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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:28:08

Orbital Elements for HDS933

WDS:	HDS933	WDS ID/Discoverer
P:	54.600	Orbital period (years)
a:	0.157	Semi-major axis (arcseconds)
i:	106.0	Inclination (degrees)
Ω:	23.1	Longitude of ascending node (degrees)
T:	1982.170	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	287.1	Longitude of periastron (degrees)
Start-Year:	1998.0	Year
End-Year:	2052.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS933

Position:	064309.90-282109.9	Epoch-2000 right ascension and declination
WDS-ID:	06432-2821	WDS designation
Discoverer Code:	HDS933	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	7.54	Magnitude of the primary
V2:	9.14	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS933

WDS 6th Orbit including measures of HDS933

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

Ephemeris of HDS933

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.162    210.5
-------------------------
1998.0     0.076    337.1
1999.0     0.071    329.8
2000.0     0.066    321.5
2001.0     0.064    312.3
2002.0     0.062    302.4
2003.0     0.062    292.3
2004.0     0.064    282.6
2005.0     0.067    273.5
2006.0     0.072    265.4
2007.0     0.077    258.4
2008.0     0.083    252.3
2009.0     0.090    247.1
2010.0     0.097    242.7
2011.0     0.104    238.8
2012.0     0.111    235.4
2013.0     0.118    232.4
2014.0     0.124    229.8
2015.0     0.131    227.4
2016.0     0.137    225.2
2017.0     0.142    223.2
2018.0     0.147    221.4
2019.0     0.152    219.6
2020.0     0.156    218.0
2021.0     0.159    216.4
2022.0     0.161    214.9
2023.0     0.163    213.5
2024.0     0.163    212.0
2025.0     0.162    210.5
2026.0     0.160    209.0
2027.0     0.156    207.5
2028.0     0.150    205.8
2029.0     0.142    204.0
2030.0     0.132    201.9
2031.0     0.119    199.5
2032.0     0.104    196.4
2033.0     0.084    192.0
2034.0     0.062    184.6
2035.0     0.038    167.9
2036.0     0.022    114.2
2037.0     0.036     56.9
2038.0     0.059     38.8
2039.0     0.080     30.7
2040.0     0.095     25.6
2041.0     0.106     21.8
2042.0     0.112     18.6
2043.0     0.116     15.6
2044.0     0.116     12.7
2045.0     0.115      9.8
2046.0     0.112      6.8
2047.0     0.108      3.6
2048.0     0.103      0.1
2049.0     0.097    356.2
2050.0     0.091    351.8
2051.0     0.085    346.7

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.