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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:22:29

Orbital Elements for HDS3065AA,AB

WDS:	HDS3065AA,AB	WDS ID/Discoverer
P:	67.300	Orbital period (years)
a:	0.466	Semi-major axis (arcseconds)
i:	101.3	Inclination (degrees)
Ω:	75.8	Longitude of ascending node (degrees)
T:	2025.000	Epoch of periastron passage (year)
e:	0.63	Eccentricity
ω:	30.7	Longitude of periastron (degrees)
Start-Year:	1992.0	Year
End-Year:	2058.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3065AA,AB

Position:	213257.46+240738.6	Epoch-2000 right ascension and declination
WDS-ID:	21330+2408	WDS designation
Discoverer Code:	HDS3065AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	205142	HD catalog number
Hipparcos number:	106394	Hipparcos catalog number
V1:	8.78	Magnitude of the primary
V2:	11.21	Magnitude of the secondary
Equinox:		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 HDS3065AA,AB

WDS 6th Orbit including measures of HDS3065AA,AB

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

Ephemeris of HDS3065AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.149     69.2
-------------------------
1992.0     0.651    248.9
1993.0     0.639    248.5
1994.0     0.626    248.0
1995.0     0.612    247.6
1996.0     0.597    247.1
1997.0     0.580    246.6
1998.0     0.563    246.0
1999.0     0.544    245.5
2000.0     0.524    244.8
2001.0     0.503    244.2
2002.0     0.480    243.4
2003.0     0.457    242.6
2004.0     0.432    241.7
2005.0     0.407    240.7
2006.0     0.380    239.6
2007.0     0.352    238.3
2008.0     0.323    236.7
2009.0     0.294    234.8
2010.0     0.263    232.6
2011.0     0.232    229.7
2012.0     0.201    225.9
2013.0     0.169    220.7
2014.0     0.139    213.1
2015.0     0.111    201.5
2016.0     0.089    183.4
2017.0     0.080    158.0
2018.0     0.087    132.0
2019.0     0.107    112.8
2020.0     0.133    100.4
2021.0     0.158     92.0
2022.0     0.179     85.7
2023.0     0.189     80.6
2024.0     0.181     75.5
2025.0     0.149     69.2
2026.0     0.096     57.0
2027.0     0.044     11.8
2028.0     0.070    295.6
2029.0     0.133    276.6
2030.0     0.195    269.8
2031.0     0.253    266.2
2032.0     0.305    263.9
2033.0     0.353    262.3
2034.0     0.396    261.0
2035.0     0.435    260.0
2036.0     0.471    259.1
2037.0     0.503    258.4
2038.0     0.532    257.7
2039.0     0.558    257.1
2040.0     0.581    256.6
2041.0     0.602    256.1
2042.0     0.620    255.6
2043.0     0.636    255.2
2044.0     0.650    254.7
2045.0     0.662    254.3
2046.0     0.672    253.9
2047.0     0.680    253.6
2048.0     0.686    253.2
2049.0     0.691    252.8
2050.0     0.694    252.4
2051.0     0.695    252.1
2052.0     0.695    251.7
2053.0     0.693    251.3
2054.0     0.690    251.0
2055.0     0.686    250.6
2056.0     0.680    250.2
2057.0     0.672    249.8

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.