Astronomy
Constellations - Serpens - 12tau2Ser

 
Identification Data
Common Name
ConstellationSerpens
Star Name12tau2Ser
Skymap Number15320022
Henry Draper (HD) Number138527
Harvard Revised (HR) Number5770
SAO Number101600
Durchmusterung (DM) NumberBD+16 2797
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number131484
Right Ascension (RA) J200015h 32m 9.675s
Declination (Dec) J2000+16° 3' 22.208"
Position Uncertainty0.0100s
Proper Motion in RA (J2000)/cos(Dec)-0.00020
Proper Motion in Dec (J2000)+0.006866
Radial Velocity-018.0km s-1
Trigonometric Parallax+0.00756s
Trigonometric Parallax Uncertainty0.00080s
GCI Unit Vector in X (J2000)-0.577799
GCI Unit Vector in Y (J2000)-0.767888
GCI Unit Vector in Z (J2000)0.276580
Galactic Longitude24.80°
Galactic Latitude
51.22°
Observational Data
Observed Visual Magnitude (V)6.22
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude6.18
Observed B-V Colour-0.041
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 Magnitude6.1
Observed Photographic Magnitude6.1
Morgan Keenan (MK) Spectral TypeB9V
One-Dimensional Spectral ClassB9
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))

 
Page compiled: Sun Sep 02 13:15:49 GMT+01:00 2001