Astronomy
Constellations - Saggitarius - 41pi Sgr (Albaldah)

 
Identification Data
Common NameAlbaldah
ConstellationSaggitarius
Star Name41pi Sgr
Skymap Number19090174
Henry Draper (HD) Number178524
Harvard Revised (HR) Number7264
SAO Number187756
Durchmusterung (DM) NumberSD-21 5275
Washington Double Stars (WDS) Number
19098-2101
Positional Data
Position and Proper Motion (PPM) Number269391
Right Ascension (RA) J200019h 9m 45.833s
Declination (Dec) J2000-21° 1' 25.013"
Position Uncertainty0.0071s
Proper Motion in RA (J2000)/cos(Dec)-0.00008
Proper Motion in Dec (J2000)-0.036866
Radial Velocity-009.8km s-1
Trigonometric Parallax+0.00741s
Trigonometric Parallax Uncertainty0.00069s
GCI Unit Vector in X (J2000)0.279771
GCI Unit Vector in Y (J2000)-0.890519
GCI Unit Vector in Z (J2000)-0.358753
Galactic Longitude15.89°
Galactic Latitude
-13.29°
Observational Data
Observed Visual Magnitude (V)2.90
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude3.28
Observed B-V Colour+0.377
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.0
Observed Photographic Magnitude3.4
Morgan Keenan (MK) Spectral TypeF2II
One-Dimensional Spectral ClassF2
Position Angle179
Year of Observation1989. 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 13:15:50 GMT+01:00 2001