Astronomy
Constellations - Perseus - phi Per

 
Identification Data
Common Name
ConstellationPerseus
Star Namephi Per
Skymap Number1430089
Henry Draper (HD) Number10516
Harvard Revised (HR) Number496
SAO Number22554
Durchmusterung (DM) NumberBD+49 444
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number26670
Right Ascension (RA) J20001h 43m 39.637s
Declination (Dec) J2000+50° 41' 19.437"
Position Uncertainty0.0064s
Proper Motion in RA (J2000)/cos(Dec)+0.00253
Proper Motion in Dec (J2000)-0.013666
Radial Velocity+000.8km s-1
Trigonometric Parallax+0.00455s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)0.569826
GCI Unit Vector in Y (J2000)0.276879
GCI Unit Vector in Z (J2000)0.773716
Galactic Longitude131.33°
Galactic Latitude
-11.33°
Observational Data
Observed Visual Magnitude (V)4.04
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude3.94
Observed B-V Colour-0.101
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB2Vep
One-Dimensional Spectral ClassB0
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