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Astronomy
Constellations - Leo - 42 Leo

 
Identification Data
Common Name
ConstellationLeo
Star Name42 Leo
Skymap Number10210128
Henry Draper (HD) Number89774
Harvard Revised (HR) Number4070
SAO Number99080
Durchmusterung (DM) NumberBD+15 2192
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number127335
Right Ascension (RA) J200010h 21m 50.303s
Declination (Dec) J2000+14° 58' 32.784"
Position Uncertainty0.0093s
Proper Motion in RA (J2000)/cos(Dec)-0.00222
Proper Motion in Dec (J2000)-0.011366
Radial Velocity+008.7km s-1
Trigonometric Parallax+0.00685s
Trigonometric Parallax Uncertainty0.00084s
GCI Unit Vector in X (J2000)-0.878772
GCI Unit Vector in Y (J2000)0.401228
GCI Unit Vector in Z (J2000)0.258411
Galactic Longitude224.50°
Galactic Latitude
53.21°
Observational Data
Observed Visual Magnitude (V)6.17
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.17
Observed B-V Colour-0.005
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 Magnitude6.1
Observed Photographic Magnitude6.0
Morgan Keenan (MK) Spectral TypeA1V
One-Dimensional Spectral ClassB9
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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