Astronomy
Constellations - Aquarius - 7 Aqr

 
Identification Data
Common Name
ConstellationAquarius
Star Name7 Aqr
Skymap Number20560173
Henry Draper (HD) Number199345
Harvard Revised (HR) Number8015
SAO Number144968
Durchmusterung (DM) NumberSD-10 5553
Washington Double Stars (WDS) Number
20569-0942
Positional Data
Position and Proper Motion (PPM) Number204646
Right Ascension (RA) J200020h 56m 54.027s
Declination (Dec) J2000-9° 41' 51.161"
Position Uncertainty0.0145s
Proper Motion in RA (J2000)/cos(Dec)-0.00024
Proper Motion in Dec (J2000)-0.011566
Radial Velocity-032.7km s-1
Trigonometric Parallax+0.00542s
Trigonometric Parallax Uncertainty0.00099s
GCI Unit Vector in X (J2000)0.687513
GCI Unit Vector in Y (J2000)-0.706365
GCI Unit Vector in Z (J2000)-0.168447
Galactic Longitude38.64°
Galactic Latitude
-32.24°
Observational Data
Observed Visual Magnitude (V)5.48
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude6.95
Observed B-V Colour+1.474
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.2
Observed Photographic Magnitude6.8
Morgan Keenan (MK) Spectral TypegK5
One-Dimensional Spectral ClassK2
Position Angle165
Year of Observation1940. 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