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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:41:14

Orbital Elements for MCA74AA,AB
WDS: MCA74AA,AB WDS ID/Discoverer
P: 6.326 Orbital period (years)
a: 0.191 Semi-major axis (arcseconds)
i: 49.887 Inclination (degrees)
Ω: 341.296 Longitude of ascending node (degrees)
T: 1980.739 Epoch of periastron passage (year)
e: 0.16 Eccentricity
ω: 213.227 Longitude of periastron (degrees)
Start-Year: 2022.0 Year
End-Year: 2028.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA74AA,AB
Position: 231906.66-132730.8 Epoch-2000 right ascension and declination
WDS-ID: 23191-1328 WDS designation
Discoverer Code: MCA74AA,AB Discover designation and components
ADS number: 16672 Aitken Double Star catalog
HD number: 219834 HD catalog number
Hipparcos number: 115126 Hipparcos catalog number
V1: 5.20 Magnitude of the primary
V2: 6.7 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 MCA74AA,AB



WDS 6th Orbit including measures of MCA74AA,AB

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


Ephemeris of MCA74AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.147    182.9
-------------------------
2022.0     0.194      9.0
2023.0     0.135     60.6
2024.0     0.154    131.2
2025.0     0.147    182.9
2026.0     0.120    274.9
2027.0     0.200    329.0






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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