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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:21:05

Orbital Elements for VYS2B

WDS:	VYS2B	WDS ID/Discoverer
P:	15.000	Orbital period (years)
a:	0.348	Semi-major axis (arcseconds)
i:	47.0	Inclination (degrees)
Ω:	175.0	Longitude of ascending node (degrees)
T:	2010.000	Epoch of periastron passage (year)
e:	0.083	Eccentricity
ω:	347.0	Longitude of periastron (degrees)
Start-Year:	2018.0	Year
End-Year:	2032.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for VYS2B

Position:	003229.43+671408.4	Epoch-2000 right ascension and declination
WDS-ID:	00321+6715	WDS designation
Discoverer Code:	VYS2B	Discover designation and components
ADS number:	440	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	2552B	Hipparcos catalog number
V1:	12.20	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for VYS2B

WDS 6th Orbit including measures of VYS2B

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

Ephemeris of VYS2B

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.315    166.1
-------------------------
2018.0     0.376    353.1
2019.0     0.363      7.4
2020.0     0.323     24.1
2021.0     0.270     46.7
2022.0     0.234     78.7
2023.0     0.242    114.9
2024.0     0.282    144.1
2025.0     0.315    166.1
2026.0     0.316    185.5
2027.0     0.287    207.1
2028.0     0.250    234.7
2029.0     0.241    268.4
2030.0     0.272    299.1
2031.0     0.321    321.8

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.