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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:01:42

Orbital Elements for HDS1574AA,AB

WDS:	HDS1574AA,AB	WDS ID/Discoverer
P:	46.220	Orbital period (years)
a:	0.235	Semi-major axis (arcseconds)
i:	116.4	Inclination (degrees)
Ω:	169.6	Longitude of ascending node (degrees)
T:	2013.140	Epoch of periastron passage (year)
e:	0.795	Eccentricity
ω:	337.5	Longitude of periastron (degrees)
Start-Year:	2002.0	Year
End-Year:	2048.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1574AA,AB

Position:	110145.73+364041.6	Epoch-2000 right ascension and declination
WDS-ID:	11017+3641	WDS designation
Discoverer Code:	HDS1574AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	95485	HD catalog number
Hipparcos number:	53903	Hipparcos catalog number
V1:	7.58	Magnitude of the primary
V2:	11.06	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1574AA,AB

WDS 6th Orbit including measures of HDS1574AA,AB

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

Ephemeris of HDS1574AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.283     10.8
-------------------------
2002.0     0.340    350.6
2003.0     0.325    349.6
2004.0     0.308    348.4
2005.0     0.288    347.1
2006.0     0.266    345.6
2007.0     0.241    343.8
2008.0     0.212    341.5
2009.0     0.179    338.5
2010.0     0.140    333.8
2011.0     0.094    325.1
2012.0     0.043    296.7
2013.0     0.041    188.8
2014.0     0.051    140.9
2015.0     0.051     92.9
2016.0     0.070     58.9
2017.0     0.097     41.8
2018.0     0.126     32.3
2019.0     0.153     26.2
2020.0     0.178     22.0
2021.0     0.203     18.8
2022.0     0.225     16.2
2023.0     0.246     14.2
2024.0     0.265     12.4
2025.0     0.283     10.8
2026.0     0.300      9.5
2027.0     0.315      8.2
2028.0     0.329      7.1
2029.0     0.341      6.1
2030.0     0.353      5.1
2031.0     0.363      4.2
2032.0     0.372      3.4
2033.0     0.379      2.5
2034.0     0.386      1.7
2035.0     0.391      1.0
2036.0     0.395      0.2
2037.0     0.398    359.5
2038.0     0.400    358.8
2039.0     0.401    358.0
2040.0     0.400    357.3
2041.0     0.398    356.6
2042.0     0.395    355.8
2043.0     0.390    355.1
2044.0     0.384    354.3
2045.0     0.376    353.5
2046.0     0.367    352.7
2047.0     0.356    351.8

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.