| Identification Data |
| Common Name | Ain |
| Constellation | Taurus |
| Star Name | 74eps Tau |
| Skymap Number | 4280099 |
| Henry Draper (HD) Number | 28305 |
| Harvard Revised (HR) Number | 1409 |
| SAO Number | 93954 |
| Durchmusterung (DM) Number | BD+18 640 |
Washington Double Stars (WDS) Number
| 04286+1911
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 119934 |
| Right Ascension (RA) J2000 | 4h 28m 36.999s |
| Declination (Dec) J2000 | +19° 10' 49.554" |
| Position Uncertainty | 0.0114s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00757 |
| Proper Motion in Dec (J2000) | -0.036866 |
| Radial Velocity | +039.0km s-1 |
| Trigonometric Parallax | +0.02104s |
| Trigonometric Parallax Uncertainty | 0.00082s |
| GCI Unit Vector in X (J2000) | 0.366700 |
| GCI Unit Vector in Y (J2000) | 0.870396 |
| GCI Unit Vector in Z (J2000) | 0.328544 |
| Galactic Longitude | 177.60° |
Galactic Latitude
| -19.92°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.54 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.55 |
| Observed B-V Colour | +1.014 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.6 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | G9.5IIICN0.5 |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 268 |
| Year of Observation | 1909. AD |
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