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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:23:18

Orbital Elements for MCA2
WDS: MCA2 WDS ID/Discoverer
P: 5.740 Orbital period (years)
a: 0.027 Semi-major axis (arcseconds)
i: 161.0 Inclination (degrees)
Ω: 295.0 Longitude of ascending node (degrees)
T: 1982.320 Epoch of periastron passage (year)
e: 0.537 Eccentricity
ω: 321.0 Longitude of periastron (degrees)
Start-Year: 2023.0 Year
End-Year: 2027.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA2
Position: 005043.57+641451.3 Epoch-2000 right ascension and declination
WDS-ID: 00507+6415 WDS designation
Discoverer Code: MCA2 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 4775 HD catalog number
Hipparcos number: 3951 Hipparcos catalog number
V1: 5.7 Magnitude of the primary
V2: 6.8 Magnitude of the secondary
Equinox: Equinox
Date: 2020 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for MCA2



WDS 6th Orbit including measures of MCA2

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


Ephemeris of MCA2
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.040    160.8
-------------------------
2023.0     0.019    245.9
2024.0     0.033    187.9
2025.0     0.040    160.8
2026.0     0.040    138.4






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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