Naos (Zeta Puppis)
Typical of its breed, Naos is blowing a fierce stellar wind, averaging 2,300 km/s and over a millionth of a solar mass a year (10 million times the rate lost by the Sun). This wind has been so well observed at wavelengths from radio wave to X-ray that it has become a major proving ground for stellar wind theorists.
Naos is a classic O-type runaway star, having been ejected at high speed (nearly 100 km/s) from its place of origin in the neighboring constellation Vela. Over the past 1 to 2 million years – much of its brief life – it has covered some 400 light-years. Such stars are invariably single and spin much faster than normal O stars: in Naos's case, at least 220 km/s at its equator (100 times the Sun's rotation speed).
Related category NOTABLE STARS
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