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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:12:22

Orbital Elements for BU1047BC

WDS:	BU1047BC	WDS ID/Discoverer
P:	34.380	Orbital period (years)
a:	0.282	Semi-major axis (arcseconds)
i:	122.4	Inclination (degrees)
Ω:	30.9	Longitude of ascending node (degrees)
T:	2001.210	Epoch of periastron passage (year)
e:	0.944	Eccentricity
ω:	114.9	Longitude of periastron (degrees)
Start-Year:	2008.0	Year
End-Year:	2042.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU1047BC

Position:	050945.44+280201.6	Epoch-2000 right ascension and declination
WDS-ID:	05098+2802	WDS designation
Discoverer Code:	BU1047BC	Discover designation and components
ADS number:	3730	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	24020	Hipparcos catalog number
V1:	9.11	Magnitude of the primary
V2:	9.71	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2007	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BU1047BC

WDS 6th Orbit including measures of BU1047BC

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

Ephemeris of BU1047BC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.343     72.2
-------------------------
2008.0     0.234     96.9
2009.0     0.253     94.5
2010.0     0.270     92.3
2011.0     0.285     90.4
2012.0     0.299     88.7
2013.0     0.311     87.1
2014.0     0.322     85.6
2015.0     0.332     84.2
2016.0     0.339     82.9
2017.0     0.346     81.7
2018.0     0.351     80.5
2019.0     0.354     79.3
2020.0     0.357     78.1
2021.0     0.357     77.0
2022.0     0.356     75.8
2023.0     0.354     74.6
2024.0     0.349     73.5
2025.0     0.343     72.2
2026.0     0.335     71.0
2027.0     0.325     69.6
2028.0     0.312     68.2
2029.0     0.297     66.6
2030.0     0.279     64.8
2031.0     0.256     62.7
2032.0     0.229     60.2
2033.0     0.196     57.0
2034.0     0.151     52.1
2035.0     0.085     41.2
2036.0     0.046    167.8
2037.0     0.087    132.2
2038.0     0.122    118.5
2039.0     0.152    110.6
2040.0     0.179    105.2
2041.0     0.204    101.2

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.