Astronomy
Constellations - Leo - 87 Leo

 
Identification Data
Common Name
ConstellationLeo
Star Name87 Leo
Skymap Number11300038
Henry Draper (HD) Number99998
Harvard Revised (HR) Number4432
SAO Number138238
Durchmusterung (DM) NumberSD-02 3360
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number178510
Right Ascension (RA) J200011h 30m 18.893s
Declination (Dec) J2000-3° 0' 12.602"
Position Uncertainty0.0109s
Proper Motion in RA (J2000)/cos(Dec)+0.00132
Proper Motion in Dec (J2000)-0.017166
Radial Velocity+018.8km s-1
Trigonometric Parallax+0.00540s
Trigonometric Parallax Uncertainty0.00099s
GCI Unit Vector in X (J2000)-0.990261
GCI Unit Vector in Y (J2000)0.128986
GCI Unit Vector in Z (J2000)-0.052397
Galactic Longitude266.79°
Galactic Latitude
54.07°
Observational Data
Observed Visual Magnitude (V)4.76
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.29
Observed B-V Colour+1.525
Observed B Magnitude or (B-V) Magnitude Uncertainty0.008
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.1
Observed Photographic Magnitude6.1
Morgan Keenan (MK) Spectral TypeK3.5IIIFe-1
One-Dimensional Spectral ClassK2
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 13:15:44 GMT+01:00 2001