Astronomy
Constellations - Hercules - 44eta Her

 
Identification Data
Common Name
ConstellationHercules
Star Name44eta Her
Skymap Number16420137
Henry Draper (HD) Number150997
Harvard Revised (HR) Number6220
SAO Number65504
Durchmusterung (DM) NumberBD+39 3029
Washington Double Stars (WDS) Number
16429+3855
Positional Data
Position and Proper Motion (PPM) Number79578
Right Ascension (RA) J200016h 42m 53.765s
Declination (Dec) J2000+38° 55' 20.116"
Position Uncertainty0.0061s
Proper Motion in RA (J2000)/cos(Dec)+0.00305
Proper Motion in Dec (J2000)-0.085066
Radial Velocity+008.3km s-1
Trigonometric Parallax+0.02911s
Trigonometric Parallax Uncertainty0.00052s
GCI Unit Vector in X (J2000)-0.256832
GCI Unit Vector in Y (J2000)-0.734384
GCI Unit Vector in Z (J2000)0.628265
Galactic Longitude62.28°
Galactic Latitude
40.90°
Observational Data
Observed Visual Magnitude (V)3.48
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.40
Observed B-V Colour+0.917
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.6
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG7IIIFe-1
One-Dimensional Spectral ClassK0
Position Angle262
Year of Observation1911. 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 13:15:42 GMT+01:00 2001