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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:07:28

Orbital Elements for MLR224

WDS:	MLR224	WDS ID/Discoverer
P:	11.897	Orbital period (years)
a:	0.18938	Semi-major axis (arcseconds)
i:	80.377	Inclination (degrees)
Ω:	292.78	Longitude of ascending node (degrees)
T:	2016.960	Epoch of periastron passage (year)
e:	0.2428	Eccentricity
ω:	250.18	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 MLR224

Position:	193905.98+762518.0	Epoch-2000 right ascension and declination
WDS-ID:	19391+7625	WDS designation
Discoverer Code:	MLR224	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	186922	HD catalog number
Hipparcos number:	96656	Hipparcos catalog number
V1:	8.67	Magnitude of the primary
V2:	9.35	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MLR224

WDS 6th Orbit including measures of MLR224

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

Ephemeris of MLR224

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.088     90.4
-------------------------
2020.0     0.199    294.2
2021.0     0.187    298.8
2022.0     0.144    305.2
2023.0     0.082    319.9
2024.0     0.039     30.0
2025.0     0.088     90.4
2026.0     0.145    103.8
2027.0     0.169    110.6
2028.0     0.134    117.8
2029.0     0.039    149.8

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.