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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:04:44

Orbital Elements for RST4036

WDS:	RST4036	WDS ID/Discoverer
P:	7.680	Orbital period (years)
a:	0.244	Semi-major axis (arcseconds)
i:	124.7	Inclination (degrees)
Ω:	200.2	Longitude of ascending node (degrees)
T:	1995.057	Epoch of periastron passage (year)
e:	0.263	Eccentricity
ω:	241.0	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 RST4036

Position:	191642.89-455321.0	Epoch-2000 right ascension and declination
WDS-ID:	19167-4553	WDS designation
Discoverer Code:	RST4036	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	179930	HD catalog number
Hipparcos number:	94739	Hipparcos catalog number
V1:	10.20	Magnitude of the primary
V2:	10.20	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for RST4036

WDS 6th Orbit including measures of RST4036

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

Ephemeris of RST4036

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.201     19.6
-------------------------
2022.0     0.210    152.3
2023.0     0.167    106.4
2024.0     0.193     56.3
2025.0     0.201     19.6
2026.0     0.107    308.3
2027.0     0.201    220.0

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.