| Identification Data |
| Common Name | Polaris |
| Constellation | Ursa Minor |
| Star Name | 1alp UMi |
| Skymap Number | 2480053 |
| Henry Draper (HD) Number | 8890 |
| Harvard Revised (HR) Number | 424 |
| SAO Number | 308 |
| Durchmusterung (DM) Number | BD+88 8 |
Washington Double Stars (WDS) Number
| 02309+8915
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 431 |
| Right Ascension (RA) J2000 | 2h 31m 49.083s |
| Declination (Dec) J2000 | +89° 15' 50.794" |
| Position Uncertainty | 0.0064s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.22953 |
| Proper Motion in Dec (J2000) | -0.011866 |
| Radial Velocity | -017.4km s-1 |
| Trigonometric Parallax | +0.00756s |
| Trigonometric Parallax Uncertainty | 0.00048s |
| GCI Unit Vector in X (J2000) | 0.010127 |
| GCI Unit Vector in Y (J2000) | 0.007899 |
| GCI Unit Vector in Z (J2000) | 0.999918 |
| Galactic Longitude | 123.28° |
Galactic Latitude
| 26.46°
|
| Observational Data |
| Observed Visual Magnitude (V) | 2.00 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 2.62 |
| Observed B-V Colour | +0.620 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 2.1 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | F7:Ib-II |
| One-Dimensional Spectral Class | F8 |
| Position Angle | 216 |
| Year of Observation | 1973. AD |
