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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:33:15

Orbital Elements for SHJ22A

WDS:	SHJ22A	WDS ID/Discoverer
P:	4.425	Orbital period (years)
a:	0.03932	Semi-major axis (arcseconds)
i:	148.25	Inclination (degrees)
Ω:	64.59	Longitude of ascending node (degrees)
T:	1990.211	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	2023.0	Year
End-Year:	2027.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SHJ22A

Position:	020507.05+771653.2	Epoch-2000 right ascension and declination
WDS-ID:	02051+7717	WDS designation
Discoverer Code:	SHJ22A	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	12230	HD catalog number
Hipparcos number:	9727	Hipparcos catalog number
V1:	5.28	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1991	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for SHJ22A

WDS 6th Orbit including measures of SHJ22A

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

Ephemeris of SHJ22A

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.036    109.8
-------------------------
2023.0     0.038    273.1
2024.0     0.036    200.4
2025.0     0.036    109.8
2026.0     0.038     37.1

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.