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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:59:34

Orbital Elements for HDS1528

WDS:	HDS1528	WDS ID/Discoverer
P:	60.300	Orbital period (years)
a:	0.948	Semi-major axis (arcseconds)
i:	150.0	Inclination (degrees)
Ω:	148.7	Longitude of ascending node (degrees)
T:	2030.140	Epoch of periastron passage (year)
e:	0.217	Eccentricity
ω:	195.8	Longitude of periastron (degrees)
Start-Year:	1995.0	Year
End-Year:	2055.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1528

Position:	104109.34-365343.5	Epoch-2000 right ascension and declination
WDS-ID:	10412-3654	WDS designation
Discoverer Code:	HDS1528	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	52296	Hipparcos catalog number
V1:	10.19	Magnitude of the primary
V2:	12.75	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2020	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1528

WDS 6th Orbit including measures of HDS1528

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

Ephemeris of HDS1528

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.760    356.3
-------------------------
1995.0     1.134    152.2
1996.0     1.142    148.7
1997.0     1.146    145.2
1998.0     1.148    141.8
1999.0     1.147    138.4
2000.0     1.143    134.9
2001.0     1.136    131.4
2002.0     1.127    127.9
2003.0     1.116    124.3
2004.0     1.102    120.6
2005.0     1.085    116.8
2006.0     1.067    112.9
2007.0     1.047    108.8
2008.0     1.026    104.6
2009.0     1.004    100.2
2010.0     0.980     95.6
2011.0     0.956     90.7
2012.0     0.932     85.6
2013.0     0.908     80.3
2014.0     0.885     74.6
2015.0     0.863     68.7
2016.0     0.842     62.5
2017.0     0.824     55.9
2018.0     0.808     49.1
2019.0     0.794     42.0
2020.0     0.783     34.7
2021.0     0.775     27.3
2022.0     0.769     19.6
2023.0     0.765     11.9
2024.0     0.762      4.2
2025.0     0.760    356.3
2026.0     0.758    348.5
2027.0     0.754    340.5
2028.0     0.750    332.5
2029.0     0.744    324.4
2030.0     0.737    316.1
2031.0     0.728    307.6
2032.0     0.720    299.0
2033.0     0.712    290.1
2034.0     0.707    281.1
2035.0     0.705    272.0
2036.0     0.707    262.9
2037.0     0.714    253.9
2038.0     0.726    245.1
2039.0     0.743    236.7
2040.0     0.765    228.7
2041.0     0.790    221.2
2042.0     0.818    214.2
2043.0     0.847    207.6
2044.0     0.878    201.5
2045.0     0.909    195.8
2046.0     0.940    190.5
2047.0     0.969    185.6
2048.0     0.997    180.9
2049.0     1.024    176.4
2050.0     1.048    172.2
2051.0     1.070    168.2
2052.0     1.090    164.3
2053.0     1.106    160.5
2054.0     1.120    156.8

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.