| Identification Data |
| Common Name | Metallah |
| Constellation | Triangulum |
| Star Name | 2alp Tri |
| Skymap Number | 1530014 |
| Henry Draper (HD) Number | 11443 |
| Harvard Revised (HR) Number | 544 |
| SAO Number | 74996 |
| Durchmusterung (DM) Number | BD+28 312 |
Washington Double Stars (WDS) Number
| 01531+2935
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 91161 |
| Right Ascension (RA) J2000 | 1h 53m 4.907s |
| Declination (Dec) J2000 | +29° 34' 43.785" |
| Position Uncertainty | 0.0074s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00092 |
| Proper Motion in Dec (J2000) | -0.233766 |
| Radial Velocity | -016.2km s-1 |
| Trigonometric Parallax | +0.05087s |
| Trigonometric Parallax Uncertainty | 0.00082s |
| GCI Unit Vector in X (J2000) | 0.765944 |
| GCI Unit Vector in Y (J2000) | 0.411909 |
| GCI Unit Vector in Z (J2000) | 0.493621 |
| Galactic Longitude | 138.65° |
Galactic Latitude
| -31.40°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.42 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 3.91 |
| Observed B-V Colour | +0.492 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
| 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 | F6IV |
| One-Dimensional Spectral Class | F5 |
| Position Angle | 309 |
| Year of Observation | 1909. AD |
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