Astronomy
Constellations - Pegasus - 31 Peg

 
Identification Data
Common Name
ConstellationPegasus
Star Name31 Peg
Skymap Number22210091
Henry Draper (HD) Number212076
Harvard Revised (HR) Number8520
SAO Number107854
Durchmusterung (DM) NumberBD+11 4784
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number141365
Right Ascension (RA) J200022h 21m 31.075s
Declination (Dec) J2000+12° 12' 18.670"
Position Uncertainty0.0106s
Proper Motion in RA (J2000)/cos(Dec)+0.00042
Proper Motion in Dec (J2000)+0.005566
Radial Velocity+001.km s-1
Trigonometric Parallax+0.00336s
Trigonometric Parallax Uncertainty0.00079s
GCI Unit Vector in X (J2000)0.888539
GCI Unit Vector in Y (J2000)-0.407190
GCI Unit Vector in Z (J2000)0.211413
Galactic Longitude75.28°
Galactic Latitude
-36.43°
Observational Data
Observed Visual Magnitude (V)4.82
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.010
Observed B Magnitude4.73
Observed B-V Colour-0.094
Observed B Magnitude or (B-V) Magnitude Uncertainty0.011
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB2IV-Ve
One-Dimensional Spectral ClassB3
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