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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:43:41

Orbital Elements for B2077A

WDS:	B2077A	WDS ID/Discoverer
P:	2.303	Orbital period (years)
a:	0.0101	Semi-major axis (arcseconds)
i:	123.0	Inclination (degrees)
Ω:	285.0	Longitude of ascending node (degrees)
T:	1992.592	Epoch of periastron passage (year)
e:	0.28	Eccentricity
ω:	114.0	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 B2077A

Position:	024544.77-394301.8	Epoch-2000 right ascension and declination
WDS-ID:	02457-3943	WDS designation
Discoverer Code:	B2077A	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	17354	HD catalog number
Hipparcos number:	12894	Hipparcos catalog number
V1:	7.79	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1991	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B2077A

WDS 6th Orbit including measures of B2077A

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

Ephemeris of B2077A

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.008    115.5
-------------------------
2024.0     0.011    306.1
2025.0     0.008    115.5

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.