Astronomy
Constellations - Cepheus - mu Cep (Herschel's "Garnet Star")

 
Identification Data
Common NameHerschel's "Garnet Star"
ConstellationCepheus
Star Namemu Cep
Skymap Number21430096
Henry Draper (HD) Number206936
Harvard Revised (HR) Number8316
SAO Number33693
Durchmusterung (DM) NumberBD+58 2316
Washington Double Stars (WDS) Number
21435+5847
Positional Data
Position and Proper Motion (PPM) Number39787
Right Ascension (RA) J200021h 43m 30.460s
Declination (Dec) J2000+58° 46' 48.166"
Position Uncertainty0.0060s
Proper Motion in RA (J2000)/cos(Dec)+0.00067
Proper Motion in Dec (J2000)-0.002966
Radial Velocity+019.4km s-1
Trigonometric Parallax+0.00062s
Trigonometric Parallax Uncertainty0.00052s
GCI Unit Vector in X (J2000)0.429087
GCI Unit Vector in Y (J2000)-0.290766
GCI Unit Vector in Z (J2000)0.855184
Galactic Longitude100.60°
Galactic Latitude
4.32°
Observational Data
Observed Visual Magnitude (V)4.02
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.022
Observed B Magnitude6.25
Observed B-V Colour+2.233
Observed B Magnitude or (B-V) Magnitude Uncertainty0.026
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude
Observed Photographic Magnitude6.5
Morgan Keenan (MK) Spectral TypeM2-Ia
One-Dimensional Spectral ClassM0
Position Angle260
Year of Observation1946. 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 13:15:36 GMT+01:00 2001