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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:29:28

Orbital Elements for STFA27AB
WDS: STFA27AB WDS ID/Discoverer
P: 76000.000 Orbital period (years)
a: 78.0 Semi-major axis (arcseconds)
i: 74.0 Inclination (degrees)
Ω: 91.0 Longitude of ascending node (degrees)
T: 22775.000 Epoch of periastron passage (year)
e: 0.99 Eccentricity
ω: 136.0 Longitude of periastron (degrees)
Start-Year: -35975.0 Year
End-Year: 40025.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STFA27AB
Position: 151530.16+331853.4 Epoch-2000 right ascension and declination
WDS-ID: 15155+3319 WDS designation
Discoverer Code: STFA27AB Discover designation and components
ADS number: 9559 Aitken Double Star catalog
HD number: 135722 HD catalog number
Hipparcos number: 74666 Hipparcos catalog number
V1: 3.56 Magnitude of the primary
V2: 7.89 Magnitude of the secondary
Equinox: Equinox
Date: 2005 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)<<