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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:16:39

Orbital Elements for I1567

WDS:	I1567	WDS ID/Discoverer
P:	40.880	Orbital period (years)
a:	0.326	Semi-major axis (arcseconds)
i:	121.6	Inclination (degrees)
Ω:	145.5	Longitude of ascending node (degrees)
T:	2006.400	Epoch of periastron passage (year)
e:	0.457	Eccentricity
ω:	274.0	Longitude of periastron (degrees)
Start-Year:	2005.0	Year
End-Year:	2045.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I1567

Position:	131653.63-343554.2	Epoch-2000 right ascension and declination
WDS-ID:	13169-3436	WDS designation
Discoverer Code:	I1567	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	115311	HD catalog number
Hipparcos number:	64804	Hipparcos catalog number
V1:	8.55	Magnitude of the primary
V2:	9.55	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:	n	Flags

Double Star Orbit for I1567

WDS 6th Orbit including measures of I1567

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

Ephemeris of I1567

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.248     60.9
-------------------------
2005.0     0.130    285.2
2006.0     0.095    247.9
2007.0     0.107    201.0
2008.0     0.152    173.7
2009.0     0.197    159.2
2010.0     0.234    149.8
2011.0     0.260    142.7
2012.0     0.278    136.7
2013.0     0.289    131.2
2014.0     0.294    126.1
2015.0     0.295    121.1
2016.0     0.293    116.0
2017.0     0.289    110.9
2018.0     0.283    105.6
2019.0     0.276    100.0
2020.0     0.270     94.1
2021.0     0.263     88.0
2022.0     0.257     81.5
2023.0     0.253     74.8
2024.0     0.250     67.9
2025.0     0.248     60.9
2026.0     0.249     53.8
2027.0     0.251     46.8
2028.0     0.255     40.0
2029.0     0.261     33.4
2030.0     0.267     27.1
2031.0     0.275     21.2
2032.0     0.283     15.6
2033.0     0.291     10.3
2034.0     0.299      5.3
2035.0     0.306      0.6
2036.0     0.312    356.0
2037.0     0.315    351.6
2038.0     0.316    347.2
2039.0     0.314    342.8
2040.0     0.307    338.3
2041.0     0.296    333.5
2042.0     0.277    328.2
2043.0     0.251    322.0
2044.0     0.216    314.0

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.