AltairA blue-white star, which is quite good visible in summer on the northern hemisphere. Altair is one of the fastest rotating stars we know of. In 6.5 hours it rotates once. The smaller Sun needs 600 hours for this. Due to its fast rotation Altair ist strongly oblate on its poles.Constellation: Aquila Age: < 1 billion years Distance: 16.77 light-years Spectral class: A7 Visual magnitude: 0.77 Luminosity: 11.39 * Sun Mass: 2 * Sun Diameter: 1.631 * Sun Radial velocity: -26.1 km/sec Back: List of Special Stars |
Graphic: Zina Deretsky, National Science Foundation |
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