Astronomy
Constellations - Serpens - 58eta Ser

 
Identification Data
Common Name
ConstellationSerpens
Star Name58eta Ser
Skymap Number18210079
Henry Draper (HD) Number168723
Harvard Revised (HR) Number6869
SAO Number142241
Durchmusterung (DM) NumberSD-02 4599
Washington Double Stars (WDS) Number
18213-0252
Positional Data
Position and Proper Motion (PPM) Number201654
Right Ascension (RA) J200018h 21m 18.600s
Declination (Dec) J2000-2° 53' 55.770"
Position Uncertainty0.0069s
Proper Motion in RA (J2000)/cos(Dec)-0.03655
Proper Motion in Dec (J2000)-0.700766
Radial Velocity+008.9km s-1
Trigonometric Parallax+0.05281s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)0.092730
GCI Unit Vector in Y (J2000)-0.994406
GCI Unit Vector in Z (J2000)-0.050572
Galactic Longitude26.91°
Galactic Latitude
5.36°
Observational Data
Observed Visual Magnitude (V)3.25
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.19
Observed B-V Colour+0.943
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.4
Observed Photographic Magnitude4.4
Morgan Keenan (MK) Spectral TypeK0III-IV
One-Dimensional Spectral ClassK0
Position Angle61
Year of Observation1923. 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