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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:40:46

Orbital Elements for MCA44
WDS: MCA44 WDS ID/Discoverer
P: 3.794 Orbital period (years)
a: 0.039259999999999996 Semi-major axis (arcseconds)
i: 112.44 Inclination (degrees)
Ω: 249.02 Longitude of ascending node (degrees)
T: 1991.984 Epoch of periastron passage (year)
e: 0.72 Eccentricity
ω: 99.0 Longitude of periastron (degrees)
Start-Year: 2024.0 Year
End-Year: 2026.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA44
Position: 164517.79+564654.1 Epoch-2000 right ascension and declination
WDS-ID: 16453+5647 WDS designation
Discoverer Code: MCA44 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 151613 HD catalog number
Hipparcos number: 82020 Hipparcos catalog number
V1: 4.85 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: Equinox
Date: 1991 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for MCA44



WDS 6th Orbit including measures of MCA44

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


Ephemeris of MCA44
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.034    285.2
-------------------------
2024.0     0.026    329.2
2025.0     0.034    285.2






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


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.


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