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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:16:26

Orbital Elements for MCA63AA,AB

WDS:	MCA63AA,AB	WDS ID/Discoverer
P:	11.630	Orbital period (years)
a:	0.048	Semi-major axis (arcseconds)
i:	135.0	Inclination (degrees)
Ω:	150.0	Longitude of ascending node (degrees)
T:	1982.190	Epoch of periastron passage (year)
e:	0.524	Eccentricity
ω:	272.0	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA63AA,AB

Position:	204724.53+362926.7	Epoch-2000 right ascension and declination
WDS-ID:	20474+3629	WDS designation
Discoverer Code:	MCA63AA,AB	Discover designation and components
ADS number:	14296	Aitken Double Star catalog
HD number:	198183	HD catalog number
Hipparcos number:	102589	Hipparcos catalog number
V1:	5.4	Magnitude of the primary
V2:	5.8	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MCA63AA,AB

WDS 6th Orbit including measures of MCA63AA,AB

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

Ephemeris of MCA63AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.051     23.5
-------------------------
2020.0     0.049    105.5
2021.0     0.051     88.1
2022.0     0.051     71.6
2023.0     0.052     55.5
2024.0     0.052     39.6
2025.0     0.051     23.5
2026.0     0.049      6.7
2027.0     0.043    346.8
2028.0     0.028    313.4
2029.0     0.020    195.8

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.