Astronomy
Constellations - Hydra - 49pi Hya

 
Identification Data
Common Name
ConstellationHydra
Star Name49pi Hya
Skymap Number14060053
Henry Draper (HD) Number123123
Harvard Revised (HR) Number5287
SAO Number182244
Durchmusterung (DM) NumberCD-2610095
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number262489
Right Ascension (RA) J200014h 6m 22.297s
Declination (Dec) J2000-26° 40' 56.500"
Position Uncertainty0.0081s
Proper Motion in RA (J2000)/cos(Dec)+0.00321
Proper Motion in Dec (J2000)-0.140866
Radial Velocity+027.2km s-1
Trigonometric Parallax+0.03217s
Trigonometric Parallax Uncertainty0.00077s
GCI Unit Vector in X (J2000)-0.761084
GCI Unit Vector in Y (J2000)-0.468092
GCI Unit Vector in Z (J2000)-0.449044
Galactic Longitude323.01°
Galactic Latitude
33.25°
Observational Data
Observed Visual Magnitude (V)3.26
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.38
Observed B-V Colour+1.116
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 Magnitude3.5
Observed Photographic Magnitude4.5
Morgan Keenan (MK) Spectral TypeK2-IIIFe-0.5
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