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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:20:09

Orbital Elements for H148

WDS:	H148	WDS ID/Discoverer
P:	82.760	Orbital period (years)
a:	0.572	Semi-major axis (arcseconds)
i:	82.5	Inclination (degrees)
Ω:	64.7	Longitude of ascending node (degrees)
T:	2002.160	Epoch of periastron passage (year)
e:	0.733	Eccentricity
ω:	28.2	Longitude of periastron (degrees)
Start-Year:	1984.0	Year
End-Year:	2066.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for H148

Position:	211342.46+642415.1	Epoch-2000 right ascension and declination
WDS-ID:	21137+6424	WDS designation
Discoverer Code:	H148	Discover designation and components
ADS number:	14783	Aitken Double Star catalog
HD number:	202582	HD catalog number
Hipparcos number:	104788	Hipparcos catalog number
V1:	7.21	Magnitude of the primary
V2:	7.33	Magnitude of the secondary
Equinox:		Equinox
Date:	2019	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for H148

WDS 6th Orbit including measures of H148

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

Ephemeris of H148

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.839    245.7
-------------------------
1984.0     0.438    255.4
1985.0     0.408    256.2
1986.0     0.376    257.0
1987.0     0.343    258.0
1988.0     0.310    259.1
1989.0     0.275    260.6
1990.0     0.240    262.5
1991.0     0.203    265.1
1992.0     0.166    268.9
1993.0     0.129    274.7
1994.0     0.094    285.2
1995.0     0.064    306.6
1996.0     0.053    347.4
1997.0     0.070     24.2
1998.0     0.100     42.5
1999.0     0.133     52.0
2000.0     0.158     57.9
2001.0     0.167     62.6
2002.0     0.143     67.7
2003.0     0.081     78.2
2004.0     0.026    166.0
2005.0     0.094    226.4
2006.0     0.170    234.2
2007.0     0.240    237.3
2008.0     0.304    239.0
2009.0     0.361    240.2
2010.0     0.414    241.0
2011.0     0.462    241.7
2012.0     0.506    242.2
2013.0     0.546    242.7
2014.0     0.583    243.1
2015.0     0.618    243.4
2016.0     0.649    243.7
2017.0     0.678    244.0
2018.0     0.705    244.3
2019.0     0.730    244.5
2020.0     0.753    244.8
2021.0     0.773    245.0
2022.0     0.792    245.2
2023.0     0.810    245.4
2024.0     0.825    245.6
2025.0     0.839    245.7
2026.0     0.852    245.9
2027.0     0.863    246.1
2028.0     0.873    246.3
2029.0     0.881    246.4
2030.0     0.889    246.6
2031.0     0.895    246.7
2032.0     0.899    246.9
2033.0     0.903    247.1
2034.0     0.906    247.2
2035.0     0.907    247.4
2036.0     0.907    247.5
2037.0     0.906    247.7
2038.0     0.904    247.8
2039.0     0.902    248.0
2040.0     0.898    248.1
2041.0     0.893    248.3
2042.0     0.887    248.5
2043.0     0.880    248.6
2044.0     0.872    248.8
2045.0     0.863    248.9
2046.0     0.853    249.1
2047.0     0.843    249.3
2048.0     0.831    249.5
2049.0     0.818    249.7
2050.0     0.805    249.9
2051.0     0.791    250.1
2052.0     0.775    250.3
2053.0     0.759    250.5
2054.0     0.742    250.7
2055.0     0.723    250.9
2056.0     0.704    251.2
2057.0     0.684    251.4
2058.0     0.663    251.7
2059.0     0.641    252.0
2060.0     0.619    252.3
2061.0     0.595    252.7
2062.0     0.570    253.1
2063.0     0.544    253.5
2064.0     0.517    253.9
2065.0     0.489    254.4

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.