Astronomy
Constellations - Perseus - 12 Per

 
Identification Data
Common Name
ConstellationPerseus
Star Name12 Per
Skymap Number2420045
Henry Draper (HD) Number16739
Harvard Revised (HR) Number788
SAO Number55793
Durchmusterung (DM) NumberBD+39 610
Washington Double Stars (WDS) Number
02422+4012
Positional Data
Position and Proper Motion (PPM) Number45381
Right Ascension (RA) J20002h 42m 14.916s
Declination (Dec) J2000+40° 11' 38.198"
Position Uncertainty0.0108s
Proper Motion in RA (J2000)/cos(Dec)-0.00147
Proper Motion in Dec (J2000)-0.182366
Radial Velocity-022.5km s-1
Trigonometric Parallax+0.04052s
Trigonometric Parallax Uncertainty0.00125s
GCI Unit Vector in X (J2000)0.580308
GCI Unit Vector in Y (J2000)0.496720
GCI Unit Vector in Z (J2000)0.645377
Galactic Longitude144.85°
Galactic Latitude
-17.91°
Observational Data
Observed Visual Magnitude (V)4.90
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.48
Observed B-V Colour+0.582
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.0
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeF9V
One-Dimensional Spectral ClassG0
Position Angle
Year of Observation1991. 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