Astronomy
Constellations - Perseus - 17 Per

 
Identification Data
Common Name
ConstellationPerseus
Star Name17 Per
Skymap Number2510071
Henry Draper (HD) Number17709
Harvard Revised (HR) Number843
SAO Number55946
Durchmusterung (DM) NumberBD+34 527
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number67840
Right Ascension (RA) J20002h 51m 30.837s
Declination (Dec) J2000+35° 3' 35.068"
Position Uncertainty0.0099s
Proper Motion in RA (J2000)/cos(Dec)+0.00076
Proper Motion in Dec (J2000)-0.063066
Radial Velocity+014.3km s-1
Trigonometric Parallax+0.00797s
Trigonometric Parallax Uncertainty0.00110s
GCI Unit Vector in X (J2000)0.599835
GCI Unit Vector in Y (J2000)0.556981
GCI Unit Vector in Z (J2000)0.574430
Galactic Longitude149.08°
Galactic Latitude
-21.64°
Observational Data
Observed Visual Magnitude (V)4.55
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.11
Observed B-V Colour+1.562
Observed B Magnitude or (B-V) Magnitude Uncertainty0.007
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.7
Observed Photographic Magnitude5.8
Morgan Keenan (MK) Spectral TypeK5.5III
One-Dimensional Spectral ClassK5
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