Astronomy
Constellations - Hydra - 45psi Hya

 
Identification Data
Common Name
ConstellationHydra
Star Name45psi Hya
Skymap Number13090015
Henry Draper (HD) Number114149
Harvard Revised (HR) Number4958
SAO Number181410
Durchmusterung (DM) NumberBD-22 3515
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number261261
Right Ascension (RA) J200013h 9m 3.270s
Declination (Dec) J2000-23° 7' 5.051"
Position Uncertainty0.0074s
Proper Motion in RA (J2000)/cos(Dec)-0.00145
Proper Motion in Dec (J2000)-0.039966
Radial Velocity-019.0km s-1
Trigonometric Parallax+0.01414s
Trigonometric Parallax Uncertainty0.00080s
GCI Unit Vector in X (J2000)-0.878265
GCI Unit Vector in Y (J2000)-0.272937
GCI Unit Vector in Z (J2000)-0.392627
Galactic Longitude308.20°
Galactic Latitude
39.57°
Observational Data
Observed Visual Magnitude (V)4.94
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.98
Observed B-V Colour+1.043
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 Magnitude5.1
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK1III
One-Dimensional Spectral ClassK0
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 13:15:43 GMT+01:00 2001