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Astronomy
Constellations - Serpens - 25 Ser

 
Identification Data
Common Name
ConstellationSerpens
Star Name25 Ser
Skymap Number15460009
Henry Draper (HD) Number140873
Harvard Revised (HR) Number5863
SAO Number140740
Durchmusterung (DM) NumberBD-01 3092
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number179639
Right Ascension (RA) J200015h 46m 5.637s
Declination (Dec) J2000-1° 48' 15.094"
Position Uncertainty0.0080s
Proper Motion in RA (J2000)/cos(Dec)-0.00146
Proper Motion in Dec (J2000)-0.031866
Radial Velocity-012.1km s-1
Trigonometric Parallax+0.00799s
Trigonometric Parallax Uncertainty0.00068s
GCI Unit Vector in X (J2000)-0.551322
GCI Unit Vector in Y (J2000)-0.833699
GCI Unit Vector in Z (J2000)-0.031484
Galactic Longitude5.54°
Galactic Latitude
38.99°
Observational Data
Observed Visual Magnitude (V)5.39
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.35
Observed B-V Colour-0.039
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 Magnitude5.4
Observed Photographic Magnitude5.3
Morgan Keenan (MK) Spectral TypeB8III
One-Dimensional Spectral ClassB8
Position Angle63
Year of Observation1987. 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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