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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:20:39

Orbital Elements for I260CD

WDS:	I260CD	WDS ID/Discoverer
P:	44.730	Orbital period (years)
a:	0.495	Semi-major axis (arcseconds)
i:	124.7	Inclination (degrees)
Ω:	241.6	Longitude of ascending node (degrees)
T:	2011.620	Epoch of periastron passage (year)
e:	0.81	Eccentricity
ω:	112.2	Longitude of periastron (degrees)
Start-Year:	2003.0	Year
End-Year:	2047.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I260CD

Position:	003133.36-625755.6	Epoch-2000 right ascension and declination
WDS-ID:	00315-6257	WDS designation
Discoverer Code:	I260CD	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	2885	HD catalog number
Hipparcos number:	2487	Hipparcos catalog number
V1:	4.60	Magnitude of the primary
V2:	6.54	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 I260CD

WDS 6th Orbit including measures of I260CD

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

Ephemeris of I260CD

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.462    317.4
-------------------------
2003.0     0.535    269.8
2004.0     0.512    267.4
2005.0     0.486    264.8
2006.0     0.453    261.8
2007.0     0.414    258.3
2008.0     0.365    253.9
2009.0     0.303    248.0
2010.0     0.221    238.4
2011.0     0.102    210.3
2012.0     0.103     75.0
2013.0     0.179     41.7
2014.0     0.218     25.0
2015.0     0.248     12.9
2016.0     0.273      3.2
2017.0     0.297    355.1
2018.0     0.320    348.1
2019.0     0.342    342.1
2020.0     0.364    336.8
2021.0     0.385    332.1
2022.0     0.405    327.9
2023.0     0.425    324.1
2024.0     0.444    320.6
2025.0     0.462    317.4
2026.0     0.479    314.4
2027.0     0.496    311.7
2028.0     0.511    309.1
2029.0     0.525    306.6
2030.0     0.539    304.3
2031.0     0.551    302.1
2032.0     0.562    300.0
2033.0     0.572    297.9
2034.0     0.581    295.9
2035.0     0.589    294.0
2036.0     0.595    292.1
2037.0     0.600    290.3
2038.0     0.603    288.5
2039.0     0.605    286.7
2040.0     0.605    284.9
2041.0     0.604    283.1
2042.0     0.600    281.3
2043.0     0.595    279.4
2044.0     0.587    277.5
2045.0     0.577    275.6
2046.0     0.564    273.6

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.