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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:09:32

Orbital Elements for B454

WDS:	B454	WDS ID/Discoverer
P:	47.210	Orbital period (years)
a:	0.196	Semi-major axis (arcseconds)
i:	78.8	Inclination (degrees)
Ω:	153.8	Longitude of ascending node (degrees)
T:	2006.840	Epoch of periastron passage (year)
e:	0.764	Eccentricity
ω:	32.0	Longitude of periastron (degrees)
Start-Year:	2002.0	Year
End-Year:	2048.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B454

Position:	195308.30-252741.2	Epoch-2000 right ascension and declination
WDS-ID:	19531-2528	WDS designation
Discoverer Code:	B454	Discover designation and components
ADS number:	13048	Aitken Double Star catalog
HD number:	187858	HD catalog number
Hipparcos number:	97851	Hipparcos catalog number
V1:	8.71	Magnitude of the primary
V2:	8.87	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for B454

WDS 6th Orbit including measures of B454

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

Ephemeris of B454

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.307    338.6
-------------------------
2002.0     0.046     19.0
2003.0     0.030     47.1
2004.0     0.028     97.8
2005.0     0.041    131.1
2006.0     0.052    147.5
2007.0     0.033    165.2
2008.0     0.025    303.5
2009.0     0.073    323.1
2010.0     0.112    327.5
2011.0     0.145    329.8
2012.0     0.173    331.2
2013.0     0.196    332.3
2014.0     0.216    333.2
2015.0     0.234    333.9
2016.0     0.249    334.5
2017.0     0.261    335.1
2018.0     0.272    335.6
2019.0     0.282    336.1
2020.0     0.289    336.5
2021.0     0.295    337.0
2022.0     0.300    337.4
2023.0     0.304    337.8
2024.0     0.306    338.2
2025.0     0.307    338.6
2026.0     0.307    338.9
2027.0     0.306    339.3
2028.0     0.304    339.7
2029.0     0.301    340.1
2030.0     0.297    340.5
2031.0     0.293    341.0
2032.0     0.287    341.4
2033.0     0.280    341.9
2034.0     0.272    342.3
2035.0     0.264    342.8
2036.0     0.254    343.4
2037.0     0.244    344.0
2038.0     0.233    344.6
2039.0     0.221    345.3
2040.0     0.208    346.1
2041.0     0.194    347.1
2042.0     0.179    348.1
2043.0     0.163    349.4
2044.0     0.146    350.9
2045.0     0.128    352.9
2046.0     0.110    355.5
2047.0     0.090    359.2

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.