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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:14:32

Orbital Elements for HDS1824AA,AB

WDS:	HDS1824AA,AB	WDS ID/Discoverer
P:	44.275	Orbital period (years)
a:	0.408	Semi-major axis (arcseconds)
i:	114.5	Inclination (degrees)
Ω:	174.1	Longitude of ascending node (degrees)
T:	2016.641	Epoch of periastron passage (year)
e:	0.848	Eccentricity
ω:	103.5	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 HDS1824AA,AB

Position:	130032.65-333018.9	Epoch-2000 right ascension and declination
WDS-ID:	13005-3330	WDS designation
Discoverer Code:	HDS1824AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	112935	HD catalog number
Hipparcos number:	63490	Hipparcos catalog number
V1:	6.20	Magnitude of the primary
V2:	8.71	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:	n	Flags

Double Star Orbit for HDS1824AA,AB

WDS 6th Orbit including measures of HDS1824AA,AB

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

Ephemeris of HDS1824AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.235    283.0
-------------------------
2003.0     0.383    215.7
2004.0     0.383    213.7
2005.0     0.381    211.7
2006.0     0.377    209.6
2007.0     0.372    207.5
2008.0     0.364    205.3
2009.0     0.354    203.0
2010.0     0.342    200.5
2011.0     0.325    197.9
2012.0     0.304    194.9
2013.0     0.276    191.3
2014.0     0.239    186.9
2015.0     0.186    180.3
2016.0     0.097    164.9
2017.0     0.075      2.5
2018.0     0.142    337.7
2019.0     0.170    325.6
2020.0     0.187    316.3
2021.0     0.199    308.3
2022.0     0.209    301.2
2023.0     0.218    294.6
2024.0     0.227    288.6
2025.0     0.235    283.0
2026.0     0.244    277.8
2027.0     0.253    273.0
2028.0     0.262    268.5
2029.0     0.270    264.3
2030.0     0.279    260.4
2031.0     0.288    256.7
2032.0     0.297    253.2
2033.0     0.306    249.9
2034.0     0.315    246.8
2035.0     0.323    243.9
2036.0     0.331    241.1
2037.0     0.339    238.5
2038.0     0.346    235.9
2039.0     0.353    233.5
2040.0     0.359    231.2
2041.0     0.365    228.9
2042.0     0.370    226.7
2043.0     0.374    224.5
2044.0     0.378    222.4
2045.0     0.381    220.4
2046.0     0.383    218.3

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.