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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:36:36

Orbital Elements for RSS145A

WDS:	RSS145A	WDS ID/Discoverer
P:	6.645	Orbital period (years)
a:	0.025	Semi-major axis (arcseconds)
i:	66.0	Inclination (degrees)
Ω:	319.0	Longitude of ascending node (degrees)
T:	1994.673	Epoch of periastron passage (year)
e:	0.66	Eccentricity
ω:	92.0	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 RSS145A

Position:	075411.34-372916.6	Epoch-2000 right ascension and declination
WDS-ID:	07542-3729	WDS designation
Discoverer Code:	RSS145A	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	38596	Hipparcos catalog number
V1:	10.0	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1993	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for RSS145A

WDS 6th Orbit including measures of RSS145A

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

Ephemeris of RSS145A

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.018    248.8
-------------------------
2022.0     0.019    153.8
2023.0     0.019    181.1
2024.0     0.017    213.1
2025.0     0.018    248.8
2026.0     0.020    278.1
2027.0     0.020    302.2

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.