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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:13:19

Orbital Elements for STT103A

WDS:	STT103A	WDS ID/Discoverer
P:	1.190	Orbital period (years)
a:	0.00724	Semi-major axis (arcseconds)
i:	52.93	Inclination (degrees)
Ω:	56.2	Longitude of ascending node (degrees)
T:	1991.249	Epoch of periastron passage (year)
e:	0.1	Eccentricity
ω:	40.0	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 STT103A

Position:	051810.56+332217.8	Epoch-2000 right ascension and declination
WDS-ID:	05182+3322	WDS designation
Discoverer Code:	STT103A	Discover designation and components
ADS number:	3872	Aitken Double Star catalog
HD number:	34334	HD catalog number
Hipparcos number:	24727	Hipparcos catalog number
V1:	4.8	Magnitude of the primary
V2:	10.6	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 STT103A

WDS 6th Orbit including measures of STT103A

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

Ephemeris of STT103A

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.008    233.3
-------------------------

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.