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OBSERVING THE SUN & PLANETARY TRANSITS. Petr HEINZEL Solar Physics Department Astronomical Institute of the Academy of Sciences Czech Republic. Eclipse observations. Planetary eclipse. Observing the Venus transit means observing the Sun. What one can see on the surface of the Sun ?.
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OBSERVING THE SUN& PLANETARY TRANSITS Petr HEINZEL Solar Physics Department Astronomical Institute of the Academy of Sciences Czech Republic
Observing the Venus transit means observing the Sun What one can see on the surface of the Sun ?
Full disk in H-alpha line Observatoire de Paris - Meudon