| Identification Data |
| Common Name | |
| Constellation | Corona Borealis |
| Star Name | 21nu 2CrB |
| Skymap Number | 16220094 |
| Henry Draper (HD) Number | 147767 |
| Harvard Revised (HR) Number | 6108 |
| SAO Number | 65259 |
| Durchmusterung (DM) Number | BD+34 2774 |
Washington Double Stars (WDS) Number
| 16224+3348
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 79260 |
| Right Ascension (RA) J2000 | 16h 22m 29.218s |
| Declination (Dec) J2000 | +33° 42' 12.522" |
| Position Uncertainty | 0.0061s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00042 |
| Proper Motion in Dec (J2000) | +0.050066 |
| Radial Velocity | -039.7km s-1 |
| Trigonometric Parallax | +0.00598s |
| Trigonometric Parallax Uncertainty | 0.00058s |
| GCI Unit Vector in X (J2000) | -0.343382 |
| GCI Unit Vector in Y (J2000) | -0.757747 |
| GCI Unit Vector in Z (J2000) | 0.554895 |
| Galactic Longitude | 54.68° |
Galactic Latitude
| 44.51°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.40 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 6.93 |
| Observed B-V Colour | +1.534 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.006 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.3 |
| Observed Photographic Magnitude | 6.5 |
| Morgan Keenan (MK) Spectral Type | K5III |
| One-Dimensional Spectral Class | K5 |
| Position Angle | 16 |
| Year of Observation | 1921. AD |
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