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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:26:27

Orbital Elements for A2983

WDS:	A2983	WDS ID/Discoverer
P:	10.005	Orbital period (years)
a:	0.125174	Semi-major axis (arcseconds)
i:	44.44	Inclination (degrees)
Ω:	319.48	Longitude of ascending node (degrees)
T:	1988.130	Epoch of periastron passage (year)
e:	0.4994	Eccentricity
ω:	162.22	Longitude of periastron (degrees)
Start-Year:	2020.0	Year
End-Year:	2030.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2983

Position:	144913.62+101252.0	Epoch-2000 right ascension and declination
WDS-ID:	14492+1013	WDS designation
Discoverer Code:	A2983	Discover designation and components
ADS number:	9397	Aitken Double Star catalog
HD number:	130669	HD catalog number
Hipparcos number:	72479	Hipparcos catalog number
V1:	9.36	Magnitude of the primary
V2:	9.27	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	1	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2983

WDS 6th Orbit including measures of A2983

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

Ephemeris of A2983

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.167    326.5
-------------------------
2020.0     0.097    252.1
2021.0     0.136    278.4
2022.0     0.166    293.7
2023.0     0.182    305.0
2024.0     0.183    315.3
2025.0     0.167    326.5
2026.0     0.132    341.9
2027.0     0.079     14.5
2028.0     0.058    111.8
2029.0     0.068    195.8

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.