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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:25:55

Orbital Elements for MCA26

WDS:	MCA26	WDS ID/Discoverer
P:	42.841	Orbital period (years)
a:	0.087	Semi-major axis (arcseconds)
i:	82.5	Inclination (degrees)
Ω:	149.3	Longitude of ascending node (degrees)
T:	2020.594	Epoch of periastron passage (year)
e:	0.074	Eccentricity
ω:	236.8	Longitude of periastron (degrees)
Start-Year:	2004.0	Year
End-Year:	2046.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA26

Position:	062532.94+231938.0	Epoch-2000 right ascension and declination
WDS-ID:	06255+2320	WDS designation
Discoverer Code:	MCA26	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	44927	HD catalog number
Hipparcos number:	30570	Hipparcos catalog number
V1:	6.06	Magnitude of the primary
V2:	6.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2013	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MCA26

WDS 6th Orbit including measures of MCA26

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

Ephemeris of MCA26

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.017    110.8
-------------------------
2004.0     0.013    255.8
2005.0     0.019    292.1
2006.0     0.029    306.7
2007.0     0.040    313.8
2008.0     0.050    318.0
2009.0     0.059    320.8
2010.0     0.067    322.9
2011.0     0.073    324.6
2012.0     0.078    326.0
2013.0     0.082    327.3
2014.0     0.083    328.5
2015.0     0.083    329.7
2016.0     0.080    331.0
2017.0     0.076    332.3
2018.0     0.069    333.9
2019.0     0.061    335.8
2020.0     0.051    338.5
2021.0     0.040    342.4
2022.0     0.029    349.6
2023.0     0.017      6.4
2024.0     0.011     58.0
2025.0     0.017    110.8
2026.0     0.028    128.2
2027.0     0.040    135.4
2028.0     0.051    139.4
2029.0     0.062    142.0
2030.0     0.070    143.9
2031.0     0.078    145.4
2032.0     0.083    146.7
2033.0     0.087    147.9
2034.0     0.090    148.9
2035.0     0.090    149.9
2036.0     0.089    150.9
2037.0     0.087    152.0
2038.0     0.082    153.2
2039.0     0.077    154.5
2040.0     0.070    156.0
2041.0     0.061    158.0
2042.0     0.052    160.5
2043.0     0.042    164.3
2044.0     0.032    170.3
2045.0     0.022    182.2

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.