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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:16:41

Orbital Elements for MCA22

WDS:	MCA22	WDS ID/Discoverer
P:	31.740	Orbital period (years)
a:	0.092	Semi-major axis (arcseconds)
i:	36.9	Inclination (degrees)
Ω:	112.0	Longitude of ascending node (degrees)
T:	2036.410	Epoch of periastron passage (year)
e:	0.932	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	2010.0	Year
End-Year:	2040.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA22

Position:	054726.90-103158.5	Epoch-2000 right ascension and declination
WDS-ID:	05474-1032	WDS designation
Discoverer Code:	MCA22	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	38735	HD catalog number
Hipparcos number:	27341	Hipparcos catalog number
V1:	6.34	Magnitude of the primary
V2:	7.79	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 MCA22

WDS 6th Orbit including measures of MCA22

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

Ephemeris of MCA22

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.168    296.1
-------------------------
2010.0     0.121    280.0
2011.0     0.132    281.8
2012.0     0.142    283.3
2013.0     0.150    284.6
2014.0     0.157    285.8
2015.0     0.163    286.8
2016.0     0.168    287.8
2017.0     0.172    288.8
2018.0     0.175    289.7
2019.0     0.177    290.6
2020.0     0.178    291.5
2021.0     0.178    292.4
2022.0     0.177    293.3
2023.0     0.175    294.2
2024.0     0.172    295.1
2025.0     0.168    296.1
2026.0     0.164    297.1
2027.0     0.158    298.2
2028.0     0.151    299.3
2029.0     0.142    300.6
2030.0     0.133    302.1
2031.0     0.122    303.8
2032.0     0.108    305.9
2033.0     0.093    308.7
2034.0     0.074    312.7
2035.0     0.051    319.8
2036.0     0.019    345.9
2037.0     0.026    247.8
2038.0     0.056    265.9
2039.0     0.078    272.2

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.