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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:15:20

Orbital Elements for CIA23AB1,2

WDS:	CIA23AB1,2	WDS ID/Discoverer
P:	0.082	Orbital period (years)
a:	0.0035870000000000003	Semi-major axis (arcseconds)
i:	22.11	Inclination (degrees)
Ω:	359.97	Longitude of ascending node (degrees)
T:	2019.518	Epoch of periastron passage (year)
e:	0.0761	Eccentricity
ω:	346.43	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CIA23AB1,2

Position:	203938.25+155443.4	Epoch-2000 right ascension and declination
WDS-ID:	20396+1555	WDS designation
Discoverer Code:	CIA23AB1,2	Discover designation and components
ADS number:	14121	Aitken Double Star catalog
HD number:	196867	HD catalog number
Hipparcos number:	101958	Hipparcos catalog number
V1:	3.86	Magnitude of the primary
V2:	6.43	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for CIA23AB1,2

WDS 6th Orbit including measures of CIA23AB1,2

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

Ephemeris of CIA23AB1,2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.003    253.7
-------------------------

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.