Astronomy
Constellations - Draco - 30 Dra

 
Identification Data
Common Name
ConstellationDraco
Star Name30 Dra
Skymap Number17490020
Henry Draper (HD) Number162579
Harvard Revised (HR) Number6656
SAO Number30591
Durchmusterung (DM) NumberBD+50 2468
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number36199
Right Ascension (RA) J200017h 49m 4.286s
Declination (Dec) J2000+50° 46' 51.870"
Position Uncertainty0.0068s
Proper Motion in RA (J2000)/cos(Dec)-0.00547
Proper Motion in Dec (J2000)+0.218266
Radial Velocity-054.8km s-1
Trigonometric Parallax+0.01503s
Trigonometric Parallax Uncertainty0.00047s
GCI Unit Vector in X (J2000)-0.030139
GCI Unit Vector in Y (J2000)-0.631567
GCI Unit Vector in Z (J2000)0.774736
Galactic Longitude78.07°
Galactic Latitude
30.30°
Observational Data
Observed Visual Magnitude (V)5.02
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.06
Observed B-V Colour+0.039
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 Magnitude5.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA2V
One-Dimensional Spectral ClassA2
Position Angle26
Year of Observation1990. 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 13:15:40 GMT+01:00 2001