Astronomy
Constellations - Hydrus - del Hyi

 
Identification Data
Common Name
ConstellationHydrus
Star Namedel Hyi
Skymap Number2210110
Henry Draper (HD) Number15008
Harvard Revised (HR) Number705
SAO Number248545
Durchmusterung (DM) NumberCP-69 113
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number352886
Right Ascension (RA) J20002h 21m 44.942s
Declination (Dec) J2000-68° 39' 33.905"
Position Uncertainty0.0070s
Proper Motion in RA (J2000)/cos(Dec)-0.00917
Proper Motion in Dec (J2000)+0.002466
Radial Velocity+006.0km s-1
Trigonometric Parallax+0.02410s
Trigonometric Parallax Uncertainty0.00051s
GCI Unit Vector in X (J2000)0.296497
GCI Unit Vector in Y (J2000)0.211000
GCI Unit Vector in Z (J2000)-0.931434
Galactic Longitude291.25°
Galactic Latitude
-46.37°
Observational Data
Observed Visual Magnitude (V)4.08
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.12
Observed B-V Colour+0.041
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.3
Observed Photographic Magnitude4.3
Morgan Keenan (MK) Spectral TypeA3V
One-Dimensional Spectral ClassA2
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