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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:01:01

Orbital Elements for G146-72

WDS:	G146-72	WDS ID/Discoverer
P:	6.700	Orbital period (years)
a:	0.03	Semi-major axis (arcseconds)
i:	59.1	Inclination (degrees)
Ω:	99.3	Longitude of ascending node (degrees)
T:	1973.700	Epoch of periastron passage (year)
e:	0.22	Eccentricity
ω:	12.3	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 G146-72

Position:	105505.83+471428.9	Epoch-2000 right ascension and declination
WDS-ID:	10551+4714	WDS designation
Discoverer Code:	G146-72	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	12.7	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1975	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for G146-72

WDS 6th Orbit including measures of G146-72

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

Ephemeris of G146-72

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.026    311.5
-------------------------
2022.0     0.018    228.7
2023.0     0.033    267.4
2024.0     0.036    286.6
2025.0     0.026    311.5
2026.0     0.015     23.1
2027.0     0.023     92.4

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.