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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:48:03

Orbital Elements for SAO17572

WDS:	SAO17572	WDS ID/Discoverer
P:	6.085	Orbital period (years)
a:	0.0197	Semi-major axis (arcseconds)
i:	30.0	Inclination (degrees)
Ω:	169.7	Longitude of ascending node (degrees)
T:	2014.679	Epoch of periastron passage (year)
e:	0.31	Eccentricity
ω:	280.6	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 SAO17572

Position:	173640.01+693414.8	Epoch-2000 right ascension and declination
WDS-ID:	17367+6934	WDS designation
Discoverer Code:	SAO17572	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	160933	HD catalog number
Hipparcos number:	86184	Hipparcos catalog number
V1:	6.42	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for SAO17572

WDS 6th Orbit including measures of SAO17572

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

Ephemeris of SAO17572

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.022    316.3
-------------------------
2022.0     0.019    195.8
2023.0     0.022    240.6
2024.0     0.023    279.1
2025.0     0.022    316.3
2026.0     0.017      4.0
2027.0     0.012    111.6

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.