Astronomy
Constellations - Hydra - 13rho Hya

 
Identification Data
Common Name
ConstellationHydra
Star Name13rho Hya
Skymap Number8480095
Henry Draper (HD) Number75137
Harvard Revised (HR) Number3492
SAO Number117146
Durchmusterung (DM) NumberBD+06 2040
Washington Double Stars (WDS) Number
08484+0550
Positional Data
Position and Proper Motion (PPM) Number155024
Right Ascension (RA) J20008h 48m 25.970s
Declination (Dec) J2000+5° 50' 16.125"
Position Uncertainty0.0113s
Proper Motion in RA (J2000)/cos(Dec)-0.00117
Proper Motion in Dec (J2000)-0.029866
Radial Velocity+032.8km s-1
Trigonometric Parallax+0.00967s
Trigonometric Parallax Uncertainty0.00100s
GCI Unit Vector in X (J2000)-0.667055
GCI Unit Vector in Y (J2000)0.738032
GCI Unit Vector in Z (J2000)0.101713
Galactic Longitude221.53°
Galactic Latitude
28.62°
Observational Data
Observed Visual Magnitude (V)4.35
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.33
Observed B-V Colour-0.018
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 Magnitude4.4
Observed Photographic Magnitude4.3
Morgan Keenan (MK) Spectral TypeA0Vn
One-Dimensional Spectral ClassA0
Position Angle145
Year of Observation1935. 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