Halqa tumanligi (Messier 57, M57 yoki NGC 6720) – Lira yulduz turkumi yaqinida halqa shaklida koʻrinadigan planetar tumanlik.
Vikiomborda Halqa tumanligi haqida turkum mavjud |
◄ NGC 6716 | NGC 6717 | NGC 6718 | NGC 6719 | NGC 6720 | NGC 6721 | NGC 6722 | NGC 6723 | NGC 6724 ► |
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