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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:35:45

Orbital Elements for BLA10AB
WDS: BLA10AB WDS ID/Discoverer
P: 2.252 Orbital period (years)
a: 0.3473 Semi-major axis (arcseconds)
i: 112.6 Inclination (degrees)
Ω: 341.2 Longitude of ascending node (degrees)
T: 2000.729 Epoch of periastron passage (year)
e: 0.439 Eccentricity
ω: 158.7 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 BLA10AB
Position: 223832.26-151818.8 Epoch-2000 right ascension and declination
WDS-ID: 22385-1519 WDS designation
Discoverer Code: BLA10AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 12.2 Magnitude of the primary
V2: 12.9 Magnitude of the secondary
Equinox: Equinox
Date: 1999 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BLA10AB



WDS 6th Orbit including measures of BLA10AB

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


Ephemeris of BLA10AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.342    328.6
-------------------------
2024.0     0.329      5.1
2025.0     0.342    328.6






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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