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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:32:57

Orbital Elements for STF1066A

WDS:	STF1066A	WDS ID/Discoverer
P:	6.129	Orbital period (years)
a:	0.01431	Semi-major axis (arcseconds)
i:	92.4	Inclination (degrees)
Ω:	70.04	Longitude of ascending node (degrees)
T:	1901.222	Epoch of periastron passage (year)
e:	0.353	Eccentricity
ω:	214.6	Longitude of periastron (degrees)
Start-Year:	2022.0	Year
End-Year:	2028.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1066A

Position:	072007.39+215856.4	Epoch-2000 right ascension and declination
WDS-ID:	07201+2159	WDS designation
Discoverer Code:	STF1066A	Discover designation and components
ADS number:	5983	Aitken Double Star catalog
HD number:	56986	HD catalog number
Hipparcos number:	35550	Hipparcos catalog number
V1:	3.55	Magnitude of the primary
V2:	8.18	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 STF1066A

WDS 6th Orbit including measures of STF1066A

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

Ephemeris of STF1066A

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.012     71.7
-------------------------
2022.0     0.004     60.6
2023.0     0.008    253.0
2024.0     0.005    245.9
2025.0     0.012     71.7
2026.0     0.018     69.7
2027.0     0.015     68.1

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.