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Astronomy
Constellations - Crux - alp1Cru (Acrux)

 
Identification Data
Common NameAcrux
ConstellationCrux
Star Namealp1Cru
Skymap Number12260079
Henry Draper (HD) Number108248
Harvard Revised (HR) Number4730
SAO Number251904
Durchmusterung (DM) NumberCP-62 2745
Washington Double Stars (WDS) Number
12266-6306
Positional Data
Position and Proper Motion (PPM) Number359410
Right Ascension (RA) J200012h 26m 35.895s
Declination (Dec) J2000-63° 5' 56.730"
Position Uncertainty0.0077s
Proper Motion in RA (J2000)/cos(Dec)-0.00521
Proper Motion in Dec (J2000)-0.014767
Radial Velocity-011.2km s-1
Trigonometric Parallax+0.01017s
Trigonometric Parallax Uncertainty0.00067s
GCI Unit Vector in X (J2000)-0.449405
GCI Unit Vector in Y (J2000)-0.052392
GCI Unit Vector in Z (J2000)-0.891790
Galactic Longitude300.13°
Galactic Latitude
-0.36°
Observational Data
Observed Visual Magnitude (V)1.28
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.013
Observed B Magnitude1.11
Observed B-V Colour-0.169
Observed B Magnitude or (B-V) Magnitude Uncertainty0.018
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude1.3
Observed Photographic Magnitude1.4
Morgan Keenan (MK) Spectral TypeB0.5IV
One-Dimensional Spectral ClassB1
Position Angle112
Year of Observation1994. 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))

 
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Page compiled: Sun Sep 02 13:15:38 GMT+01:00 2001
 
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