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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:20:30

Orbital Elements for HD202206AB,C

WDS:	HD202206AB,C	WDS ID/Discoverer
P:	3.450	Orbital period (years)
a:	0.00076	Semi-major axis (arcseconds)
i:	7.7	Inclination (degrees)
Ω:	91.0	Longitude of ascending node (degrees)
T:	2004.267	Epoch of periastron passage (year)
e:	0.22	Eccentricity
ω:	280.0	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 HD202206AB,C

Position:	211457.79-204720.1	Epoch-2000 right ascension and declination
WDS-ID:	21150-2047	WDS designation
Discoverer Code:	HD202206AB,C	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	202206	HD catalog number
Hipparcos number:	104903	Hipparcos catalog number
V1:	8.07	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2010	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HD202206AB,C

WDS 6th Orbit including measures of HD202206AB,C

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

Ephemeris of HD202206AB,C

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.001     16.9
-------------------------
2024.0     0.001    247.5
2025.0     0.001     16.9

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.