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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:59:37

Orbital Elements for HDS1530

WDS:	HDS1530	WDS ID/Discoverer
P:	39.070	Orbital period (years)
a:	0.267	Semi-major axis (arcseconds)
i:	50.2	Inclination (degrees)
Ω:	109.7	Longitude of ascending node (degrees)
T:	2007.880	Epoch of periastron passage (year)
e:	0.547	Eccentricity
ω:	132.6	Longitude of periastron (degrees)
Start-Year:	2006.0	Year
End-Year:	2044.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1530

Position:	104154.45-781103.3	Epoch-2000 right ascension and declination
WDS-ID:	10419-7811	WDS designation
Discoverer Code:	HDS1530	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	52351	Hipparcos catalog number
V1:	10.31	Magnitude of the primary
V2:	11.08	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1530

WDS 6th Orbit including measures of HDS1530

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

Ephemeris of HDS1530

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.317     67.0
-------------------------
2006.0     0.102    171.9
2007.0     0.084    216.2
2008.0     0.103    259.0
2009.0     0.131    284.8
2010.0     0.149    302.6
2011.0     0.158    317.4
2012.0     0.164    330.9
2013.0     0.170    343.5
2014.0     0.176    355.3
2015.0     0.185      6.1
2016.0     0.195     15.9
2017.0     0.208     24.6
2018.0     0.221     32.2
2019.0     0.235     39.0
2020.0     0.250     45.0
2021.0     0.264     50.3
2022.0     0.279     55.1
2023.0     0.292     59.4
2024.0     0.305     63.4
2025.0     0.317     67.0
2026.0     0.328     70.4
2027.0     0.337     73.6
2028.0     0.345     76.6
2029.0     0.352     79.5
2030.0     0.357     82.3
2031.0     0.360     85.0
2032.0     0.362     87.7
2033.0     0.361     90.4
2034.0     0.358     93.2
2035.0     0.353     95.9
2036.0     0.345     98.8
2037.0     0.334    101.9
2038.0     0.319    105.2
2039.0     0.302    108.8
2040.0     0.280    113.0
2041.0     0.253    118.0
2042.0     0.222    124.2
2043.0     0.185    132.7

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.