Astronomy
Constellations - Circinus - eta Cir

 
Identification Data
Common Name
ConstellationCircinus
Star Nameeta Cir
Skymap Number15040105
Henry Draper (HD) Number132905
Harvard Revised (HR) Number5593
SAO Number253005
Durchmusterung (DM) NumberCP-63 3493
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number361174
Right Ascension (RA) J200015h 4m 48.186s
Declination (Dec) J2000-64° 1' 52.860"
Position Uncertainty0.0056s
Proper Motion in RA (J2000)/cos(Dec)+0.01567
Proper Motion in Dec (J2000)+0.009566
Radial Velocity+044.8km s-1
Trigonometric Parallax+0.01220s
Trigonometric Parallax Uncertainty0.00059s
GCI Unit Vector in X (J2000)-0.303071
GCI Unit Vector in Y (J2000)-0.316048
GCI Unit Vector in Z (J2000)-0.899034
Galactic Longitude316.91°
Galactic Latitude
-4.84°
Observational Data
Observed Visual Magnitude (V)5.17
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude6.10
Observed B-V Colour+0.930
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
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 TypeG8III
One-Dimensional Spectral ClassG5
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 13:15:37 GMT+01:00 2001