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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:01:28

Orbital Elements for VA627

WDS:	VA627	WDS ID/Discoverer
P:	2.311	Orbital period (years)
a:	0.01458	Semi-major axis (arcseconds)
i:	134.1	Inclination (degrees)
Ω:	251.0	Longitude of ascending node (degrees)
T:	1992.098	Epoch of periastron passage (year)
e:	0.2	Eccentricity
ω:	334.0	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 VA627

Position:	043137.04+174235.5	Epoch-2000 right ascension and declination
WDS-ID:	04316+1743	WDS designation
Discoverer Code:	VA627	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	28634	HD catalog number
Hipparcos number:	21123	Hipparcos catalog number
V1:	9.52	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	2009	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for VA627

WDS 6th Orbit including measures of VA627

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

Ephemeris of VA627

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.010    171.3
-------------------------
2024.0     0.011     19.0
2025.0     0.010    171.3

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.