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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:11:12

Orbital Elements for B228

WDS:	B228	WDS ID/Discoverer
P:	44.483	Orbital period (years)
a:	0.173	Semi-major axis (arcseconds)
i:	63.6	Inclination (degrees)
Ω:	137.8	Longitude of ascending node (degrees)
T:	1952.295	Epoch of periastron passage (year)
e:	0.666	Eccentricity
ω:	164.9	Longitude of periastron (degrees)
Start-Year:	2003.0	Year
End-Year:	2047.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B228

Position:	122726.42-284258.4	Epoch-2000 right ascension and declination
WDS-ID:	12274-2843	WDS designation
Discoverer Code:	B228	Discover designation and components
ADS number:	8555	Aitken Double Star catalog
HD number:	108410	HD catalog number
Hipparcos number:	60775	Hipparcos catalog number
V1:	8.18	Magnitude of the primary
V2:	8.39	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2006	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for B228

WDS 6th Orbit including measures of B228

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

Ephemeris of B228

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.273    137.1
-------------------------
2003.0     0.100     94.8
2004.0     0.119    101.6
2005.0     0.138    106.4
2006.0     0.156    110.2
2007.0     0.172    113.1
2008.0     0.188    115.6
2009.0     0.202    117.8
2010.0     0.215    119.6
2011.0     0.226    121.3
2012.0     0.237    122.8
2013.0     0.247    124.1
2014.0     0.255    125.4
2015.0     0.262    126.6
2016.0     0.268    127.8
2017.0     0.273    128.8
2018.0     0.277    129.9
2019.0     0.280    130.9
2020.0     0.282    132.0
2021.0     0.283    133.0
2022.0     0.282    134.0
2023.0     0.280    135.0
2024.0     0.277    136.0
2025.0     0.273    137.1
2026.0     0.268    138.2
2027.0     0.261    139.3
2028.0     0.253    140.5
2029.0     0.243    141.9
2030.0     0.232    143.3
2031.0     0.219    144.9
2032.0     0.204    146.7
2033.0     0.187    148.8
2034.0     0.169    151.3
2035.0     0.148    154.5
2036.0     0.124    158.9
2037.0     0.098    165.4
2038.0     0.070    177.0
2039.0     0.044    203.4
2040.0     0.036    260.9
2041.0     0.053    303.9
2042.0     0.059    328.3
2043.0     0.052    353.8
2044.0     0.048     26.8
2045.0     0.056     57.8
2046.0     0.072     78.2

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.