Astronomy
Constellations - Corona Borealis - 2eta CrB

 
Identification Data
Common Name
ConstellationCorona Borealis
Star Name2eta CrB
Skymap Number15230032
Henry Draper (HD) Number137107
Harvard Revised (HR) Number5727
SAO Number64673
Durchmusterung (DM) NumberBD+30 2653
Washington Double Stars (WDS) Number
15232+3017
Positional Data
Position and Proper Motion (PPM) Number78550
Right Ascension (RA) J200015h 23m 12.311s
Declination (Dec) J2000+30° 17' 16.124"
Position Uncertainty0.0090s
Proper Motion in RA (J2000)/cos(Dec)+0.00971
Proper Motion in Dec (J2000)-0.176567
Radial Velocity-006.8km s-1
Trigonometric Parallax+0.05370s
Trigonometric Parallax Uncertainty0.00124s
GCI Unit Vector in X (J2000)-0.545744
GCI Unit Vector in Y (J2000)-0.669179
GCI Unit Vector in Z (J2000)0.504344
Galactic Longitude47.54°
Galactic Latitude
56.73°
Observational Data
Observed Visual Magnitude (V)
Derived Visual Magnitude5.72
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.400
Observed B Magnitude
Observed B-V Colour
Observed B Magnitude or (B-V) Magnitude Uncertainty
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.6
Observed Photographic Magnitude6.1
Morgan Keenan (MK) Spectral TypeG0V
One-Dimensional Spectral ClassG0
Position Angle
Year of Observation1993. 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 13:15:38 GMT+01:00 2001