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Astronomy
Constellations - Lyra - 13 Lyr

 
Identification Data
Common Name
ConstellationLyra
Star Name13 Lyr
Skymap Number18550078
Henry Draper (HD) Number175865
Harvard Revised (HR) Number7157
SAO Number47919
Durchmusterung (DM) NumberBD+43 3117
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number57635
Right Ascension (RA) J200018h 55m 20.101s
Declination (Dec) J2000+43° 56' 45.919"
Position Uncertainty0.0071s
Proper Motion in RA (J2000)/cos(Dec)+0.00185
Proper Motion in Dec (J2000)+0.080666
Radial Velocity-028.3km s-1
Trigonometric Parallax+0.00933s
Trigonometric Parallax Uncertainty0.00052s
GCI Unit Vector in X (J2000)0.172154
GCI Unit Vector in Y (J2000)-0.699109
GCI Unit Vector in Z (J2000)0.693981
Galactic Longitude73.82°
Galactic Latitude
17.79°
Observational Data
Observed Visual Magnitude (V)4.19
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.013
Observed B Magnitude5.56
Observed B-V Colour+1.371
Observed B Magnitude or (B-V) Magnitude Uncertainty0.013
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeM5III
One-Dimensional Spectral ClassM0
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 13:15:45 GMT+01:00 2001
 
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