Astronomy
Constellations - Microscopium - eta Mic

 
Identification Data
Common Name
ConstellationMicroscopium
Star Nameeta Mic
Skymap Number21060074
Henry Draper (HD) Number200702
Harvard Revised (HR) Number8069
SAO Number230523
Durchmusterung (DM) NumberCD-4114379
Washington Double Stars (WDS) Number
21064-4123
Positional Data
Position and Proper Motion (PPM) Number326857
Right Ascension (RA) J200021h 6m 25.520s
Declination (Dec) J2000-41° 23' 9.475"
Position Uncertainty0.0071s
Proper Motion in RA (J2000)/cos(Dec)+0.00260
Proper Motion in Dec (J2000)-0.012066
Radial Velocity+011.0km s-1
Trigonometric Parallax+0.00350s
Trigonometric Parallax Uncertainty0.00092s
GCI Unit Vector in X (J2000)0.545186
GCI Unit Vector in Y (J2000)-0.515443
GCI Unit Vector in Z (J2000)-0.661128
Galactic Longitude0.38°
Galactic Latitude
-42.25°
Observational Data
Observed Visual Magnitude (V)5.52
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.87
Observed B-V Colour+1.349
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.4
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK3III
One-Dimensional Spectral ClassK0
Position Angle56
Year of Observation1897. 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 13:15:45 GMT+01:00 2001