Astronomy
Constellations - Serpens - 23psi Ser

 
Identification Data
Common Name
ConstellationSerpens
Star Name23psi Ser
Skymap Number15440008
Henry Draper (HD) Number140538
Harvard Revised (HR) Number5853
SAO Number121152
Durchmusterung (DM) NumberBD+02 2989
Washington Double Stars (WDS) Number
15440+0231
Positional Data
Position and Proper Motion (PPM) Number161850
Right Ascension (RA) J200015h 44m 1.819s
Declination (Dec) J2000+2° 30' 54.624"
Position Uncertainty0.0108s
Proper Motion in RA (J2000)/cos(Dec)-0.00300
Proper Motion in Dec (J2000)-0.144766
Radial Velocity+018.5km s-1
Trigonometric Parallax+0.06816s
Trigonometric Parallax Uncertainty0.00087s
GCI Unit Vector in X (J2000)-0.558545
GCI Unit Vector in Y (J2000)-0.828313
GCI Unit Vector in Z (J2000)0.043884
Galactic Longitude9.70°
Galactic Latitude
41.97°
Observational Data
Observed Visual Magnitude (V)5.87
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.55
Observed B-V Colour+0.677
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.8
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG2.5V
One-Dimensional Spectral ClassG5
Position Angle47
Year of Observation1974. 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 13:15:49 GMT+01:00 2001