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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:36:51

Orbital Elements for MCA7
WDS: MCA7 WDS ID/Discoverer
P: 3.800 Orbital period (years)
a: 0.077 Semi-major axis (arcseconds)
i: 112.7 Inclination (degrees)
Ω: 145.0 Longitude of ascending node (degrees)
T: 2010.280 Epoch of periastron passage (year)
e: 0.017 Eccentricity
ω: 3.7 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 MCA7
Position: 023637.91+122651.4 Epoch-2000 right ascension and declination
WDS-ID: 02366+1227 WDS designation
Discoverer Code: MCA7 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 16234 HD catalog number
Hipparcos number: 12153 Hipparcos catalog number
V1: 5.68 Magnitude of the primary
V2: 5.78 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2010 Date of last observation
Orbit grade: 1 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for MCA7



WDS 6th Orbit including measures of MCA7

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


Ephemeris of MCA7
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.059    164.9
-------------------------
2024.0     0.061    305.7
2025.0     0.059    164.9






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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