Identification Data |
Common Name | Alchiba |
Constellation | Corvus |
Star Name | 1alp Crv |
Skymap Number | 12080059 |
Henry Draper (HD) Number | 105452 |
Harvard Revised (HR) Number | 4623 |
SAO Number | 180505 |
Durchmusterung (DM) Number | CD-2410174 |
Washington Double Stars (WDS) Number
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Positional Data |
Position and Proper Motion (PPM) Number | 259912 |
Right Ascension (RA) J2000 | 12h 8m 24.817s |
Declination (Dec) J2000 | -24° 43' 43.952" |
Position Uncertainty | 0.0078s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00735 |
Proper Motion in Dec (J2000) | -0.039366 |
Radial Velocity | +004.4km s-1 |
Trigonometric Parallax | +0.06771s |
Trigonometric Parallax Uncertainty | 0.00075s |
GCI Unit Vector in X (J2000) | -0.907685 |
GCI Unit Vector in Y (J2000) | -0.033337 |
GCI Unit Vector in Z (J2000) | -0.418325 |
Galactic Longitude | 290.67° |
Galactic Latitude
| 37.12°
|
Observational Data |
Observed Visual Magnitude (V) | 4.04 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.37 |
Observed B-V Colour | +0.328 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.2 |
Observed Photographic Magnitude | 4.5 |
Morgan Keenan (MK) Spectral Type | F2III-IV |
One-Dimensional Spectral Class | F2 |
Position Angle | |
Year of Observation | AD |