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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:00:58

Orbital Elements for CIA27
WDS: CIA27 WDS ID/Discoverer
P: 0.654 Orbital period (years)
a: 0.0245 Semi-major axis (arcseconds)
i: 32.8 Inclination (degrees)
Ω: 291.8 Longitude of ascending node (degrees)
T: 59089.200 Epoch of periastron passage (year)
e: 0.111 Eccentricity
ω: 0.1 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 CIA27
Position: 042920.56+173241.8 Epoch-2000 right ascension and declination
WDS-ID: 04293+1733 WDS designation
Discoverer Code: CIA27 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 28394 HD catalog number
Hipparcos number: 20935 Hipparcos catalog number
V1: 5.9 Magnitude of the primary
V2: 8.7 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 8 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

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