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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:29:50

Orbital Elements for CRC72

WDS:	CRC72	WDS ID/Discoverer
P:	12.630	Orbital period (years)
a:	0.245	Semi-major axis (arcseconds)
i:	56.8	Inclination (degrees)
Ω:	68.2	Longitude of ascending node (degrees)
T:	2021.870	Epoch of periastron passage (year)
e:	0.54	Eccentricity
ω:	41.7	Longitude of periastron (degrees)
Start-Year:	2019.0	Year
End-Year:	2031.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CRC72

Position:	151911.82-124506.2	Epoch-2000 right ascension and declination
WDS-ID:	15192-1245	WDS designation
Discoverer Code:	CRC72	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.0	Magnitude of the primary
V2:	13.4	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for CRC72

WDS 6th Orbit including measures of CRC72

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

Ephemeris of CRC72

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.304    250.7
-------------------------
2019.0     0.163    325.7
2020.0     0.135      2.9
2021.0     0.136     46.4
2022.0     0.082    107.6
2023.0     0.140    218.0
2024.0     0.243    240.3
2025.0     0.304    250.7
2026.0     0.332    258.4
2027.0     0.335    265.4
2028.0     0.318    272.7
2029.0     0.286    281.3
2030.0     0.242    292.7

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.