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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:15:53

Orbital Elements for CAR2

WDS:	CAR2	WDS ID/Discoverer
P:	14.730	Orbital period (years)
a:	0.2812	Semi-major axis (arcseconds)
i:	129.0	Inclination (degrees)
Ω:	78.9	Longitude of ascending node (degrees)
T:	2004.430	Epoch of periastron passage (year)
e:	0.6	Eccentricity
ω:	245.6	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 CAR2

Position:	204421.94+194457.9	Epoch-2000 right ascension and declination
WDS-ID:	20444+1945	WDS designation
Discoverer Code:	CAR2	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	352860	HD catalog number
Hipparcos number:	102357	Hipparcos catalog number
V1:	10.29	Magnitude of the primary
V2:	11.6	Magnitude of the secondary
Equinox:		Equinox
Date:	2020	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for CAR2

WDS 6th Orbit including measures of CAR2

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

Ephemeris of CAR2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.340     38.3
-------------------------
2018.0     0.176    278.5
2019.0     0.095    225.5
2020.0     0.144    103.1
2021.0     0.248     77.1
2022.0     0.305     64.5
2023.0     0.333     55.1
2024.0     0.343     46.6
2025.0     0.340     38.3
2026.0     0.327     29.6
2027.0     0.308     20.0
2028.0     0.285      8.9
2029.0     0.261    355.8
2030.0     0.238    340.1
2031.0     0.217    321.2

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.