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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:26:13

Orbital Elements for BTZ1AA,AB
WDS: BTZ1AA,AB WDS ID/Discoverer
P: 19.108 Orbital period (years)
a: 0.082 Semi-major axis (arcseconds)
i: 74.5 Inclination (degrees)
Ω: 300.9 Longitude of ascending node (degrees)
T: 2011.350 Epoch of periastron passage (year)
e: 0.238 Eccentricity
ω: 42.0 Longitude of periastron (degrees)
Start-Year: 2016.0 Year
End-Year: 2034.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BTZ1AA,AB
Position: 062857.79+201243.8 Epoch-2000 right ascension and declination
WDS-ID: 06290+2013 WDS designation
Discoverer Code: BTZ1AA,AB Discover designation and components
ADS number: 5103 Aitken Double Star catalog
HD number: 45542 HD catalog number
Hipparcos number: 30883 Hipparcos catalog number
V1: 4.10 Magnitude of the primary
V2: 5.1 Magnitude of the secondary
Equinox: Equinox
Date: 2019 Date of last observation
Orbit grade: 2 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BTZ1AA,AB



WDS 6th Orbit including measures of BTZ1AA,AB

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


Ephemeris of BTZ1AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.025    228.9
-------------------------
2016.0     0.079    114.2
2017.0     0.090    118.7
2018.0     0.095    122.5
2019.0     0.094    126.1
2020.0     0.088    130.1
2021.0     0.076    135.0
2022.0     0.062    141.9
2023.0     0.045    153.8
2024.0     0.029    179.3
2025.0     0.025    228.9
2026.0     0.037    266.1
2027.0     0.052    283.0
2028.0     0.064    292.7
2029.0     0.066    300.3
2030.0     0.056    308.9
2031.0     0.036    324.9
2032.0     0.018     25.6
2033.0     0.035     90.3






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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