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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:17:35

Orbital Elements for PEA1AA,AB

WDS:	PEA1AA,AB	WDS ID/Discoverer
P:	0.056	Orbital period (years)
a:	0.00983	Semi-major axis (arcseconds)
i:	60.5	Inclination (degrees)
Ω:	106.0	Longitude of ascending node (degrees)
T:	1989.299	Epoch of periastron passage (year)
e:	0.5354	Eccentricity
ω:	104.3	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for PEA1AA,AB

Position:	132355.42+545531.5	Epoch-2000 right ascension and declination
WDS-ID:	13239+5456	WDS designation
Discoverer Code:	PEA1AA,AB	Discover designation and components
ADS number:	8891	Aitken Double Star catalog
HD number:	116656	HD catalog number
Hipparcos number:	65378	Hipparcos catalog number
V1:	2.23	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1997	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for PEA1AA,AB

WDS 6th Orbit including measures of PEA1AA,AB

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

Ephemeris of PEA1AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.008    106.5
-------------------------

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.