MyCn18: Tumannost' Pesochnye Chasy
4.06.2000 | Astronomicheskaya kartinka dnya

Dlya central'noi, eshe nedavno pohozhei na nashe Solnce, zvezdy etoi planetarnoi tumannosti, napominayushei po forme pesochnye chasy, pesok vremeni uzhe na ishode. Teper' zapasy yadernogo topliva istoshilis', i v zhizni etoi zvezdy nastupila korotkaya, no zahvatyvayushaya zaklyuchitel'naya faza, kogda ee vneshnie sloi sbrosheny, a yadro, postepenno ohlazhdayas', prevrashaetsya v belyi karlik.