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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:01:32

Orbital Elements for BU648B
WDS: BU648B WDS ID/Discoverer
P: 2.782 Orbital period (years)
a: 0.000241 Semi-major axis (arcseconds)
i: 115.8 Inclination (degrees)
Ω: 69.0 Longitude of ascending node (degrees)
T: 2005.583 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 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 BU648B
Position: 185701.47+325405.8 Epoch-2000 right ascension and declination
WDS-ID: 18570+3254 WDS designation
Discoverer Code: BU648B Discover designation and components
ADS number: 11871 Aitken Double Star catalog
HD number: 176051 HD catalog number
Hipparcos number: 93017 Hipparcos catalog number
V1: 7.96 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU648B



WDS 6th Orbit including measures of BU648B

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


Ephemeris of BU648B
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.000     72.1
-------------------------
2024.0     0.000    226.5
2025.0     0.000     72.1






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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