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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:33:16

Orbital Elements for MCA30AA

WDS:	MCA30AA	WDS ID/Discoverer
P:	0.005	Orbital period (years)
a:	0.0005973	Semi-major axis (arcseconds)
i:	69.9	Inclination (degrees)
Ω:	145.0	Longitude of ascending node (degrees)
T:	2006.864	Epoch of periastron passage (year)
e:	0.0012	Eccentricity
ω:	151.0	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 MCA30AA

Position:	072744.39+212644.0	Epoch-2000 right ascension and declination
WDS-ID:	07277+2127	WDS designation
Discoverer Code:	MCA30AA	Discover designation and components
ADS number:	6089	Aitken Double Star catalog
HD number:	58728	HD catalog number
Hipparcos number:	36238	Hipparcos catalog number
V1:	5.26	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MCA30AA

WDS 6th Orbit including measures of MCA30AA

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

Ephemeris of MCA30AA

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.000     66.5
-------------------------

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.