tcaep.co.uk Navigation. See bottom for text alternatives
Previous Page...
 
Printer Version
Astronomy
Constellations - Leo - 40 Leo

 
Identification Data
Common Name
ConstellationLeo
Star Name40 Leo
Skymap Number10190110
Henry Draper (HD) Number89449
Harvard Revised (HR) Number4054
SAO Number99065
Durchmusterung (DM) NumberBD+20 2466
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number127314
Right Ascension (RA) J200010h 19m 44.167s
Declination (Dec) J2000+19° 28' 15.291"
Position Uncertainty0.0093s
Proper Motion in RA (J2000)/cos(Dec)-0.01626
Proper Motion in Dec (J2000)-0.214766
Radial Velocity+006.5km s-1
Trigonometric Parallax+0.04724s
Trigonometric Parallax Uncertainty0.00082s
GCI Unit Vector in X (J2000)-0.854017
GCI Unit Vector in Y (J2000)0.399433
GCI Unit Vector in Z (J2000)0.333328
Galactic Longitude217.13°
Galactic Latitude
54.48°
Observational Data
Observed Visual Magnitude (V)4.78
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.25
Observed B-V Colour+0.473
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.0
Observed Photographic Magnitude5.0
Morgan Keenan (MK) Spectral TypeF6IV
One-Dimensional Spectral ClassF5
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))

 
[ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ]
Download | Shop | Contact | About
 
Page compiled: Sun Sep 02 13:15:43 GMT+01:00 2001
 
The Bottom Line
HomeScienceMathsAstronomyDownloadBookshopContactAbout Top of Page