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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:51:03

Orbital Elements for B1449BC

WDS:	B1449BC	WDS ID/Discoverer
P:	41.560	Orbital period (years)
a:	0.178	Semi-major axis (arcseconds)
i:	83.2	Inclination (degrees)
Ω:	25.6	Longitude of ascending node (degrees)
T:	2002.590	Epoch of periastron passage (year)
e:	0.345	Eccentricity
ω:	100.5	Longitude of periastron (degrees)
Start-Year:	2005.0	Year
End-Year:	2045.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1449BC

Position:	032558.97-355729.9	Epoch-2000 right ascension and declination
WDS-ID:	03260-3558	WDS designation
Discoverer Code:	B1449BC	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	21434	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.1	Magnitude of the primary
V2:	8.3	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B1449BC

WDS 6th Orbit including measures of B1449BC

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

Ephemeris of B1449BC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.078      5.4
-------------------------
2005.0     0.102    200.7
2006.0     0.125    203.1
2007.0     0.141    204.8
2008.0     0.151    206.2
2009.0     0.156    207.5
2010.0     0.156    208.7
2011.0     0.152    210.0
2012.0     0.145    211.4
2013.0     0.135    213.0
2014.0     0.123    214.8
2015.0     0.109    217.1
2016.0     0.094    220.0
2017.0     0.079    224.1
2018.0     0.063    230.3
2019.0     0.047    240.7
2020.0     0.034    260.1
2021.0     0.028    293.8
2022.0     0.033    328.2
2023.0     0.046    348.3
2024.0     0.062    359.1
2025.0     0.078      5.4
2026.0     0.094      9.6
2027.0     0.109     12.5
2028.0     0.124     14.8
2029.0     0.137     16.6
2030.0     0.150     18.1
2031.0     0.160     19.3
2032.0     0.168     20.5
2033.0     0.175     21.5
2034.0     0.178     22.5
2035.0     0.179     23.4
2036.0     0.176     24.4
2037.0     0.169     25.4
2038.0     0.158     26.6
2039.0     0.141     27.9
2040.0     0.120     29.7
2041.0     0.093     32.5
2042.0     0.061     37.8
2043.0     0.027     56.9
2044.0     0.021    164.2

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.