Astronomy
Constellations - Eridanus - 3eta Eri (Azha)

 
Identification Data
Common NameAzha
ConstellationEridanus
Star Name3eta Eri
Skymap Number2560064
Henry Draper (HD) Number18322
Harvard Revised (HR) Number874
SAO Number130197
Durchmusterung (DM) NumberSD-09 553
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number185202
Right Ascension (RA) J20002h 56m 25.649s
Declination (Dec) J2000-8° 53' 53.320"
Position Uncertainty0.0080s
Proper Motion in RA (J2000)/cos(Dec)+0.00525
Proper Motion in Dec (J2000)-0.220066
Radial Velocity-020.3km s-1
Trigonometric Parallax+0.02449s
Trigonometric Parallax Uncertainty0.00072s
GCI Unit Vector in X (J2000)0.709401
GCI Unit Vector in Y (J2000)0.687623
GCI Unit Vector in Z (J2000)-0.154678
Galactic Longitude187.15°
Galactic Latitude
-55.31°
Observational Data
Observed Visual Magnitude (V)3.90
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.99
Observed B-V Colour+1.086
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.1
Observed Photographic Magnitude5.1
Morgan Keenan (MK) Spectral TypeK1IIIb
One-Dimensional Spectral ClassK0
Position Angle
Year of Observation AD

Data Source
SKY2000 - Master Star Catalog - Star Catalog Database, Version 2
    Sande C.B., Warren Jr. W.H., Tracewell D.A., Home A.T., Miller A.C.
    (Goddard Space Flight Center, Flight Dynamics Division (1998))

 
Page compiled: Sun Sep 02 13:15:40 GMT+01:00 2001