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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:27:20

Orbital Elements for OCC9011AA,AB

WDS:	OCC9011AA,AB	WDS ID/Discoverer
P:	12.634	Orbital period (years)
a:	0.2732	Semi-major axis (arcseconds)
i:	106.7	Inclination (degrees)
Ω:	243.6	Longitude of ascending node (degrees)
T:	1979.340	Epoch of periastron passage (year)
e:	0.89	Eccentricity
ω:	132.6	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 OCC9011AA,AB

Position:	063742.71+162357.4	Epoch-2000 right ascension and declination
WDS-ID:	06377+1624	WDS designation
Discoverer Code:	OCC9011AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	47105	HD catalog number
Hipparcos number:	31681	Hipparcos catalog number
V1:	1.9	Magnitude of the primary
V2:	7.5	Magnitude of the secondary
Equinox:		Equinox
Date:	2012	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for OCC9011AA,AB

WDS 6th Orbit including measures of OCC9011AA,AB

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

Ephemeris of OCC9011AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.383    258.1
-------------------------
2019.0     0.137    282.2
2020.0     0.211    272.7
2021.0     0.271    267.8
2022.0     0.318    264.6
2023.0     0.352    262.2
2024.0     0.374    260.1
2025.0     0.383    258.1
2026.0     0.376    256.2
2027.0     0.350    254.1
2028.0     0.299    251.5
2029.0     0.202    247.1
2030.0     0.043     50.6

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.