Astronomy
Constellations - Pegasus - 57 Peg

 
Identification Data
Common Name
ConstellationPegasus
Star Name57 Peg
Skymap Number23090082
Henry Draper (HD) Number218634
Harvard Revised (HR) Number8815
SAO Number128001
Durchmusterung (DM) NumberBD+07 4981
Washington Double Stars (WDS) Number
23095+0841
Positional Data
Position and Proper Motion (PPM) Number173803
Right Ascension (RA) J200023h 9m 31.457s
Declination (Dec) J2000+8° 40' 37.778"
Position Uncertainty0.0113s
Proper Motion in RA (J2000)/cos(Dec)+0.00025
Proper Motion in Dec (J2000)-0.004566
Radial Velocity+015.7km s-1
Trigonometric Parallax+0.00428s
Trigonometric Parallax Uncertainty0.00088s
GCI Unit Vector in X (J2000)0.964675
GCI Unit Vector in Y (J2000)-0.215965
GCI Unit Vector in Z (J2000)0.150867
Galactic Longitude84.79°
Galactic Latitude
-46.51°
Observational Data
Observed Visual Magnitude (V)5.03
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.053
Observed B Magnitude6.51
Observed B-V Colour+1.48
Observed B Magnitude or (B-V) Magnitude Uncertainty0.009
Observed U Magnitude7.66
Observed U-B Colour+1.15
Observed U Magnitude or (U-B) Magnitude Uncertainty0.074
Observed Photovisual Magnitude5.4
Observed Photographic Magnitude6.4
Morgan Keenan (MK) Spectral TypeM4IIIS+A2V
One-Dimensional Spectral ClassMb
Position Angle198
Year of Observation1982. 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