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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:00:09

Orbital Elements for B405

WDS:	B405	WDS ID/Discoverer
P:	87.950	Orbital period (years)
a:	0.343	Semi-major axis (arcseconds)
i:	135.3	Inclination (degrees)
Ω:	336.5	Longitude of ascending node (degrees)
T:	1967.620	Epoch of periastron passage (year)
e:	0.559	Eccentricity
ω:	14.0	Longitude of periastron (degrees)
Start-Year:	1982.0	Year
End-Year:	2068.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B405

Position:	184616.27-272046.9	Epoch-2000 right ascension and declination
WDS-ID:	18463-2721	WDS designation
Discoverer Code:	B405	Discover designation and components
ADS number:	11643	Aitken Double Star catalog
HD number:	173427	HD catalog number
Hipparcos number:	92104	Hipparcos catalog number
V1:	8.66	Magnitude of the primary
V2:	9.30	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1991	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B405

WDS 6th Orbit including measures of B405

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

Ephemeris of B405

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.459    131.2
-------------------------
1982.0     0.306    188.5
1983.0     0.324    185.6
1984.0     0.340    183.0
1985.0     0.356    180.7
1986.0     0.371    178.5
1987.0     0.385    176.6
1988.0     0.399    174.7
1989.0     0.412    173.0
1990.0     0.424    171.4
1991.0     0.435    169.8
1992.0     0.446    168.4
1993.0     0.456    167.0
1994.0     0.465    165.6
1995.0     0.474    164.3
1996.0     0.482    163.1
1997.0     0.489    161.9
1998.0     0.496    160.7
1999.0     0.502    159.6
2000.0     0.507    158.5
2001.0     0.512    157.4
2002.0     0.516    156.3
2003.0     0.520    155.2
2004.0     0.523    154.2
2005.0     0.525    153.2
2006.0     0.527    152.1
2007.0     0.528    151.1
2008.0     0.529    150.1
2009.0     0.529    149.1
2010.0     0.529    148.1
2011.0     0.528    147.1
2012.0     0.526    146.0
2013.0     0.524    145.0
2014.0     0.522    144.0
2015.0     0.519    142.9
2016.0     0.515    141.9
2017.0     0.511    140.8
2018.0     0.506    139.7
2019.0     0.501    138.6
2020.0     0.495    137.4
2021.0     0.489    136.2
2022.0     0.482    135.0
2023.0     0.475    133.8
2024.0     0.467    132.5
2025.0     0.459    131.2
2026.0     0.450    129.8
2027.0     0.441    128.4
2028.0     0.431    126.9
2029.0     0.420    125.3
2030.0     0.410    123.7
2031.0     0.398    121.9
2032.0     0.386    120.1
2033.0     0.374    118.1
2034.0     0.362    116.0
2035.0     0.348    113.8
2036.0     0.335    111.4
2037.0     0.321    108.7
2038.0     0.307    105.8
2039.0     0.293    102.7
2040.0     0.278     99.2
2041.0     0.263     95.3
2042.0     0.249     91.0
2043.0     0.234     86.1
2044.0     0.221     80.6
2045.0     0.207     74.4
2046.0     0.195     67.4
2047.0     0.184     59.5
2048.0     0.175     50.7
2049.0     0.168     41.0
2050.0     0.163     30.7
2051.0     0.160     19.8
2052.0     0.158      8.6
2053.0     0.157    357.2
2054.0     0.155    345.6
2055.0     0.152    333.6
2056.0     0.147    320.9
2057.0     0.141    307.1
2058.0     0.136    292.2
2059.0     0.135    276.6
2060.0     0.138    261.2
2061.0     0.147    247.2
2062.0     0.160    235.1
2063.0     0.176    225.0
2064.0     0.194    216.7
2065.0     0.213    209.8
2066.0     0.233    204.1
2067.0     0.252    199.3

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.