tcaep.co.uk Navigation. See bottom for text alternatives
Previous Page...
 
Printer Version
Astronomy
Constellations - Libra - 48 Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name48 Lib
Skymap Number15580021
Henry Draper (HD) Number142983
Harvard Revised (HR) Number5941
SAO Number159607
Durchmusterung (DM) NumberSD-13 4302
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number231020
Right Ascension (RA) J200015h 58m 11.368s
Declination (Dec) J2000-14° 16' 45.691"
Position Uncertainty0.0094s
Proper Motion in RA (J2000)/cos(Dec)-0.00085
Proper Motion in Dec (J2000)-0.016866
Radial Velocity-007.5km s-1
Trigonometric Parallax+0.00636s
Trigonometric Parallax Uncertainty0.00079s
GCI Unit Vector in X (J2000)-0.491167
GCI Unit Vector in Y (J2000)-0.835415
GCI Unit Vector in Z (J2000)-0.246650
Galactic Longitude356.39°
Galactic Latitude
28.63°
Observational Data
Observed Visual Magnitude (V)4.95
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.87
Observed B-V Colour-0.079
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 Magnitude4.7
Observed Photographic Magnitude4.5
Morgan Keenan (MK) Spectral TypeB5IIIp
One-Dimensional Spectral ClassB3
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 13:15:44 GMT+01:00 2001
 
The Bottom Line
HomeScienceMathsAstronomyDownloadBookshopContactAbout Top of Page