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Astronomy
Constellations - Serpens - 40 Ser

 
Identification Data
Common Name
ConstellationSerpens
Star Name40 Ser
Skymap Number15540086
Henry Draper (HD) Number142500
Harvard Revised (HR) Number5919
SAO Number121254
Durchmusterung (DM) NumberBD+09 3116
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number162036
Right Ascension (RA) J200015h 54m 40.275s
Declination (Dec) J2000+8° 34' 49.214"
Position Uncertainty0.0105s
Proper Motion in RA (J2000)/cos(Dec)+0.00016
Proper Motion in Dec (J2000)-0.000666
Radial Velocity-025.1km s-1
Trigonometric Parallax+0.01354s
Trigonometric Parallax Uncertainty0.00105s
GCI Unit Vector in X (J2000)-0.514179
GCI Unit Vector in Y (J2000)-0.844607
GCI Unit Vector in Z (J2000)0.149196
Galactic Longitude18.57°
Galactic Latitude
42.96°
Observational Data
Observed Visual Magnitude (V)6.29
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude6.46
Observed B-V Colour+0.174
Observed B Magnitude or (B-V) Magnitude Uncertainty0.008
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.2
Observed Photographic Magnitude6.3
Morgan Keenan (MK) Spectral TypeA7Vn
One-Dimensional Spectral ClassA2
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))

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