Astronomy
Constellations - Pegasus - 54alp Peg (Markab)

 
Identification Data
Common NameMarkab
ConstellationPegasus
Star Name54alp Peg
Skymap Number23040128
Henry Draper (HD) Number218045
Harvard Revised (HR) Number8781
SAO Number108378
Durchmusterung (DM) NumberBD+14 4926
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number142158
Right Ascension (RA) J200023h 4m 45.653s
Declination (Dec) J2000+15° 12' 18.952"
Position Uncertainty0.0076s
Proper Motion in RA (J2000)/cos(Dec)+0.00422
Proper Motion in Dec (J2000)-0.042666
Radial Velocity-002.2km s-1
Trigonometric Parallax+0.02336s
Trigonometric Parallax Uncertainty0.00076s
GCI Unit Vector in X (J2000)0.937098
GCI Unit Vector in Y (J2000)-0.230343
GCI Unit Vector in Z (J2000)0.262278
Galactic Longitude88.29°
Galactic Latitude
-40.38°
Observational Data
Observed Visual Magnitude (V)2.49
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude2.48
Observed B-V Colour-0.008
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 Magnitude2.6
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB9V
One-Dimensional Spectral ClassA0
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 13:15:47 GMT+01:00 2001