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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:02:43

Orbital Elements for VB102AA,AB

WDS:	VB102AA,AB	WDS ID/Discoverer
P:	2.010	Orbital period (years)
a:	0.037	Semi-major axis (arcseconds)
i:	144.0	Inclination (degrees)
Ω:	319.3	Longitude of ascending node (degrees)
T:	1999.818	Epoch of periastron passage (year)
e:	0.405	Eccentricity
ω:	339.2	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 VB102AA,AB

Position:	043731.98+150847.2	Epoch-2000 right ascension and declination
WDS-ID:	04375+1509	WDS designation
Discoverer Code:	VB102AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	29310	HD catalog number
Hipparcos number:	21543	Hipparcos catalog number
V1:	7.6	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for VB102AA,AB

WDS 6th Orbit including measures of VB102AA,AB

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

Ephemeris of VB102AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.051    152.2
-------------------------
2024.0     0.023    312.2
2025.0     0.051    152.2

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.