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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:12:04

Orbital Elements for MCA60AB

WDS:	MCA60AB	WDS ID/Discoverer
P:	45.400	Orbital period (years)
a:	0.177	Semi-major axis (arcseconds)
i:	85.2	Inclination (degrees)
Ω:	142.3	Longitude of ascending node (degrees)
T:	2012.400	Epoch of periastron passage (year)
e:	0.595	Eccentricity
ω:	182.1	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 MCA60AB

Position:	201546.16+274851.2	Epoch-2000 right ascension and declination
WDS-ID:	20158+2749	WDS designation
Discoverer Code:	MCA60AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	192806	HD catalog number
Hipparcos number:	99874	Hipparcos catalog number
V1:	4.80	Magnitude of the primary
V2:	6.94	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MCA60AB

WDS 6th Orbit including measures of MCA60AB

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

Ephemeris of MCA60AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.216    140.0
-------------------------
2003.0     0.153    146.7
2004.0     0.132    147.6
2005.0     0.109    148.7
2006.0     0.085    150.5
2007.0     0.058    153.9
2008.0     0.031    163.3
2009.0     0.010    237.6
2010.0     0.031    307.8
2011.0     0.056    317.1
2012.0     0.071    321.2
2013.0     0.067    324.5
2014.0     0.047    329.7
2015.0     0.019    348.3
2016.0     0.017    106.5
2017.0     0.045    128.4
2018.0     0.074    133.4
2019.0     0.100    135.6
2020.0     0.124    137.0
2021.0     0.146    137.9
2022.0     0.167    138.6
2023.0     0.185    139.1
2024.0     0.201    139.6
2025.0     0.216    140.0
2026.0     0.229    140.3
2027.0     0.241    140.6
2028.0     0.251    140.9
2029.0     0.260    141.1
2030.0     0.267    141.4
2031.0     0.273    141.6
2032.0     0.277    141.8
2033.0     0.280    142.0
2034.0     0.282    142.2
2035.0     0.282    142.5
2036.0     0.281    142.7
2037.0     0.279    142.9
2038.0     0.275    143.1
2039.0     0.270    143.3
2040.0     0.264    143.6
2041.0     0.256    143.8
2042.0     0.247    144.1
2043.0     0.237    144.4
2044.0     0.224    144.7
2045.0     0.211    145.0
2046.0     0.196    145.4

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.