Astronomy
Constellations - Microscopium - alp Mic

 
Identification Data
Common Name
ConstellationMicroscopium
Star Namealp Mic
Skymap Number20490233
Henry Draper (HD) Number198232
Harvard Revised (HR) Number7965
SAO Number212472
Durchmusterung (DM) NumberCD-3414660
Washington Double Stars (WDS) Number
20500-3347
Positional Data
Position and Proper Motion (PPM) Number300665
Right Ascension (RA) J200020h 49m 58.082s
Declination (Dec) J2000-33° 46' 47.000"
Position Uncertainty0.0102s
Proper Motion in RA (J2000)/cos(Dec)+0.00030
Proper Motion in Dec (J2000)-0.020266
Radial Velocity-014.5km s-1
Trigonometric Parallax+0.00857s
Trigonometric Parallax Uncertainty0.00080s
GCI Unit Vector in X (J2000)0.561452
GCI Unit Vector in Y (J2000)-0.612889
GCI Unit Vector in Z (J2000)-0.556001
Galactic Longitude9.89°
Galactic Latitude
-38.26°
Observational Data
Observed Visual Magnitude (V)4.90
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.89
Observed B-V Colour+0.987
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 Magnitude4.6
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG7III
One-Dimensional Spectral ClassK0
Position Angle166
Year of Observation1933. 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