3
2016.0     0.058    343.7
2017.0     0.056     14.5
2018.0     0.052     48.8
2019.0     0.051     87.9
2020.0     0.062    120.0
2021.0     0.080    140.4
2022.0     0.098    153.3
2023.0     0.116    162.1
2024.0     0.132    168.7
2025.0     0.146    173.9
2026.0     0.159    178.2
2027.0     0.170    181.9
2028.0     0.180    185.2
2029.0     0.188    188.2
2030.0     0.194    190.9
2031.0     0.199    193.5
2032.0     0.203    196.0
2033.0     0.206    198.4
2034.0     0.207    200.7
2035.0     0.207    203.1
2036.0     0.205    205.5
2037.0     0.203    207.9
2038.0     0.199    210.4
2039.0     0.194    213.0
2040.0     0.187    215.7
2041.0     0.180    218.7
2042.0     0.171    222.0

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.