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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:31:18

Orbital Elements for DUN38AB

WDS:	DUN38AB	WDS ID/Discoverer
P:	55000.000	Orbital period (years)
a:	110.0	Semi-major axis (arcseconds)
i:	81.0	Inclination (degrees)
Ω:	170.0	Longitude of ascending node (degrees)
T:	-3500.000	Epoch of periastron passage (year)
e:	0.87	Eccentricity
ω:	130.0	Longitude of periastron (degrees)
Start-Year:	-25475.0	Year
End-Year:	29525.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DUN38AB

Position:	070357.32-433628.9	Epoch-2000 right ascension and declination
WDS-ID:	07040-4337	WDS designation
Discoverer Code:	DUN38AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	53705	HD catalog number
Hipparcos number:	34065	Hipparcos catalog number
V1:	5.61	Magnitude of the primary
V2:	6.68	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2016	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Range error in Orbital Elements >>- Epoch T is outside the typical historical/near-future range (1600-2500)<<