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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:07:50

Orbital Elements for CHR88AA,AB

WDS:	CHR88AA,AB	WDS ID/Discoverer
P:	10.155	Orbital period (years)
a:	0.0631	Semi-major axis (arcseconds)
i:	180.0	Inclination (degrees)
Ω:	191.2	Longitude of ascending node (degrees)
T:	2012.847	Epoch of periastron passage (year)
e:	0.463	Eccentricity
ω:	0.0	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 CHR88AA,AB

Position:	194043.31-003716.7	Epoch-2000 right ascension and declination
WDS-ID:	19407-0037	WDS designation
Discoverer Code:	CHR88AA,AB	Discover designation and components
ADS number:	12775	Aitken Double Star catalog
HD number:	185762	HD catalog number
Hipparcos number:	96807	Hipparcos catalog number
V1:	5.9	Magnitude of the primary
V2:	7.6	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for CHR88AA,AB

WDS 6th Orbit including measures of CHR88AA,AB

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

Ephemeris of CHR88AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.067     67.5
-------------------------
2020.0     0.081    337.9
2021.0     0.067    315.1
2022.0     0.048    276.1
2023.0     0.034    191.4
2024.0     0.048    106.5
2025.0     0.067     67.5
2026.0     0.081     44.6
2027.0     0.089     27.4
2028.0     0.092     12.4
2029.0     0.090    357.5

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.