Astronomy
Constellations - Draco - 21mu Dra (Arrakis)

 
Identification Data
Common NameArrakis
ConstellationDraco
Star Name21mu Dra
Skymap Number17050064
Henry Draper (HD) Number154906
Harvard Revised (HR) Number6370
SAO Number30239
Durchmusterung (DM) NumberBD+54 1857
Washington Double Stars (WDS) Number
17053+5428
Positional Data
Position and Proper Motion (PPM) Number
Right Ascension (RA) J200017h 5m 20.116s
Declination (Dec) J2000+54° 28' 12.153"
Position Uncertainty0.0125s
Proper Motion in RA (J2000)/cos(Dec)-0.00757
Proper Motion in Dec (J2000)+0.073967
Radial Velocity-014.3km s-1
Trigonometric Parallax+0.03708s
Trigonometric Parallax Uncertainty0.00089s
GCI Unit Vector in X (J2000)-0.137300
GCI Unit Vector in Y (J2000)-0.564676
GCI Unit Vector in Z (J2000)0.813812
Galactic Longitude82.30°
Galactic Latitude
37.02°
Observational Data
Observed Visual Magnitude (V)5.55
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.011
Observed B Magnitude6.03
Observed B-V Colour+0.483
Observed B Magnitude or (B-V) Magnitude Uncertainty0.014
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.8
Observed Photographic Magnitude6.2
Morgan Keenan (MK) Spectral TypeF7V
One-Dimensional Spectral Class
Position Angle29
Year of Observation1993. 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 13:15:39 GMT+01:00 2001