Astronomy
Constellations - Eridanus - iot Eri

 
Identification Data
Common Name
ConstellationEridanus
Star Nameiot Eri
Skymap Number2400099
Henry Draper (HD) Number16815
Harvard Revised (HR) Number794
SAO Number215999
Durchmusterung (DM) NumberCD-40 689
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number278212
Right Ascension (RA) J20002h 40m 40.034s
Declination (Dec) J2000-39° 51' 19.352"
Position Uncertainty0.0059s
Proper Motion in RA (J2000)/cos(Dec)+0.01174
Proper Motion in Dec (J2000)-0.027366
Radial Velocity-009.3km s-1
Trigonometric Parallax+0.02242s
Trigonometric Parallax Uncertainty0.00057s
GCI Unit Vector in X (J2000)0.586626
GCI Unit Vector in Y (J2000)0.495155
GCI Unit Vector in Z (J2000)-0.640852
Galactic Longitude249.29°
Galactic Latitude
-64.07°
Observational Data
Observed Visual Magnitude (V)4.12
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.12
Observed B-V Colour+1.001
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 Magnitude
Morgan Keenan (MK) Spectral TypeK0.5IIIbFe-0.5
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