| Identification Data |
| Common Name | Nekkar |
| Constellation | Boötes |
| Star Name | 42bet Boo |
| Skymap Number | 15010140 |
| Henry Draper (HD) Number | 133208 |
| Harvard Revised (HR) Number | 5602 |
| SAO Number | 45337 |
| Durchmusterung (DM) Number | BD+40 2840 |
Washington Double Stars (WDS) Number
|
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| Positional Data |
| Position and Proper Motion (PPM) Number | 54491 |
| Right Ascension (RA) J2000 | 15h 1m 56.762s |
| Declination (Dec) J2000 | +40° 23' 26.036" |
| Position Uncertainty | 0.0064s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00352 |
| Proper Motion in Dec (J2000) | -0.029266 |
| Radial Velocity | -019.9km s-1 |
| Trigonometric Parallax | +0.01491s |
| Trigonometric Parallax Uncertainty | 0.00057s |
| GCI Unit Vector in X (J2000) | -0.533972 |
| GCI Unit Vector in Y (J2000) | -0.543118 |
| GCI Unit Vector in Z (J2000) | 0.647994 |
| Galactic Longitude | 67.61° |
Galactic Latitude
| 60.04°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.48 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.43 |
| Observed B-V Colour | +0.952 |
| 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 | G8IIIaFe-0.5 |
| One-Dimensional Spectral Class | G5 |
| Position Angle | |
| Year of Observation | AD |
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