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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:37:55

Orbital Elements for MCA8

WDS:	MCA8	WDS ID/Discoverer
P:	0.906	Orbital period (years)
a:	0.05318	Semi-major axis (arcseconds)
i:	128.17	Inclination (degrees)
Ω:	49.29	Longitude of ascending node (degrees)
T:	1993.340	Epoch of periastron passage (year)
e:	0.6574	Eccentricity
ω:	269.29	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA8

Position:	024214.93+401139.8	Epoch-2000 right ascension and declination
WDS-ID:	02422+4012	WDS designation
Discoverer Code:	MCA8	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	16739	HD catalog number
Hipparcos number:	12623	Hipparcos catalog number
V1:	5.5	Magnitude of the primary
V2:	5.9	Magnitude of the secondary
Equinox:		Equinox
Date:	2004	Date of last observation
Orbit grade:	8	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MCA8

WDS 6th Orbit including measures of MCA8

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

Ephemeris of MCA8

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.032    232.4
-------------------------

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.