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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:18:09

Orbital Elements for HDS29

WDS:	HDS29	WDS ID/Discoverer
P:	78.800	Orbital period (years)
a:	0.4233	Semi-major axis (arcseconds)
i:	136.4	Inclination (degrees)
Ω:	331.7	Longitude of ascending node (degrees)
T:	2062.400	Epoch of periastron passage (year)
e:	0.895	Eccentricity
ω:	348.3	Longitude of periastron (degrees)
Start-Year:	1986.0	Year
End-Year:	2064.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS29

Position:	001309.03+202256.7	Epoch-2000 right ascension and declination
WDS-ID:	00132+2023	WDS designation
Discoverer Code:	HDS29	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	1055	Hipparcos catalog number
V1:	10.76	Magnitude of the primary
V2:	12.24	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS29

WDS 6th Orbit including measures of HDS29

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

Ephemeris of HDS29

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.794    159.4
-------------------------
1986.0     0.143    208.5
1987.0     0.191    198.9
1988.0     0.235    193.0
1989.0     0.276    189.0
1990.0     0.313    185.9
1991.0     0.348    183.5
1992.0     0.381    181.5
1993.0     0.411    179.8
1994.0     0.439    178.4
1995.0     0.466    177.1
1996.0     0.491    175.9
1997.0     0.515    174.9
1998.0     0.538    173.9
1999.0     0.559    173.0
2000.0     0.579    172.2
2001.0     0.598    171.4
2002.0     0.615    170.7
2003.0     0.632    170.0
2004.0     0.648    169.4
2005.0     0.663    168.8
2006.0     0.677    168.2
2007.0     0.690    167.6
2008.0     0.702    167.1
2009.0     0.714    166.6
2010.0     0.724    166.0
2011.0     0.734    165.6
2012.0     0.743    165.1
2013.0     0.751    164.6
2014.0     0.759    164.1
2015.0     0.766    163.7
2016.0     0.772    163.2
2017.0     0.777    162.8
2018.0     0.782    162.4
2019.0     0.786    161.9
2020.0     0.789    161.5
2021.0     0.791    161.1
2022.0     0.793    160.6
2023.0     0.794    160.2
2024.0     0.795    159.8
2025.0     0.794    159.4
2026.0     0.793    159.0
2027.0     0.792    158.6
2028.0     0.789    158.1
2029.0     0.786    157.7
2030.0     0.782    157.3
2031.0     0.778    156.8
2032.0     0.772    156.4
2033.0     0.766    156.0
2034.0     0.759    155.5
2035.0     0.752    155.0
2036.0     0.743    154.6
2037.0     0.734    154.1
2038.0     0.724    153.6
2039.0     0.713    153.1
2040.0     0.701    152.5
2041.0     0.688    152.0
2042.0     0.675    151.4
2043.0     0.660    150.8
2044.0     0.644    150.2
2045.0     0.627    149.5
2046.0     0.609    148.9
2047.0     0.590    148.1
2048.0     0.570    147.3
2049.0     0.548    146.5
2050.0     0.525    145.6
2051.0     0.500    144.6
2052.0     0.473    143.4
2053.0     0.445    142.2
2054.0     0.414    140.8
2055.0     0.381    139.1
2056.0     0.346    137.1
2057.0     0.307    134.6
2058.0     0.264    131.3
2059.0     0.216    126.7
2060.0     0.163    119.3
2061.0     0.101    103.4
2062.0     0.044     38.2
2063.0     0.055    272.5

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.