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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:44:25

Orbital Elements for I1480

WDS:	I1480	WDS ID/Discoverer
P:	51.460	Orbital period (years)
a:	0.2967	Semi-major axis (arcseconds)
i:	49.5	Inclination (degrees)
Ω:	298.3	Longitude of ascending node (degrees)
T:	2007.240	Epoch of periastron passage (year)
e:	0.774	Eccentricity
ω:	16.2	Longitude of periastron (degrees)
Start-Year:	2000.0	Year
End-Year:	2050.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I1480

Position:	025351.15-443620.4	Epoch-2000 right ascension and declination
WDS-ID:	02539-4436	WDS designation
Discoverer Code:	I1480	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	18198	HD catalog number
Hipparcos number:	13498	Hipparcos catalog number
V1:	7.95	Magnitude of the primary
V2:	9.76	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2015	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for I1480

WDS 6th Orbit including measures of I1480

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

Ephemeris of I1480

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.490    121.2
-------------------------
2000.0     0.252    158.6
2001.0     0.223    163.1
2002.0     0.191    169.0
2003.0     0.159    177.3
2004.0     0.126    190.0
2005.0     0.095    211.3
2006.0     0.076    247.3
2007.0     0.069    295.6
2008.0     0.057      2.8
2009.0     0.088     58.0
2010.0     0.136     79.2
2011.0     0.181     89.4
2012.0     0.221     95.8
2013.0     0.258    100.2
2014.0     0.291    103.5
2015.0     0.320    106.3
2016.0     0.347    108.5
2017.0     0.370    110.5
2018.0     0.392    112.3
2019.0     0.411    113.8
2020.0     0.429    115.3
2021.0     0.445    116.6
2022.0     0.458    117.8
2023.0     0.471    119.0
2024.0     0.481    120.1
2025.0     0.490    121.2
2026.0     0.498    122.2
2027.0     0.504    123.2
2028.0     0.509    124.2
2029.0     0.513    125.2
2030.0     0.515    126.2
2031.0     0.516    127.1
2032.0     0.516    128.1
2033.0     0.514    129.0
2034.0     0.512    130.0
2035.0     0.508    131.0
2036.0     0.503    131.9
2037.0     0.496    133.0
2038.0     0.489    134.0
2039.0     0.480    135.1
2040.0     0.470    136.2
2041.0     0.458    137.4
2042.0     0.445    138.6
2043.0     0.431    139.9
2044.0     0.416    141.4
2045.0     0.399    142.9
2046.0     0.381    144.5
2047.0     0.361    146.4
2048.0     0.340    148.4
2049.0     0.316    150.8

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.