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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:46:21

Orbital Elements for RED11

WDS:	RED11	WDS ID/Discoverer
P:	7.257	Orbital period (years)
a:	0.06812	Semi-major axis (arcseconds)
i:	87.18	Inclination (degrees)
Ω:	66.76	Longitude of ascending node (degrees)
T:	2017.505	Epoch of periastron passage (year)
e:	0.181	Eccentricity
ω:	317.4	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 RED11

Position:	092012.23+351742.9	Epoch-2000 right ascension and declination
WDS-ID:	09202+3518	WDS designation
Discoverer Code:	RED11	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	19.83r	Magnitude of the primary
V2:	20.71r	Magnitude of the secondary
Equinox:		Equinox
Date:	2013	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for RED11

WDS 6th Orbit including measures of RED11

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

Ephemeris of RED11

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.051     65.4
-------------------------
2022.0     0.076    246.2
2023.0     0.061    248.4
2024.0     0.007    273.2
2025.0     0.051     65.4
2026.0     0.050     69.0
2027.0     0.006    102.3

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.