Astronomy
Constellations - Draco - 23bet Dra (Rastaban)

 
Identification Data
Common NameRastaban
ConstellationDraco
Star Name23bet Dra
Skymap Number17300085
Henry Draper (HD) Number159181
Harvard Revised (HR) Number6536
SAO Number30429
Durchmusterung (DM) NumberBD+52 2065
Washington Double Stars (WDS) Number
17304+5218
Positional Data
Position and Proper Motion (PPM) Number36022
Right Ascension (RA) J200017h 30m 25.962s
Declination (Dec) J2000+52° 18' 4.994"
Position Uncertainty0.0059s
Proper Motion in RA (J2000)/cos(Dec)-0.00170
Proper Motion in Dec (J2000)+0.011666
Radial Velocity-020.0km s-1
Trigonometric Parallax+0.00902s
Trigonometric Parallax Uncertainty0.00049s
GCI Unit Vector in X (J2000)-0.078673
GCI Unit Vector in Y (J2000)-0.606426
GCI Unit Vector in Z (J2000)0.791238
Galactic Longitude79.58°
Galactic Latitude
33.31°
Observational Data
Observed Visual Magnitude (V)2.80
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude3.76
Observed B-V Colour+0.958
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.0
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG2Ib-IIa
One-Dimensional Spectral ClassG0
Position Angle13
Year of Observation1934. 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 13:15:39 GMT+01:00 2001