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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:44:49

Orbital Elements for B179

WDS:	B179	WDS ID/Discoverer
P:	80.350	Orbital period (years)
a:	0.372	Semi-major axis (arcseconds)
i:	116.3	Inclination (degrees)
Ω:	169.4	Longitude of ascending node (degrees)
T:	2026.880	Epoch of periastron passage (year)
e:	0.562	Eccentricity
ω:	158.5	Longitude of periastron (degrees)
Start-Year:	1985.0	Year
End-Year:	2065.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B179

Position:	090957.24-284520.7	Epoch-2000 right ascension and declination
WDS-ID:	09100-2845	WDS designation
Discoverer Code:	B179	Discover designation and components
ADS number:	7223	Aitken Double Star catalog
HD number:	78921	HD catalog number
Hipparcos number:	45003	Hipparcos catalog number
V1:	9.44	Magnitude of the primary
V2:	9.64	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B179

WDS 6th Orbit including measures of B179

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

Ephemeris of B179

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.116     22.9
-------------------------
1985.0     0.540    180.6
1986.0     0.545    179.8
1987.0     0.550    179.1
1988.0     0.554    178.3
1989.0     0.557    177.6
1990.0     0.559    176.9
1991.0     0.561    176.1
1992.0     0.561    175.4
1993.0     0.561    174.7
1994.0     0.560    174.0
1995.0     0.558    173.2
1996.0     0.555    172.5
1997.0     0.551    171.8
1998.0     0.546    171.0
1999.0     0.541    170.2
2000.0     0.534    169.5
2001.0     0.526    168.7
2002.0     0.518    167.8
2003.0     0.508    167.0
2004.0     0.497    166.1
2005.0     0.485    165.1
2006.0     0.472    164.1
2007.0     0.458    163.1
2008.0     0.442    161.9
2009.0     0.425    160.7
2010.0     0.407    159.4
2011.0     0.388    158.0
2012.0     0.367    156.4
2013.0     0.344    154.6
2014.0     0.321    152.5
2015.0     0.295    150.1
2016.0     0.268    147.3
2017.0     0.240    143.7
2018.0     0.211    139.3
2019.0     0.181    133.3
2020.0     0.151    125.0
2021.0     0.123    112.7
2022.0     0.101     94.3
2023.0     0.092     69.2
2024.0     0.098     43.1
2025.0     0.116     22.9
2026.0     0.138      8.7
2027.0     0.156    358.2
2028.0     0.167    349.5
2029.0     0.171    341.6
2030.0     0.168    333.7
2031.0     0.161    325.3
2032.0     0.152    315.9
2033.0     0.143    305.5
2034.0     0.137    293.8
2035.0     0.135    281.4
2036.0     0.137    269.0
2037.0     0.144    257.4
2038.0     0.154    247.1
2039.0     0.168    238.3
2040.0     0.184    230.9
2041.0     0.201    224.8
2042.0     0.220    219.7
2043.0     0.239    215.3
2044.0     0.257    211.6
2045.0     0.276    208.4
2046.0     0.295    205.7
2047.0     0.313    203.2
2048.0     0.331    201.0
2049.0     0.348    199.0
2050.0     0.365    197.3
2051.0     0.382    195.6
2052.0     0.397    194.1
2053.0     0.412    192.7
2054.0     0.427    191.4
2055.0     0.440    190.2
2056.0     0.453    189.1
2057.0     0.466    188.0
2058.0     0.477    187.0
2059.0     0.488    186.0
2060.0     0.498    185.1
2061.0     0.508    184.2
2062.0     0.516    183.3
2063.0     0.524    182.5
2064.0     0.532    181.7

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.