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Astronomy
Constellations - Eridanus - 2tau2Eri (Angetenar)

 
Identification Data
Common NameAngetenar
ConstellationEridanus
Star Name2tau2Eri
Skymap Number2510005
Henry Draper (HD) Number17824
Harvard Revised (HR) Number850
SAO Number168094
Durchmusterung (DM) NumberSD-21 509
Washington Double Stars (WDS) Number
02510-2100
Positional Data
Position and Proper Motion (PPM) Number245481
Right Ascension (RA) J20002h 51m 2.321s
Declination (Dec) J2000-21° 0' 14.470"
Position Uncertainty0.0061s
Proper Motion in RA (J2000)/cos(Dec)-0.00279
Proper Motion in Dec (J2000)-0.016666
Radial Velocity-008.6km s-1
Trigonometric Parallax+0.01785s
Trigonometric Parallax Uncertainty0.00069s
GCI Unit Vector in X (J2000)0.685424
GCI Unit Vector in Y (J2000)0.633814
GCI Unit Vector in Z (J2000)-0.358433
Galactic Longitude206.79°
Galactic Latitude
-62.09°
Observational Data
Observed Visual Magnitude (V)4.77
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.68
Observed B-V Colour+0.909
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 Magnitude4.8
Observed Photographic Magnitude5.8
Morgan Keenan (MK) Spectral TypeK0III
One-Dimensional Spectral ClassK0
Position Angle129
Year of Observation1904. 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))

 
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Page compiled: Sun Sep 02 13:15:40 GMT+01:00 2001
 
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