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 |