Astronomy
Constellations - Aquarius - 12 Aqr

 
Identification Data
Common Name
ConstellationAquarius
Star Name12 Aqr
Skymap Number21040020
Henry Draper (HD) Number200496
Harvard Revised (HR) Number8058
SAO Number145064
Durchmusterung (DM) NumberSD-06 5664
Washington Double Stars (WDS) Number
21041-0549
Positional Data
Position and Proper Motion (PPM) Number204770
Right Ascension (RA) J200021h 4m 4.682s
Declination (Dec) J2000-5° 49' 25.394"
Position Uncertainty0.0173s
Proper Motion in RA (J2000)/cos(Dec)+0.00140
Proper Motion in Dec (J2000)-0.007067
Radial Velocity+001.3km s-1
Trigonometric Parallax+0.00603s
Trigonometric Parallax Uncertainty0.00117s
GCI Unit Vector in X (J2000)0.715862
GCI Unit Vector in Y (J2000)-0.690829
GCI Unit Vector in Z (J2000)-0.101468
Galactic Longitude43.67°
Galactic Latitude
-32.04°
Observational Data
Observed Visual Magnitude (V)7.41
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.050
Observed B Magnitude7.55
Observed B-V Colour+0.14
Observed B Magnitude or (B-V) Magnitude Uncertainty0.050
Observed U Magnitude7.75
Observed U-B Colour+0.20
Observed U Magnitude or (U-B) Magnitude Uncertainty0.050
Observed Photovisual Magnitude7.3
Observed Photographic Magnitude7.4
Morgan Keenan (MK) Spectral TypeA3V
One-Dimensional Spectral ClassF5
Position Angle195
Year of Observation1991. 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 13:15:32 GMT+01:00 2001