| Identification Data |
| Common Name | |
| Constellation | Lynx |
| Star Name | 21 Lyn |
| Skymap Number | 7260172 |
| Henry Draper (HD) Number | 58142 |
| Harvard Revised (HR) Number | 2818 |
| SAO Number | 41764 |
| Durchmusterung (DM) Number | BD+49 1623 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 49857 |
| Right Ascension (RA) J2000 | 7h 26m 42.851s |
| Declination (Dec) J2000 | +49° 12' 41.497" |
| Position Uncertainty | 0.0095s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00110 |
| Proper Motion in Dec (J2000) | -0.048666 |
| Radial Velocity | +026.5km s-1 |
| Trigonometric Parallax | +0.01311s |
| Trigonometric Parallax Uncertainty | 0.00079s |
| GCI Unit Vector in X (J2000) | -0.241317 |
| GCI Unit Vector in Y (J2000) | 0.607063 |
| GCI Unit Vector in Z (J2000) | 0.757126 |
| Galactic Longitude | 168.72° |
Galactic Latitude
| 25.75°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.62 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.62 |
| Observed B-V Colour | -0.005 |
| 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 | 4.5 |
| Observed Photographic Magnitude | 4.4 |
| Morgan Keenan (MK) Spectral Type | A1V |
| One-Dimensional Spectral Class | A0 |
| Position Angle | |
| Year of Observation | AD |
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