Astronomy
Constellations - Octans - alp Oct

 
Identification Data
Common Name
ConstellationOctans
Star Namealp Oct
Skymap Number21040133
Henry Draper (HD) Number199532
Harvard Revised (HR) Number8021
SAO Number257879
Durchmusterung (DM) NumberCP-77 1474
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number374864
Right Ascension (RA) J200021h 4m 43.064s
Declination (Dec) J2000-77° 1' 25.562"
Position Uncertainty0.0070s
Proper Motion in RA (J2000)/cos(Dec)+0.00411
Proper Motion in Dec (J2000)-0.369466
Radial Velocity+045.0km s-1
Trigonometric Parallax+0.02207s
Trigonometric Parallax Uncertainty0.00057s
GCI Unit Vector in X (J2000)0.162013
GCI Unit Vector in Y (J2000)-0.155477
GCI Unit Vector in Z (J2000)-0.974463
Galactic Longitude315.97°
Galactic Latitude
-33.65°
Observational Data
Observed Visual Magnitude (V)5.13
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.63
Observed B-V Colour+0.501
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 Magnitude5.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA7III+G2III
One-Dimensional Spectral ClassF2
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))

 
Page compiled: Sun Sep 02 13:15:45 GMT+01:00 2001