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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:11:31

Orbital Elements for MKT10AA,AB

WDS:	MKT10AA,AB	WDS ID/Discoverer
P:	0.047	Orbital period (years)
a:	0.0032	Semi-major axis (arcseconds)
i:	142.0	Inclination (degrees)
Ω:	95.0	Longitude of ascending node (degrees)
T:	1964.106	Epoch of periastron passage (year)
e:	0.59	Eccentricity
ω:	211.0	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 MKT10AA,AB

Position:	201118.26-004917.3	Epoch-2000 right ascension and declination
WDS-ID:	20113-0049	WDS designation
Discoverer Code:	MKT10AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	191692	HD catalog number
Hipparcos number:	99473	Hipparcos catalog number
V1:	3.23	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	1	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MKT10AA,AB

WDS 6th Orbit including measures of MKT10AA,AB

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

Ephemeris of MKT10AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.003     18.8
-------------------------

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.