| Identification Data |
| Common Name | |
| Constellation | Microscopium |
| Star Name | eta Mic |
| Skymap Number | 21060074 |
| Henry Draper (HD) Number | 200702 |
| Harvard Revised (HR) Number | 8069 |
| SAO Number | 230523 |
| Durchmusterung (DM) Number | CD-4114379 |
Washington Double Stars (WDS) Number
| 21064-4123
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 326857 |
| Right Ascension (RA) J2000 | 21h 6m 25.520s |
| Declination (Dec) J2000 | -41° 23' 9.475" |
| Position Uncertainty | 0.0071s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00260 |
| Proper Motion in Dec (J2000) | -0.012066 |
| Radial Velocity | +011.0km s-1 |
| Trigonometric Parallax | +0.00350s |
| Trigonometric Parallax Uncertainty | 0.00092s |
| GCI Unit Vector in X (J2000) | 0.545186 |
| GCI Unit Vector in Y (J2000) | -0.515443 |
| GCI Unit Vector in Z (J2000) | -0.661128 |
| Galactic Longitude | 0.38° |
Galactic Latitude
| -42.25°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.52 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 6.87 |
| Observed B-V Colour | +1.349 |
| 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 | 5.4 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K3III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 56 |
| Year of Observation | 1897. AD |
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