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Articles with 'D'

— 2 articles

Drenowski, Alexander Kirilow (1879-1967)Drenowski, Alexander Kirilow (1879-1967)

— In: Biology

Alexander Kirilow Drenowski was born on 22 July 1879 in Ruse. He graduated secondary school in Ruse, and higher school in the University of Sofia in 1903 (Natural Sciences). His teacher in natural history was W. Kowatschew, the famous naturalist,... — full article

Dumbbell Nebula [M 27, Messier 27, NGC 6853]Dumbbell Nebula [M 27, Messier 27, NGC 6853]

— In: Astronomy and space

The Dumbbell, a nearby planetary nebula residing more than 1,200 light-years away, is the result of an old star that has shed its outer layers in a glowing display of colour. The nebula, also known as Messier 27 (M 27), was the first planetary... — full article

Compendium articles with 'D' — 2
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