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Astronomy
Constellations - Hydra - 58 Hya

 
Identification Data
Common Name
ConstellationHydra
Star Name58 Hya
Skymap Number14500041
Henry Draper (HD) Number130694
Harvard Revised (HR) Number5526
SAO Number182911
Durchmusterung (DM) NumberCD-2710073
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number263452
Right Ascension (RA) J200014h 50m 17.309s
Declination (Dec) J2000-27° 57' 37.335"
Position Uncertainty0.0130s
Proper Motion in RA (J2000)/cos(Dec)-0.01792
Proper Motion in Dec (J2000)-0.062466
Radial Velocity-009.9km s-1
Trigonometric Parallax+0.01068s
Trigonometric Parallax Uncertainty0.00083s
GCI Unit Vector in X (J2000)-0.650465
GCI Unit Vector in Y (J2000)-0.597549
GCI Unit Vector in Z (J2000)-0.468861
Galactic Longitude332.66°
Galactic Latitude
27.97°
Observational Data
Observed Visual Magnitude (V)4.42
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.79
Observed B-V Colour+1.372
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.6
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK2.5IIIbFe-1:
One-Dimensional Spectral ClassK2
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))

 
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Page compiled: Sun Sep 02 13:15:43 GMT+01:00 2001
 
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