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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:05:53

Orbital Elements for ZUC1AA,AB

WDS:	ZUC1AA,AB	WDS ID/Discoverer
P:	6.030	Orbital period (years)
a:	0.07113	Semi-major axis (arcseconds)
i:	96.981	Inclination (degrees)
Ω:	37.887	Longitude of ascending node (degrees)
T:	2004.402	Epoch of periastron passage (year)
e:	0.81079	Eccentricity
ω:	255.72	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 ZUC1AA,AB

Position:	113155.26-343627.4	Epoch-2000 right ascension and declination
WDS-ID:	11319-3436	WDS designation
Discoverer Code:	ZUC1AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.46k	Magnitude of the primary
V2:	8.39k	Magnitude of the secondary
Equinox:		Equinox
Date:	2013	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for ZUC1AA,AB

WDS 6th Orbit including measures of ZUC1AA,AB

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

Ephemeris of ZUC1AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.045     19.2
-------------------------
2022.0     0.030    228.8
2023.0     0.049     33.8
2024.0     0.058     27.1
2025.0     0.045     19.2
2026.0     0.025      0.2
2027.0     0.015    279.3

Disclaimer

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.