Astronomy
Constellations - Hydra - 41lam Hya

 
Identification Data
Common Name
ConstellationHydra
Star Name41lam Hya
Skymap Number10100086
Henry Draper (HD) Number88284
Harvard Revised (HR) Number3994
SAO Number155785
Durchmusterung (DM) NumberSD-11 2820
Washington Double Stars (WDS) Number
10106-1221
Positional Data
Position and Proper Motion (PPM) Number222562
Right Ascension (RA) J200010h 10m 35.277s
Declination (Dec) J2000-12° 21' 14.699"
Position Uncertainty0.0324s
Proper Motion in RA (J2000)/cos(Dec)-0.01367
Proper Motion in Dec (J2000)-0.100366
Radial Velocity+019.4km s-1
Trigonometric Parallax+0.02844s
Trigonometric Parallax Uncertainty0.00096s
GCI Unit Vector in X (J2000)-0.867626
GCI Unit Vector in Y (J2000)0.448832
GCI Unit Vector in Z (J2000)-0.213953
Galactic Longitude253.02°
Galactic Latitude
34.50°
Observational Data
Observed Visual Magnitude (V)3.61
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.62
Observed B-V Colour+1.013
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 Magnitude3.8
Observed Photographic Magnitude4.8
Morgan Keenan (MK) Spectral TypeK0IIICN0.5
One-Dimensional Spectral ClassK0
Position Angle115
Year of Observation1922. 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