| Identification Data |
| Common Name | |
| Constellation | Microscopium |
| Star Name | alp Mic |
| Skymap Number | 20490233 |
| Henry Draper (HD) Number | 198232 |
| Harvard Revised (HR) Number | 7965 |
| SAO Number | 212472 |
| Durchmusterung (DM) Number | CD-3414660 |
Washington Double Stars (WDS) Number
| 20500-3347
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 300665 |
| Right Ascension (RA) J2000 | 20h 49m 58.082s |
| Declination (Dec) J2000 | -33° 46' 47.000" |
| Position Uncertainty | 0.0102s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00030 |
| Proper Motion in Dec (J2000) | -0.020266 |
| Radial Velocity | -014.5km s-1 |
| Trigonometric Parallax | +0.00857s |
| Trigonometric Parallax Uncertainty | 0.00080s |
| GCI Unit Vector in X (J2000) | 0.561452 |
| GCI Unit Vector in Y (J2000) | -0.612889 |
| GCI Unit Vector in Z (J2000) | -0.556001 |
| Galactic Longitude | 9.89° |
Galactic Latitude
| -38.26°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.90 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 5.89 |
| Observed B-V Colour | +0.987 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.6 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | G7III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 166 |
| Year of Observation | 1933. AD |
