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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:33:13

Orbital Elements for ROSS1057

WDS:	ROSS1057	WDS ID/Discoverer
P:	14.500	Orbital period (years)
a:	0.0745	Semi-major axis (arcseconds)
i:	92.0	Inclination (degrees)
Ω:	21.0	Longitude of ascending node (degrees)
T:	1982.200	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	180.0	Longitude of periastron (degrees)
Start-Year:	2018.0	Year
End-Year:	2032.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for ROSS1057

Position:	154114.70+755940.7	Epoch-2000 right ascension and declination
WDS-ID:	15413+7559	WDS designation
Discoverer Code:	ROSS1057	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	76832	Hipparcos catalog number
V1:	12.2 v	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for ROSS1057

WDS 6th Orbit including measures of ROSS1057

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

Ephemeris of ROSS1057

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.071    201.6
-------------------------
2018.0     0.073     21.4
2019.0     0.072     20.5
2020.0     0.058     19.4
2021.0     0.034     17.0
2022.0     0.004    334.0
2023.0     0.029    205.7
2024.0     0.055    202.8
2025.0     0.071    201.6
2026.0     0.074    200.7
2027.0     0.063    199.7
2028.0     0.041    197.9
2029.0     0.011    187.2
2030.0     0.022     27.6
2031.0     0.049     23.3

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.